Hazard Plain Preview: automated baseline

Union County, NC

Risk-assessment baseline packet

Unit
County area 37179
Release
2026-10
As of
2026-09-28
Storm Events data through
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

A starting point for the plan's risk assessment (FEMA Local Mitigation Plan Review Tool, Element B). It does not replace local data or FEMA review. Section headings say which FEMA review item each table supports; whether an item is satisfied is decided by the plan and its reviewers.

Hazard Plain release 2026-10, as of 2026-09-28. Independent product; not a FEMA document.

Plan clock

Status
Approved, expires 2030-04-14
Plan
Cabarrus Stanly Union Regional (FEMA plan 110547)
Approved
2025-04-15
Expires
2030-04-14
As of
2026-09-28
Days
1,294 days to expiry

What changed since your last plan (approved 2025-04-15)

New federal declarations
EM-3637-NC (1 declaration row; 1 counted incident)
Storm Events records since approval
14 (data through 2026-06-30)
Repetitive loss now
FMA RL 0, SRL 0 (44 CFR 77.2); any definition: 9
Repeat-flood change
First release: no prior release to compare.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

Plan status for every jurisdiction listed in this county: 15 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" after these cover pages.

State plan status and tribal plans in this state: see the state page.

Plan clock

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Union County (unincorporated area)UnincorporatedApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294member approved 2025-06-30
Fairview townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294member approved 2025-04-22
Hemby Bridge townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294member approved 2025-05-28
Indian Trail townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Lake Park villageVillageApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Marshville townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Marvin villageVillageApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Mineral Springs townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Monroe cityCityApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Stallings townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294member approved 2025-06-30
Unionville townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Waxhaw townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Weddington townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294
Wesley Chapel villageVillageApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294member approved 2025-04-29
Wingate townTownApproved, expires 2030-04-14Cabarrus Stanly Union Regional (FEMA plan 110547)2025-04-152030-04-141,294member approved 2025-04-22

Plan 110547 also covers 17 other participants not listed on this page (named in the XLSX file).

Source

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B1-a: hazards

Hazards NRI does not cover: check locally

  • dam failure (incl. upstream dams)
  • levee failure
  • flash flood as its own subtype
  • ice jams
  • debris flows
  • erosion (riverine and coastal)
  • land subsidence and sinkholes
  • expansive soils

The 18 National Risk Index hazards, ranked by expected annual loss (EAL)

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively ModerateRelatively High$71,269,848$435$1,910,190$73,180,47381
2TornadoRelatively HighRelatively High$5,959,527$17,294$10,396,909$16,373,7318
3EarthquakeRelatively LowRelatively Moderate$3,033,637$930,700$3,964,337Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
4Cold WaveRelatively ModerateRelatively Moderate$12,510$161,502$3,606,188$3,780,2007Includes 2 Frost/Freeze records, event types the NRI definition of this hazard leaves out.
5HurricaneRelatively LowRelatively Moderate$1,413,529$1,699,431$66,121$3,179,0804
6Ice StormVery HighVery High$2,371,269$375,872$2,747,1416
7Strong WindRelatively HighRelatively High$270,013$55,426$2,366,337$2,691,776220Includes 7 High Wind records and 4 Strong Wind records, event types the NRI definition of this hazard leaves out.
8Heat WaveRelatively LowRelatively Low$125$552$1,421,700$1,422,3763
9LightningRelatively HighRelatively High$89,245$1,202,263$1,291,50818
10HailRelatively LowRelatively Moderate$581,314$43,264$101,643$726,22195
11DroughtRelatively ModerateRelatively Moderate$713,377$713,37735
12Winter WeatherRelatively ModerateRelatively Moderate$7,825$902$210,274$219,00047Includes 3 Sleet records, event types the NRI definition of this hazard leaves out.
13WildfireVery LowVery Low$35,937$89$5,024$41,0500No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
14LandslideVery LowVery Low$776$72$8480Declared 1 time; no Storm Events record of this type. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Check your state hazard mitigation plan's hazard list for this county; explain any hazard you drop.

