Hazard Plain Automated baseline

Kent County, DE

Risk-assessment baseline packet

County FIPS:
10001
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: Expired on 2026-04-19. Plan: Kent County Hazard Mitigation Plan (FEMA plan 106435), approved 2021-04-20.

Update: FEMA tracker shows a plan approvable pending adoption.

Since the plan was approved on 2021-04-20: 1 new hazard declaration (1 incident) 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 ($23,515,045 a year), Cold Wave ($10,352,424) and Hurricane ($10,003,152).

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:
Expired on 2026-04-19
Plan:
Kent County Hazard Mitigation Plan (FEMA plan 106435)
Approved:
2021-04-20
Days since expiry:
164
Update underway:
FEMA tracker shows a plan approvable pending adoption

Until a new plan is approved, FEMA mitigation project grants (HMGP, FMA) need a FEMA exception (44 CFR 201.6(a)(3)).

Not yet eligible: adopt the approved plan.

What changed since your last plan (approved 2021-04-20)

New federal declarations:
1 new hazard declaration (1 incident): DR-4916-DE (Severe Winter Storm)
Storm Events records since approval:
83 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 1, SRL 9 (44 CFR 77.2); any definition: 42
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
Kent CountyCountyExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Bowers townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Camden townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Cheswold townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Clayton townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Dover cityCityExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Farmington townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164
Felton townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Frederica townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Harrington cityCityExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Houston townTownNo approved plan on record. Approvable pending adoption, not yet eligiblenonenonenoneFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Kenton townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Leipsic townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Little Creek townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Magnolia townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Milford cityCityExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Smyrna townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Woodside townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164
Wyoming townTownExpired on 2026-04-19Kent County Hazard Mitigation Plan (FEMA plan 106435)2021-04-202026-04-19-164FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.

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 2026-06-30countStorm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$22,892,809$465,521$156,715$23,515,04550
2Cold WaveRelatively HighRelatively High$1,666$8,726$10,342,031$10,352,42428Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
3HurricaneRelatively ModerateRelatively High$7,265,424$2,501,658$236,070$10,003,1525
4Heat WaveRelatively ModerateRelatively Moderateunder $1$3,886$2,634,025$2,637,91178
5TornadoRelatively ModerateRelatively Moderate$747,901$3,393$1,783,492$2,534,7858
6EarthquakeRelatively LowRelatively Low$1,446,989n/a$394,682$1,841,671Storm Events does not record earthquakes.
7DroughtRelatively ModerateRelatively Moderaten/a$1,287,206n/a$1,287,20653
8Coastal FloodingRelatively ModerateRelatively Moderate$1,116,242n/a$12,255$1,128,49840
9Strong WindRelatively ModerateRelatively Moderate$594,154$53,671$122,328$770,153386Includes 46 High Wind and 110 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
10LightningRelatively ModerateRelatively Moderate$32,316n/a$552,590$584,90515
11Winter WeatherRelatively HighRelatively High$133,077$118$400,407$533,602164Includes 4 Sleet records (outside NRI's Winter Weather definition).
12HailRelatively LowRelatively Low$8,159$226,794$633$235,58628
13Ice StormRelatively ModerateRelatively Moderate$120,690n/a$84,190$204,8800Declared 1 time; no Storm Events record of this type.
14WildfireRelatively LowRelatively Low$105,398$406$20,524$126,3293
15LandslideVery LowVery Low$328n/a$2$3300No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No 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 landslide and tsunami 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 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.

Coastal Flooding and 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 433 (Relatively Moderate, 83.9); tract 413 (Relatively Low, 76.2); tract 405.01 (Relatively Low, 75.1)
Hurricanetract 433 (Relatively High, 93.5); tract 429 (Relatively High, 91.9); tract 428.01 (Relatively High, 90.2)
Landslidetract 432.02 (Very Low, 77.6); tract 434 (Very Low, 76.1); tract 402.03 (Very Low, 71.2)
Tornadotract 433 (Relatively Moderate, 72.4); tract 410 (Relatively Moderate, 62.9); tract 407 (Relatively Moderate, 60.7)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 432.02 (Relatively Moderate, 89.5); tract 422.03 (Relatively Low, 86.9); tract 429 (Relatively Low, 82.4)

