Hazard Plain Automated baseline

Wright County, MN

Risk-assessment baseline packet

County FIPS:
27171
Release:
2026-10
Data as of:
2026-09-30
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.

Hazard Plain release 2026-10, as of 2026-09-30.

Summary

Plan status as of 2026-09-30: Approved, expires 2028-05-28. Plan: Wright County (FEMA plan 109031), approved 2023-05-29.

Since the plan was approved on 2023-05-29: no new hazard declaration and 83 NOAA Storm Events records; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($29,911,838 a year), Tornado ($7,565,902) and Strong Wind ($5,750,008).

The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.

Plan clock

Status:
Approved, expires 2028-05-28
Plan:
Wright County (FEMA plan 109031)
Approved:
2023-05-29
Days to expiry:
606

What changed since your last plan (approved 2023-05-29)

New federal declarations:
none
Storm Events records since approval:
83 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 0, SRL 0 (44 CFR 77.2); any definition: 3
Repeat-flood change:
this release sets the baseline count.

Sources: 1, 2, 4, 6 (numbered list at the end)

Plan status for every jurisdiction listed in this county: 19 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following 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

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Wright CountyCountyApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2023-06-09
Albertville cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606
Annandale cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2023-06-09
Buffalo cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2024-09-24
Clearwater cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606
Cokato cityCityPlan 109031 approved 2023-05-29, pending adoption here; not yet eligibleWright County (FEMA plan 109031), pending adoption here2023-05-29 by FEMA; not yet adopted here2028-05-28 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Dayton cityCityApproved, expires 2029-05-02Hennepin County HMP Update (FEMA plan 109597)2024-05-032029-05-02945this jurisdiction approved 2025-04-14
Delano cityCityPlan 109031 approved 2023-05-29, pending adoption here; not yet eligibleWright County (FEMA plan 109031), pending adoption here2023-05-29 by FEMA; not yet adopted here2028-05-28 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Hanover cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2023-06-09
Howard Lake cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2024-09-24
Maple Lake cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2024-09-24
Monticello cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606
Montrose cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606
Otsego cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606
Rockford cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2024-09-24
South Haven cityCityPlan 109031 approved 2023-05-29, pending adoption here; not yet eligibleWright County (FEMA plan 109031), pending adoption here2023-05-29 by FEMA; not yet adopted here2028-05-28 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
St. Michael cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2023-06-09
Waverly cityCityApproved, expires 2028-05-28Wright County (FEMA plan 109031)2023-05-292028-05-28606this jurisdiction approved 2023-06-23
St. Cloud Public School DistrictSchool/School DistrictApproved, expires 2028-03-28Stearns County (FEMA plan 108887)2023-03-292028-03-28545this jurisdiction approved 2023-06-09

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

  • 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)

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countWhy this hazard can be left outNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$29,812,669$67,292$31,877$29,911,83823
2TornadoRelatively ModerateRelatively Moderate$4,121,183$5,572$3,439,147$7,565,90217
3Strong WindRelatively HighRelatively High$3,499,068$126,065$2,124,875$5,750,008236Includes 9 High Wind and 2 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
4HailRelatively ModerateRelatively High$2,624,580$283,489$180,332$3,088,401306
5Heat WaveRelatively LowRelatively Moderate$13,643$3$1,810,750$1,824,39612
6Cold WaveRelatively LowRelatively Moderate$119$1,582$1,597,107$1,598,80726Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
7LightningRelatively ModerateRelatively Moderate$55,287n/a$642,545$697,8327
8Winter WeatherRelatively ModerateRelatively High$85,657$1,426$182,262$269,344105
9Ice StormRelatively LowRelatively Moderate$196,127n/a$54,061$250,1880Declared 1 time; no Storm Events record of this type.
10WildfireVery LowRelatively Low$151,596$163$17,654$169,4120No recorded events in Storm Events since 1996 (data through 2026-06-30).
11DroughtRelatively LowRelatively Lown/a$59,944n/a$59,9440Declared 1 time; no Storm Events record of this type.
12EarthquakeVery LowVery Low$22,578n/a$7,427$30,004Storm Events does not record earthquakes.
13LandslideVery LowVery Low$764n/a$3,871$4,6350Declared 1 time; no Storm Events record of this type.
HurricaneNot ApplicableNot Applicable0NRI rates hurricane Not Applicable for this county, and no counted federal declaration for this county names it (EM-3242-MN names it but is not counted as a local occurrence; see B1-d).No recorded events in Storm Events since 1996 (data through 2026-06-30).