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 48
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 48
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.43 of 48
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.48 of 48
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.48 of 48
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48
Inland FloodingThe FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.48 of 48
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.48 of 48
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.48 of 48
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 48
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 48
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.48 of 48
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.48 of 48

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

Supports B1-c: extent

Extent: scale, observed range and worst recorded event per hazard

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill5, 1997 to 2026 (5 zone-level)1 day to 31 days (median 2 days); 5 with a recorded value31 days, 2000-12-01 to 2000-12-31, from 1 monthly summary record (a monthly summary record covers most or all of a month; it does not count days at wave conditions), zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required.
Frost/Freeze (outside NRI Cold Wave definition)crop damage2, 2004 to 2007 (2 zone-level)Frost/Freeze, 2007-04-08, $500,000 crop damage, reported for the zone (2007 dollars); NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale35, 1998 to 2026 (35 zone-level)31 days to 276 days (median 61 days); 12 with a recorded value276 days (9 months), 2007-05-01 to 2008-01-31, a run of 9 consecutive Storm Events drought records, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)130, 1982 to 20250.75 in to 2.25 in (median 1 in); 130 with a recorded value2.25 in hail, 2011-04-09Event records naming member places: Waxhaw town (19 records), Monroe city (18 records), Indian Trail town (11 records), Stallings town (6 records), Unionville town (6 records), Wingate town (5 records), Weddington town (4 records), Fairview town (3 records), Marshville town (3 records), Wesley Chapel village (3 records); and 1 more member place (see the XLSX file).
Excessive Heat, Heatheat index (narratives)3, 2012 to 2012 (3 zone-level)1 day to 3 days (median 2 days); 2 with a recorded value3 consecutive days, 2012-06-29 to 2012-07-01, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson4, 2018 to 2024 (4 zone-level)Strongest recorded (records with damage, a wind speed or direct casualties first, then storm type, category and wind): Tropical Storm record, 2024-09-27, $2,000,000 property; $0 crops, reported for the zone (2024 dollars); NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)6, 1996 to 2022 (6 zone-level)Ice Storm, 2002-12-04, $11,000,000 property; crops not reported, reported for the zone (2002 dollars); NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)81, 1996 to 2026 (8 zone-level)Flash Flood, 2003-06-17, $100,000 property; crops not reported (2003 dollars)Event records naming member places: Monroe city (23 records), Fairview town (8 records), Wingate town (6 records), Indian Trail town (5 records), Weddington town (3 records), Wesley Chapel village (3 records), Unionville town (2 records), Waxhaw town (2 records), Marvin village (1 record), Stallings town (1 record). Zone-level records (8) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)18, 1996 to 2012Lightning, 1998-07-20, $250,000 property; crops not reported (1998 dollars)Event records naming member places: Monroe city (9 records), Weddington town (3 records), Indian Trail town (1 record), Marshville town (1 record), Wingate town (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)11, 1996 to 2024 (11 zone-level)40 kt (46 mph) to 65 kt (75 mph) (median 50 kt (58 mph)); 8 with a recorded value65 kt (75 mph) estimated gust, High Wind, 2004-03-07; NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesStrong Wind, 2018-09-15, $50,000 property; $0 crops, reported for the zone (2018 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)256, 1966 to 202650 kt (58 mph) to 100 kt (115 mph) (median 50 kt (58 mph)); 210 with a recorded value100 kt (115 mph) estimated, Thunderstorm Wind, 2001-06-22Thunderstorm Wind, 1998-07-19, $600,000 property; crops not reported (1998 dollars)Event records naming member places: Monroe city (54 records), Waxhaw town (24 records), Marshville town (23 records), Unionville town (14 records), Fairview town (13 records), Wingate town (12 records), Indian Trail town (10 records), Weddington town (8 records), Stallings town (6 records), Wesley Chapel village (4 records); and 1 more member place (see the XLSX file).
TornadoEnhanced Fujita (F before Feb 2007)22, 1950 to 2025F/EF0 to F/EF4 (median F/EF1); 22 with a recorded valueF4 tornado, 1989-05-05, 13 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 500 yd wide, $25,000,000 property; crops not recorded (1989 dollars), 1 direct death, 6 direct injuriesEvent records naming member places: Unionville town (3 records), Monroe city (2 records), Indian Trail town (1 record), Stallings town (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)0Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)47, 1996 to 2026 (47 zone-level)Heavy Snow, 2004-02-26, $500,000 property; crops not reported, reported for the zone (2004 dollars); NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

Where a hazard names more than 10 member places, the table lists the 10 with the most records; every place is in the XLSX file, sheet "B1-c Extent".

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Supports B1-d: previous occurrences

Declaration rows
21
Counted incidents
15

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-01-242026-01-21EM-3637-NCEmergencySEVERE WINTER STORMWinter Weathernone foundnew since last plan; within last 5 years
2024-09-282024-09-25DR-4827-NCMajor disasterTROPICAL STORM HELENEHurricane$58,350.60during plan review, check whether your last plan included it; within last 5 years
2024-09-262024-09-25EM-3617-NCEmergencyHURRICANE HELENEHurricane (primary); also designated: Inland Flooding, Landslidenone foundduring plan review, check whether your last plan included it; within last 5 yearssame incident as DR-4827
2024-08-062024-08-05EM-3608-NCEmergencyTROPICAL STORM DEBBYHurricanenone foundduring plan review, check whether your last plan included it; within last 5 years
2022-10-012022-09-28EM-3586-NCEmergencyHURRICANE IANHurricanenone foundwithin last 5 years
2020-08-022020-07-31EM-3534-NCEmergencyHURRICANE ISAIASHurricanenone found
2020-03-252020-01-20DR-4487-NCMajor disasterCOVID-19 PANDEMICNon-natural, not counted$13,405.16
2020-03-132020-01-20EM-3471-NCEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4487
2019-09-032019-09-01EM-3423-NCEmergencyHURRICANE DORIANHurricanenone found
2018-09-142018-09-07DR-4393-NCMajor disasterHURRICANE FLORENCEHurricane$1,277,269.60
2018-09-102018-09-07EM-3401-NCEmergencyHURRICANE FLORENCEHurricanenone foundsame incident as DR-4393
2005-09-052005-08-29EM-3222-NCEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2004-09-102004-09-07DR-1546-NCMajor disasterTROPICAL STORM FRANCESHurricanePA not declared for this county
2002-12-122002-12-04DR-1448-NCMajor disasterSEVERE ICE STORMIce Storm$8,454.90
2000-01-312000-01-24DR-1312-NCMajor disasterSEVERE WINTER STORMWinter Weather$4,767,330.21
1999-09-161999-09-15DR-1292-NCMajor disasterHURRICANE FLOYD MAJOR DISASTER DECLARATIONSHurricane$14,557.63
1999-09-151999-09-15EM-3146-NCEmergencyHURRICANE FLOYD EMERGENCY DECLARATIONSHurricanenone foundsame incident as DR-1292
1996-01-131996-01-06DR-1087-NCMajor disasterBLIZZARD OF 96Winter Weathernone found
1989-09-251989-09-21DR-844-NCMajor disasterHURRICANE HUGOHurricanenone found
1989-05-171989-05-05DR-827-NCMajor disasterTORNADOESTornadoPA not declared for this county
1977-08-111977-08-11EM-3049-NCEmergencyDROUGHTDroughtnone found