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

NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.

Local data needed: state and local wildfire and landslide records (Storm Events records these hazards only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche, coastal flooding, tsunami and volcanic activity. That is the evidence for leaving them out of the plan.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b: hazard location

Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.

Inland Flooding: The 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.

Hazards that vary within the county: highest-rated census tracts

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Earthquaketract 1012 (Very Low, 9.9); tract 1013 (Very Low, 9.6); tract 1010.02 (Very Low, 9.0)
Hurricaneno tract has a National Risk Index rating for this hazard
Landslidetract 1005 (Relatively Low, 91.1); tract 1007.06 (Relatively Low, 89.9); tract 1009 (Relatively Low, 87.5)
Tornadotract 1012 (Relatively High, 86.1); tract 1013 (Relatively High, 85.6); tract 1007.01 (Relatively High, 84.8)
Wildfiretract 1003 (Relatively Low, 87.0); tract 1002.03 (Relatively Low, 85.2); tract 1009 (Relatively Low, 83.5)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 1012 is Census Tract 1012). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

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

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill25 records, 1996 to 2026 (25 zone-level)1 day to 5 days (median 2 days); 23 with a recorded value5 consecutive days, 1996-01-31 to 1996-02-04, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage1 record, 2012 (1 zone-level)Frost/Freeze, 2012-04-10, $20,000 crop damage (2012 dollars); NWS zone MNZ059Countywide (zone-level records).
DroughtU.S. Drought Monitor scale (D0 to D4)0Storm 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)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)332 records, 1962 to 20260.75 in to 4 in (median 1 in); 332 with a recorded value4 in hail, 2019-08-05Hail, 2005-09-21, $25,000,000 property; crops not reported (2005 dollars)Event records naming jurisdictions in the plan: Monticello city (40 records), Cokato city (30 records), Delano city (27 records), Buffalo city (25 records), Annandale city (22 records), Montrose city (17 records), Howard Lake city (15 records), Hanover city (13 records), Maple Lake city (13 records), Otsego city (13 records); and 6 more jurisdictions (see the Excel file).
Excessive Heat, Heatheat index (in event narratives)12 records, 1999 to 2023 (12 zone-level)1 day to 5 days (median 2 days); 11 with a recorded value5 consecutive days, 2001-08-04 to 2001-08-08, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)0
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)23 records, 1997 to 2025 (6 zone-level)Flash Flood, 2002-06-24, $25,000,000 property; crops not reported (2002 dollars)Event records naming jurisdictions in the plan: St. Michael city (4 records), Delano city (3 records), Monticello city (2 records), Albertville city (1 record), Buffalo city (1 record), Howard Lake city (1 record), Otsego city (1 record), Rockford city (1 record). Zone-level records (6) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)7 records, 2005 to 2016Lightning, 2016-07-05, $500,000 property; $0 crops (2016 dollars)Event records naming jurisdictions in the plan: Monticello city (3 records), Otsego city (2 records), Annandale city (1 record), St. Michael city (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)11 records, 1996 to 2026 (11 zone-level)38 kt (44 mph) to 64 kt (74 mph) (median 52 kt (60 mph)); 11 with a recorded value64 kt (74 mph) measured, High Wind, 2000-04-05; NWS zone MNZ059Strong Wind, 2018-06-11, $1,000 property; $5,000 crops (zone total, 2018 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)272 records, 1968 to 202648 kt (55 mph) to 100 kt (115 mph) (median 55 kt (63 mph)); 232 with a recorded value100 kt (115 mph), measurement type not recorded, Thunderstorm Wind, 1983-07-19Thunderstorm Wind, 1997-07-01, $20,000,000 property; crops not reported (1997 dollars)Event records naming jurisdictions in the plan: Monticello city (27 records), Delano city (24 records), Howard Lake city (24 records), Cokato city (21 records), Annandale city (16 records), Buffalo city (14 records), Montrose city (12 records), Maple Lake city (11 records), St. Michael city (10 records), Albertville city (9 records); and 6 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)27 records, 1957 to 2023F/EF0 to F/EF3 (median F/EF1); 27 with a recorded valueF3 tornado, 1992-06-16, 10 mi path length (whole path, pre-1996), 120 yd wide, damage not recorded (pre-1996 record), 8 direct injuriesTornado, 2002-09-09, $1,400,000 property; crops not reported (2002 dollars)Event records naming jurisdictions in the plan: Howard Lake city (3 records), Monticello city (3 records), Buffalo city (2 records), Delano city (2 records), Waverly city (2 records), Albertville city (1 record), Clearwater city (1 record), Hanover city (1 record), Maple Lake city (1 record), Rockford city (1 record); and 2 more jurisdictions (see the Excel file).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)105 records, 1996 to 2026 (105 zone-level)No damage reported in 105 records.Countywide (zone-level records).

Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".

In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of debris flow and lightning.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records from zones that no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).

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

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 17 declarations covering 14 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsNotes
2020-04-072020-01-20DR-4531-MNMajor disasterCOVID-19 PandemicNon-natural, not countedno Public Assistance recorded
2020-03-132020-01-20EM-3453-MNEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4531
2014-07-212014-06-11DR-4182-MNMajor disasterSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesInland Flooding (primary); also designated: Landslide, Strong Wind$339,763.20
2011-05-102011-03-16DR-1982-MNMajor disasterSevere Storms and FloodingInland Flooding$199,480.83
2010-03-192010-03-01EM-3310-MNEmergencyFloodingInland Floodingno Public Assistance recorded
2005-09-132005-08-29EM-3242-MNEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2002-06-142002-06-09DR-1419-MNMajor disasterSevere Storms, Flooding and TornadoesInland Flooding; Tornado$1,361,979.60
2001-05-162001-03-23DR-1370-MNMajor disasterSevere Winter Storms, Flooding, and TornadoesInland Flooding (primary); also designated: Ice Storm, Tornado, Winter Weather$190,051.90
1997-08-251997-06-28DR-1187-MNMajor disasterSevere Storms, Tornadoes, High Winds, FloodingInland Flooding; Strong Wind; Tornadono Public Assistance recorded
1997-04-081997-03-21DR-1175-MNMajor disasterSevere Flooding, High Winds,Severe StormsInland Flooding (primary); also designated: Strong Windno Public Assistance recorded
1997-01-161997-01-03DR-1158-MNMajor disasterSevere Winter StormsWinter Weatherno Public Assistance recorded
1993-06-111993-05-06DR-993-MNMajor disasterSevere Storms, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1992-06-261992-06-16DR-946-MNMajor disasterSevere Storms, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1976-06-171976-06-17EM-3013-MNEmergencyDroughtDroughtno Public Assistance recorded
1969-04-181969-04-18DR-255-MNMajor disasterFloodingInland Floodingno Public Assistance recorded
1966-03-221966-03-22DR-215-MNMajor disasterFloodingInland Floodingno Public Assistance recorded
1965-04-111965-04-11DR-188-MNMajor disasterFloodingInland Floodingno Public Assistance recorded

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.

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1957-06-221957-06-22DR-80-MNMajor disasterFloodsInland Flooding

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.

7 Fire Management declarations (1976-09-08 to 1976-10-01) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance filed under this county for declarations that do not list it: 4 rows, $114,816.14

Sources: 2, 3

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
DR-4131-MN2013-07-25Severe Storms, Straight-Line Winds, and FloodingWRIGHT-HENNEPIN COOPERATIVE ELECTRIC ASSOCIATION$104,143.94
DR-4131-MN2013-07-25Severe Storms, Straight-Line Winds, and FloodingLYNDEN (TOWNSHIP OF)$2,760.08
DR-1830-MN2009-04-09Severe Storms and FloodingNORA (TOWNSHIP OF)$5,405.99
DR-1333-MN2000-06-27Severe Storms and FloodingNORA (TOWNSHIP OF)$2,506.13

FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.

Public Assistance not placed in any Minnesota county: 14 rows, $9,133,931.59; listed on the Minnesota state page.

Source: 3

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Cold Wave26316001996 to 2026-06-30Includes 1 Frost/Freeze record.
Drought0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail33226331001955 to 2026-06-30
Heat Wave12123001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Inland Flooding232021201996 to 2026-06-30
Landslide0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Lightning7000001996 to 2026-06-30
Strong Wind283281344301955 to 2026-06-30Includes 9 High Wind and 2 Strong Wind records.
Tornado27112501950 to 2026-06-30
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather10522931201996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationWhy listed
2019-08-05Hail4 in$0 property; $0 crops (2019 dollars)0, 0DELANOB1-c worst recorded: Hail
2016-07-05Lightning$500,000 property; $0 crops (2016 dollars)0, 0MONTICELLOB1-c worst recorded: Lightning
2012-04-10Frost/Freeze$0 property; $20,000 crops (zone total, 2012 dollars)0, 0NWS zone MNZ059 (WRIGHT), zone-levelB1-c worst recorded: Frost/Freeze
2008-07-10Lightning$0 property; $0 crops (2008 dollars)0, 1MONTICELLOdeaths or injuries recorded
2005-09-21Lightningdamage not reported0, 2OTSEGOdeaths or injuries recorded
2002-09-09TornadoF1, 1.1 mi within this county, 75 yd wide$1,400,000 property; crops not reported (2002 dollars)0, 0ALBERTVILLEB1-c most damaging: Tornado
2002-06-24Flash Flood$25,000,000 property; crops not reported (2002 dollars)0, 0COUNTYWIDEB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2001-08-04Heatdamage not reported0, 0NWS zone MNZ059 (WRIGHT), zone-levelB1-c worst recorded: Excessive Heat, Heat
2000-04-05High Wind64 kt (74 mph) measureddamage not reported0, 0NWS zone MNZ059 (WRIGHT), zone-levelB1-c worst recorded: High Wind and Strong Wind
1996-01-31Cold/Wind Chilldamage not reported0, 0NWS zone MNZ059 (WRIGHT), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1992-06-16TornadoF3, 10 mi path length (whole path, pre-1996), 120 yd widedamage not recorded (pre-1996 record)0, 8location not recordeddeaths or injuries recorded
1983-07-19Thunderstorm Wind100 kt (115 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Thunderstorm Wind

The full list is in the Excel file, sheet "B1-d Storm Events history" (815 rows).

Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.

Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).