County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
1964-10-131964-10-13DR-179-NCMajor disasterSEVERE STORMS & FLOODINGInland Flooding
1962-03-161962-03-16DR-130-NCMajor disasterSEVERE STORM, HIGH TIDES & FLOODINGInland Flooding (primary); also designated: Coastal Flooding
1960-09-161960-09-16DR-107-NCMajor disasterHURRICANE DONNAHurricane (primary); also designated: Inland Flooding
1958-10-011958-10-01DR-87-NCMajor disasterHURRICANE & SEVERE STORMHurricane
1956-04-241956-04-24DR-56-NCMajor disasterSEVERE STORMHazard not mapped (severe storm title names no single hazard); not counted
1955-08-131955-08-13DR-37-NCMajor disasterHURRICANESHurricane (primary); also designated: Inland Flooding
1954-10-171954-10-17DR-28-NCMajor disasterHURRICANEHurricane (primary); also designated: Inland Flooding

FEMA recorded these with designated area Statewide and no county. Listed on every county page in the state; not counted with county rows.

1 Fire Management declaration (1986-05-10 to 1986-05-10) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Source

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave7101001996 to 2026-06-30Includes 2 Frost/Freeze records, event types the NRI definition of this hazard leaves out.
Drought35202101996 to 2026-06-30
Earthquake000000No Storm Events record; local data required (e.g., USGS).
Hail130239001955 to 2026-06-30
Heat Wave3000001996 to 2026-06-30
Hurricane4012901996 to 2026-06-30
Ice Storm6001101996 to 2026-06-30
Inland Flooding81226101996 to 2026-06-30
Landslide0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Lightning18000001996 to 2026-06-30
Strong Wind2675925001955 to 2026-06-30Includes 7 High Wind records and 4 Strong Wind records, event types the NRI definition of this hazard leaves out.
Tornado22011101950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather47225311996 to 2026-06-30Includes 3 Sleet records, event types the NRI definition of this hazard leaves out.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2024-09-27Tropical Storm$2,000,000 property; $0 crops, reported for the zone (2024 dollars)0, 0NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesduring plan review, check whether your last plan included it; within last 5 yearsB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2018-09-16Flood$5,000 property; $0 crops (2018 dollars)1, 0OLIVE BRANCH to BRIEFdeaths or injuries recorded
2018-09-16Flash Flood$50,000 property; $0 crops (2018 dollars)1, 0OLIVE BRANCH to BRIEFdeaths or injuries recorded
2012-06-29Excessive Heatdamage not reported0, 0NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesB1-c worst recorded: Excessive Heat, Heat
2007-04-08Frost/Freeze$0 property; $500,000 crops, reported for the zone (2007 dollars)0, 0NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesB1-c worst recorded: Frost/Freeze (outside NRI Cold Wave definition)
2004-03-07High Wind65 kt (75 mph) estimated gust$20,000 property; crops not reported, reported for the zone (2004 dollars)0, 0NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
2003-06-17Flash Flood$100,000 property; crops not reported (2003 dollars)0, 0WAXHAWB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2002-12-04Ice Storm$11,000,000 property; crops not reported, reported for the zone (2002 dollars)0, 0NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesB1-c worst recorded: Ice Storm
2001-06-22Thunderstorm Wind100 kt (115 mph) estimateddamage not reported0, 0WINGATEB1-c worst recorded: Thunderstorm Wind
2000-12-01Extreme Cold/Wind Chilldamage not reported0, 0NWS zone NCZ082 (UNION), zone-level: may include parts of neighboring countiesB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1998-07-20Lightning$250,000 property; crops not reported (1998 dollars)0, 0COUNTYWIDEB1-c worst recorded: Lightning
1989-05-05TornadoF4, 13 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 500 yd wide$25,000,000 property; crops not recorded (1989 dollars)1, 6location not recordeddeaths or injuries recorded

The full list is in the XLSX file, sheet "B1-d Storm Events history" (620 rows).

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

State-declared emergencies are not in federal data. Add them from your state emergency management agency.

Tribal and special-area declarations in this state are listed on the state page.

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave0.316event-days per yearabout 0.316 days per yearLikelyevent-days in 4 of 30 years, 1996 to 2025 (13.3%)62005-11-12 to 2024-11-12 (19 years)countywideFrost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought21.8event-days per yearabout 21.8 days per yearLikelyevent-days in 8 of 30 years, 1996 to 2025 (26.7%)6932000 to 2025 (25.25 years; D3 and D4 only)countywideNRI gives about 21.8 drought event-days a year here (its annualized frequency over 25.25 years; not its event count divided by the years), but Storm Events has a record in only 8 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Earthquake0.00212annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.212%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail4.25events per yearabout 4.25 per yearHighly likelyFEMA annualized frequency (modeled)161.7 (modeled)1986 to 2023 (38 years)countywide
Heat Wave3.26event-days per yearabout 3.26 days per yearPossibleevent-days in 1 of 30 years, 1996 to 2025 (3.33%)522005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 3.26 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 1 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricane0.111events per yearabout 1 in 9 yearsLikelyFEMA annualized frequency (modeled)311851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm1.92event-days per yearabout 1.92 days per yearLikelyevent-days in 5 of 30 years, 1996 to 2025 (16.7%)1301946-12-31 to 2014-02-12 (67 years)countywideNRI gives about 1.92 ice storm event-days a year here (its annualized frequency over 67 years; not its event count divided by the years), but Storm Events has a record in only 5 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Inland Flooding2.43event-days per yearabout 2.43 days per yearLikelyevent-days in 25 of 30 years, 1996 to 2025 (83.3%)681996 to 2023 (28 years)see B1-f
Landslide0.269events per year (modeled)about 1 in 4 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning52.5days per year with a strikeabout 52.5 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind2.9events per yearabout 2.9 per yearHighly likelyFEMA annualized frequency (modeled)1111986 to 2023 (38 years)countywide
Tornado0.336events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.0000757annual probability at a locationchance a given location in the county burns in a year: 0.00757%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo Storm Events record of this hazard, 1996 to 2025; descriptor not assigned (the NRI value is the chance at a location in the county, not how often the hazard affects the county)
Winter Weather4.68event-days per yearabout 4.68 days per yearLikelyevent-days in 22 of 30 years, 1996 to 2025 (73.3%)892005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) comes from the National Risk Index v1.20 (December 2025). It is not recorded events divided by years, and what it measures depends on the hazard. For most hazards it estimates how often the hazard affects this county each year: it counts events or event-days (drought, heat wave, cold wave, winter weather, ice storm and inland flooding are in days per year; lightning is the number of days per year with a recorded cloud-to-ground strike, from the NOAA Storm Prediction Center daily lightning climatology); it may count events in the surrounding area (hail, strong wind, tornado, hurricane and ice storm use a 49 km grid and buffers) and is averaged over the county's area; and some hazards use a minimum value for places with no recorded event. Earthquake, wildfire and coastal flooding are different: FEMA computes them for each census block and averages them over the county, so the value is the chance (for coastal flooding, the modeled number of floods per year) at a location in the county, which is lower than the chance that the hazard strikes somewhere in the county. Earthquake is the chance of at least minor-damage shaking (U.S. Geological Survey model); wildfire is the chance that a location burns in a large fire (U.S. Forest Service burn probability); coastal flooding comes from FEMA flood zones and NOAA high-tide flooding, so it can be above 1 where high-tide flooding is frequent. Tsunami is the value at the county's most exposed location, from recorded events and modeled return periods. For these four hazards the packet gives no "1 in N years" and takes the descriptor from Storm Events (none for earthquake) unless the value is 1 or more a year. Landslide is a U.S. Geological Survey modeled county rate spread by slope susceptibility. Volcanic activity is the chance that a volcano affecting the county erupts in a year. Drought counts only extreme and exceptional drought (D3 and D4). Source: FEMA, National Risk Index Technical Documentation v1.20, sections 5.2.2 (Table 5), 5.2.3, 7.4, 10.4, 16.5, 17.1, 17.3.1, 17.5, 20.3.1, 21.4, 22.4 and 6 to 23.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Descriptor scale used in this packet (defined per unit)

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202545301.5
Hail2.00 in+1996 to 20253300.1
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 2025198306.6
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 20258300.267
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 20251300.0333
TornadoEF0-11996 to 20258300.267
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.