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

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

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
Cold Wave10.4event-days per yearabout 10.4 days per yearLikelyStorm Events event-days in 12 of 30 years, 1996 to 2025 (40%)1982005-11-12 to 2024-11-12 (19 years)countywide
Drought5.93event-days per yearabout 5.93 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)2872000 to 2025 (25.25 years; D3 and D4 only)countywideNo Storm Events drought record, 1996 to 2025
Earthquake0.000265annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0265%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail6.31events per yearabout 6.31 per yearHighly likelyFEMA annualized frequency (modeled)239.6 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.16event-days per yearabout 4.16 days per yearLikelyStorm Events event-days in 8 of 30 years, 1996 to 2025 (26.7%)652005-11-12 to 2024-11-12 (19 years)countywide
Hurricaneevents per year1851 to 2024 (Atlantic)see B1-fNot Applicable in NRI for this county; no descriptor.
Ice Storm0.545event-days per yearabout 0.545 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)371946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding0.714event-days per yearabout 0.714 days per yearLikelyStorm Events event-days in 12 of 30 years, 1996 to 2025 (40%)201996 to 2023 (28 years)see B1-f
Landslide0.136events per year (modeled)about 1 in 7 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning35.4days per year with a strikeabout 35.4 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind4.23events per yearabout 4.23 per yearHighly likelyFEMA annualized frequency (modeled)1611986 to 2023 (38 years)countywide
Tornado0.509events per yearabout 0.51 per yearLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000341annual probability at a locationchance a given location in the county burns in a year: 0.0341%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather17.1event-days per yearabout 17.1 days per yearHighly likelyStorm Events event-days in 27 of 30 years, 1996 to 2025 (90%)3252005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

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

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 2025149304.97
Hail2.00 in+1996 to 202531301.03
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025207306.9
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 202515300.5
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20251300.0333
TornadoEF0-11996 to 202514300.467
TornadoEF2-31996 to 20253300.1
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).

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.

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 (https://resilience.climate.gov/).

Supports FEMA checklist item B1-f: hazards that vary across jurisdictions

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Cold Wave27 of 2723.645.158.5Relatively Moderate 9, Relatively Low 18
Drought27 of 2769.479.185.6Relatively Low 14, Very Low 13
Earthquake27 of 271.34.59.9Very Low 27
Hail27 of 2771.287.495.0Relatively High 9, Relatively Moderate 18
Heat Wave27 of 2714.057.473.5Relatively Moderate 14, Relatively Low 11, Very Low 2
Hurricane0 of 27Not Applicable 27
Ice Storm27 of 2720.255.672.0Relatively Moderate 1, Relatively Low 24, Very Low 2
Inland Flooding27 of 272.762.291.2Relatively High 4, Relatively Moderate 11, Relatively Low 10, Very Low 2
Landslide27 of 2750.074.391.1Relatively Low 6, Very Low 21
Lightning27 of 2724.163.781.0Relatively High 1, Relatively Moderate 21, Relatively Low 5
Strong Wind27 of 2771.094.598.3Very High 6, Relatively High 19, Relatively Moderate 2
Tornado27 of 2743.372.186.1Relatively High 10, Relatively Moderate 15, Relatively Low 2
Wildfire27 of 2757.374.987.0Relatively Low 23, Very Low 4
Winter Weather27 of 2740.073.983.9Relatively High 5, Relatively Moderate 20, Relatively Low 2

Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

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.

The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.

Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Wright CountyCountyApproved, expires 2028-05-28FMA RL 0, SRL 0; any 2no Public Assistance recorded0 total; 0 since its plan
Albertville cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$57,202.5622 total; 3 since its plan
Annandale cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$6,204.3939 total; 3 since its plan
Buffalo cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 1$67,084.4942 total; 1 since its plan
Clearwater cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0no Public Assistance recorded19 total; 3 since its plan
Cokato cityCityPlan 109031 approved 2023-05-29, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$22,019.2151 total; no approved plan
Dayton cityCityApproved, expires 2029-05-02FMA RL 0, SRL 0; any 1no Public Assistance recorded0 total; 0 since its planWhole community, including the part in Hennepin County; none of its repeat-flood properties are in this county.
Delano cityCityPlan 109031 approved 2023-05-29, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$432,954.7156 total; no approved plan
Hanover cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0no Public Assistance recorded21 total; 5 since its plan
Howard Lake cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$80,273.1843 total; 4 since its plan
Maple Lake cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$3,960.8225 total; 1 since its plan
Monticello cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0no Public Assistance recorded75 total; 3 since its plan
Montrose cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$12,569.1329 total; 4 since its plan
Otsego cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0no Public Assistance recorded19 total; 1 since its plan
Rockford cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$57,937.3316 total; 3 since its plan
South Haven cityCityPlan 109031 approved 2023-05-29, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0no Public Assistance recorded16 total; no approved plan
St. Michael cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$28,512.9027 total; 2 since its plan
Waverly cityCityApproved, expires 2028-05-28FMA RL 0, SRL 0; any 0$62,995.4218 total; 3 since its plan