Source

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions.

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 48Not Applicable 48
Coastal Flooding0 of 48Not Applicable 48
Cold Wave48 of 4835.455.975.5Relatively Moderate 41, Relatively Low 7National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought43 of 4871.582.097.0Relatively Moderate 6, Relatively Low 19, Very Low 18, No Rating 5National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Earthquake48 of 4846.566.082.6Relatively Moderate 4, Relatively Low 44
Hail48 of 4842.560.975.4Relatively Moderate 6, Relatively Low 42National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave48 of 4813.634.661.6Relatively Moderate 3, Relatively Low 41, Very Low 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane48 of 4852.563.886.5Relatively Moderate 7, Relatively Low 41
Ice Storm48 of 4882.393.197.5Relatively High 39, Relatively Moderate 9National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding48 of 4814.781.898.9Very High 5, Relatively High 22, Relatively Moderate 17, Relatively Low 3, Very Low 1
Landslide48 of 4815.253.487.9Relatively Low 1, Very Low 47
Lightning48 of 4843.471.191.5Relatively High 12, Relatively Moderate 32, Relatively Low 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind48 of 4853.276.890.9Relatively High 12, Relatively Moderate 35, Relatively Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado48 of 4861.984.197.4Very High 4, Relatively High 37, Relatively Moderate 7
Tsunami0 of 48Not Applicable 48
Volcanic Activity0 of 48Not Applicable 48
Wildfire48 of 4840.557.682.0Relatively Low 6, Very Low 42
Winter Weather48 of 4839.759.078.1Relatively Moderate 43, Relatively Low 5National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Union County (unincorporated area)UnincorporatedApproved, expires 2030-04-14FMA RL 0, SRL 0; any 2$1,331,530.170; 0
Fairview townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0none found24; 0
Hemby Bridge townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 1none found0; 0
Indian Trail townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 2$4,462.5028; 4
Lake Park villageVillageApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0none found0; 0
Marshville townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0$158,564.3827; 0
Marvin villageVillageApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0none found4; 0
Mineral Springs townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0none found0; 0
Monroe cityCityApproved, expires 2030-04-14FMA RL 0, SRL 0; any 1$2,139,924.05106; 0Includes $13,405.16 for declarations not counted as hazard incidents (DR-4487-NC).
Stallings townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 1none found14; 0
Unionville townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 1none found25; 1
Waxhaw townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0$64,613.1945; 0
Weddington townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0none found18; 0
Wesley Chapel villageVillageApproved, expires 2030-04-14FMA RL 0, SRL 0; any 1$46,866.4710; 0
Wingate townTownApproved, expires 2030-04-14FMA RL 0, SRL 0; any 0$217,138.6824; 1

Member rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each member row, while the county table counts only its part in this county.

School districts and special districts get a plan clock row only.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Supports B2-a and B2-b: assets and impacts

Local data required

County-level starter. The plan must describe impacts for each participant and its own assets.

  • Critical facilities and lifelines per hazard
  • A problem statement per participant per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

County-level starter: exposure, expected annual loss and damage since the plan

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2025-04-15county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$56,564,124,409$620,590,758237,844$12,510$161,502$3,606,188under 0.0001%$0
Drought$102,558,839$713,3770.696% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$92,035,010,610238,267$3,033,637$930,7000.0033%
Hail$56,564,124,409$620,590,758237,844$581,314$43,264$101,6430.00103%
Heat Wave$56,564,124,409$620,590,758237,844$125$552$1,421,700under 0.0001%
Hurricane$56,563,738,557$620,590,206237,843$1,413,529$1,699,431$66,1210.0025%
Ice Storm$56,563,744,141237,841$2,371,269$375,8720.00419%
Inland Flooding$56,546,793,904$19,084,3371,670$71,269,848$435$1,910,190n/a (see note)$21,000NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. EAL as % of exposure: n/a.
Landslide$571,731,1442,313$776$720.000136%
Lightning$56,564,124,409237,844$89,245$1,202,2630.000158%
Strong Wind$56,564,124,409$620,590,758237,844$270,013$55,426$2,366,3370.000477%$20,000
Tornado$56,564,124,409$620,590,758237,844$5,959,527$17,294$10,396,9090.0105%
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$14,558,001,477$117,904,98168,719$35,937$89$5,0240.000247%
Winter Weather$56,564,124,409$620,590,758237,844$7,825$902$210,274under 0.0001%$0none found (1 declaration)

Totals since 2025-04-15 (Storm Events through 2026-06-30): 9 county-coded records, 7 with a damage value recorded (including $0), $41,000; 5 zone-level records, 5 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance on counted declarations none found (1 declaration, 0 with PA).

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column must not be added up; the unit total counts each declaration once.

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B2-a: context

County context

MeasureValue
Population237,844
Building value (total, not at risk)$56,564,124,409
Agriculture value (total, not at risk)$620,590,758
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$87,737,826
Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage)$22,593,292
Social vulnerability ratingVery Low
Community resilience ratingRelatively Moderate
NRI versionDecember 2025

FEMA's all-hazard expected annual loss total adds buildings, agriculture and population equivalence; the two parts are shown separately so the property figure is not read as including the statistical value of life.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)0Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition9Severe repetitive loss, NFIP insurance definition0

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0090904
UNION COUNTY *0020200
INDIAN TRAIL, TOWN OF0020201
MONROE, CITY OF0010100
STALLINGS, TOWN OF0010100
WESLEY CHAPEL, VILLAGE OF0010101
HEMBY BRIDGE, TOWN OF0010101
UNIONVILLE, TOWN OF0010101
State level, not in this county: county not reported0020200

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Union County (unincorporated area)3702340020200
Fairview town3700240000000
Hemby Bridge town3706830010101
Indian Trail town3702350020201
Lake Park village3705200000000
Marshville town3704740000000
Marvin village3705140000000
Mineral Springs town3705290000000
Monroe city3702360010100
Stallings town3704720010100
Unionville town3706840010101
Waxhaw town3704730000000
Weddington town3705180000000
Wesley Chapel village3705250010101
Wingate town3703650000000

Per-member types: XLSX sheet 'B2-c Members'.

Member rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each member row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0080803
2 to 4 unit residential0000000
other residential0000000
non-residential0010101
not reported0000000

Institutional properties cannot be separated in this data: FEMA's occupancy groups have no institutional class, so they fall in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites; OpenFEMA's fmaRl field description omits the Increased Cost of Compliance clause of 44 CFR 77.2(i). NFIP repetitive loss (FEMA insurance definition, nfipRl) is 2 or more claims over $1,000 in 10 years and can drop to false when a property is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured.

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (as of 2026-08-02). No property is identified. County assignment is FEMA's geocode.

Counts may differ from your state NFIP coordinator's list, which is the source the Handbook names.

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 9 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Every table above lists its own sources. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
  6. NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
  7. NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty
  8. U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-28, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx

OpenFEMA disclaimer

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Reuse, citation and corrections

Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.

Cite this: Hazard Plain (2026). Union County, NC: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 37179). Preview: automated baseline. Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: to be added

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_NC_37179. Preview: automated baseline.