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

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

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts

Local data needed

The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

  • Critical facilities and lifelines per hazard
  • A problem statement per jurisdiction 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

Sources: 1, 2, 3, 5, 6, 7

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2023-05-29county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Cold Wave$33,661,270,637$253,020,509141,326$119$1,582$1,597,107under 0.0001%$0
Droughtn/a$86,253,270n/an/a$59,944n/a0.0695% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$57,349,797,946n/a141,337$22,578n/a$7,427under 0.0001%
Hail$33,661,270,637$253,020,509141,326$2,624,580$283,489$180,3320.0078%$0
Heat Wave$33,661,270,637$253,020,509141,326$13,643$3$1,810,750under 0.0001%$0
HurricaneNot Applicable in NRI for this county
Ice Storm$33,661,270,637n/a141,326$196,127n/a$54,0610.000583%
Inland Flooding$33,606,866,151$7,072,6161,417$29,812,669$67,292$31,877n/a (see note)$0NRI 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.
Landslide$356,482,919n/a1,495$764n/a$3,8710.000214%
Lightning$33,661,270,637n/a141,326$55,287n/a$642,5450.000164%
Strong Wind$33,661,270,637$253,020,509141,326$3,499,068$126,065$2,124,8750.0104%$0$0
Tornado$33,661,270,637$253,020,509141,326$4,121,183$5,572$3,439,1470.0122%$0
Wildfire$5,145,552,206$60,561,64630,521$151,596$163$17,6540.00295%
Winter Weather$33,661,270,637$253,020,509141,326$85,657$1,426$182,2620.000254%$0

Totals since 2023-05-29 (Storm Events through 2026-06-30): 56 county-coded records, 56 with a damage value recorded (including $0), $0; 27 zone-level records, 27 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: no counted declaration since the plan.

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 does not add up to the total; the unit total counts each declaration once.

NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.

Supports FEMA checklist item B2-a: vulnerability (county context)

County context

Source: 5

MeasureValue
Population141,326
Building value (total, not at risk)$33,661,270,637
Agriculture value (total, not at risk)$253,020,509
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$41,128,807
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)$10,091,906
Social vulnerability ratingVery Low
Community resilience ratingVery High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.

Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

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 definition3Severe repetitive loss, NFIP insurance definition0

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county total and NFIP communities

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0030300
of which: Wright County (unincorporated area)0020200
of which: Buffalo city0010100

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Wright County2705340020200
Albertville city2752560000000
Annandale city2706650000000
Buffalo city2705350010100
Clearwater city2705360000000
Cokato city2705370000000
Dayton city2701570010101Whole community, including the part in Hennepin County; none of its repeat-flood properties are in this county.
Delano city2705390000000
Hanover city2705400000000
Howard Lake city2703970000000
Maple Lake city2706670000000
Monticello city2705410000000
Montrose city2752570000000
Otsego city2707470000000
Rockford city2701820000000
South Haven city2752550000000
St. Michael city2705430000000
Waverly city2706660000000

Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".

Jurisdiction 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 jurisdiction row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0030300
2 to 4 unit residential0000000
other residential0000000
non-residential0000000
not reported0000000

FEMA's occupancy groups have no institutional class; institutional properties are counted 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. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 3 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, 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 2026-09-30, 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 2026-09-30, 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 2026-09-30, 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 2026-09-30, 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 (used to match place names and codes; no table prints its values)

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each item is met.

The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.

How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.

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).

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). Wright County, MN: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 27171). Automated baseline. https://hazardplain.org/mn/27171/ 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: contact@hazardplain.org