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 433 is Census Tract 433). 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
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)40 records, 1998 to 2025 (40 zone-level)Coastal Flood, 2012-10-29, $700,000 property; $0 crops (2012 dollars); NWS zone DEZ002Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill27 records, 1996 to 2022 (27 zone-level)1 day to 16 days (median 1.5 days); 22 with a recorded value16 consecutive days, 2003-01-14 to 2003-01-29, zone-levelCountywide (zone-level records).Cold/Wind Chill records from May to September (a frost night, not a cold wave) are counted but not used for the longest run.
Frost/Freeze (outside NRI's Cold Wave definition)crop damage1 record, 2007 (1 zone-level)No crop damage reported in 1 record.Countywide (zone-level records).
DroughtU.S. Drought Monitor scale (D0 to D4)53 records, 1997 to 2012 (53 zone-level)1 day to 288 days (median 21 days); 17 with a recorded value288 days (about 9.5 months), 2007-07-24 to 2008-05-06, a run of 11 consecutive Storm Events drought records, zone-levelDrought, 1999-09-01, property not reported; $8,000,000 crops (zone total, 1999 dollars)Countywide (zone-level records).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)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)36 records, 1968 to 20230.75 in to 1.75 in (median 0.94 in); 36 with a recorded value1.75 in hail, 1993-04-01; same size also recorded on 1968-07-02, 1975-06-19, 1980-06-03, 1983-08-11, 1991-04-24Hail, 2002-04-28, $100,000 property; crops not reported (2002 dollars)Event records naming jurisdictions in the plan: Dover city (6 records), Smyrna town (3 records), Clayton town (2 records), Bowers town (1 record), Farmington town (1 record), Felton town (1 record), Frederica town (1 record), Harrington city (1 record), Houston town (1 record), Milford city (1 record); and 1 more jurisdiction (see the Excel file).
Excessive Heat, Heatheat index (in event narratives)78 records, 1996 to 2025 (78 zone-level)1 day to 10 days (median 3 days); 55 with a recorded value10 consecutive days, 2002-08-11 to 2002-08-20, zone-levelCountywide (zone-level records).Heat records from November to March (unseasonable warmth, not a heat wave) are counted but not used for the longest run.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson5 records, 1996 to 2020 (5 zone-level)Strongest recorded: Tropical Storm record, 2003-09-18 to 2003-09-19, $8,500,000 property; crops not reported (2003 dollars); NWS zone DEZ002Countywide (zone-level records).Storm 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)50 records, 1996 to 2021 (2 zone-level)Flash Flood, 2004-07-12, $625,000 property; crops not reported (2004 dollars)Event records naming jurisdictions in the plan: Dover city (7 records), Clayton town (2 records), Harrington city (2 records), Houston town (2 records), Leipsic town (2 records), Little Creek town (2 records), Camden town (1 record), Felton town (1 record), Milford city (1 record), Smyrna town (1 record). Zone-level records (2) 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)15 records, 1997 to 2011Lightning, 2011-06-10, $200,000 property; $0 crops (2011 dollars)Event records naming jurisdictions in the plan: Smyrna town (3 records), Dover city (2 records), Milford city (2 records), Camden town (1 record), Cheswold town (1 record), Farmington town (1 record), Felton town (1 record), Frederica town (1 record), Harrington city (1 record), Little Creek town (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)156 records, 1996 to 2025 (156 zone-level)31 kt (36 mph) to 64 kt (74 mph) (median 41 kt (47 mph)); 130 with a recorded value64 kt (74 mph) measured gust, High Wind, 2008-12-31; NWS zone DEZ002High Wind, 2012-10-29, $132,000 property; $0 crops (zone total, 2012 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)286 records, 1958 to 202650 kt (58 mph) to 96 kt (110 mph) (median 50 kt (58 mph)); 241 with a recorded value96 kt (110 mph) estimated gust, Thunderstorm Wind, 2022-07-12; same speed and measurement basis also recorded on 2022-07-12Thunderstorm Wind, 1998-06-26, $1,500,000 property; crops not reported (1998 dollars)Event records naming jurisdictions in the plan: Smyrna town (21 records), Dover city (20 records), Clayton town (17 records), Harrington city (17 records), Felton town (11 records), Camden town (10 records), Milford city (9 records), Bowers town (4 records), Houston town (4 records), Kenton town (4 records); and 8 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)25 records, 1964 to 2026F/EF0 to F/EF2 (median F/EF1); 25 with a recorded valueF2 tornado, 1983-07-21, 1 mi path length (whole path, pre-1996), 20 yd wide, $250,000 property; crops not recorded (1983 dollars), 2 direct deaths, 9 direct injuriesTornado, 1988-06-07, $2,500,000 property; crops not recorded (1988 dollars)Event records naming jurisdictions in the plan: Farmington town (2 records), Frederica town (2 records), Harrington city (1 record), Houston town (1 record), Leipsic town (1 record), Milford city (1 record), Wyoming town (1 record).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).
Tsunaminone (count and damage only)0
Wildfireacres burned (local data)3 records, 2002 to 2005 (2 zone-level)No damage reported in 3 records.Event records naming jurisdictions in the plan: Farmington town (1 record). Zone-level records (2) apply countywide.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)164 records, 1996 to 2026 (164 zone-level)Winter Storm, 2010-02-09, $1,800,000 property; $0 crops (2010 dollars); NWS zone DEZ002Countywide (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, lightning and tsunami.

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 12 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 dollarsFlagsNotes
2026-05-292026-02-22DR-4916-DEMajor disasterSevere Winter StormWinter Weather$142,625.76new since last plan; within last 5 years
2020-10-022020-08-04DR-4566-DEMajor disasterTropical Storm IsaiasHurricane$1,580,715.04in the 12 months before plan approval
2020-04-052020-01-20DR-4526-DEMajor disasterCOVID-19 PandemicNon-natural, not counted$8,247,604.34
2020-03-132020-01-20EM-3449-DEEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4526
2012-11-162012-10-27DR-4090-DEMajor disasterHurricane SandyHurricane$2,934,052.91
2012-10-292012-10-27EM-3357-DEEmergencyHurricane SandyHurricaneno Public Assistance recordedsame incident as DR-4090
2011-09-302011-08-25DR-4037-DEMajor disasterHurricane IreneHurricane$954,745.18
2011-08-282011-08-26EM-3336-DEEmergencyHurricane IreneHurricane$5,805.52same incident as DR-4037
2010-03-312010-02-05DR-1896-DEMajor disasterSevere Winter Storms and SnowstormsWinter Weather$3,332,622.36
2005-09-302005-08-29EM-3263-DEEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2003-09-202003-09-18DR-1494-DEMajor disasterHurricane IsabelHurricane$484,186.03
2003-03-202003-02-14EM-3183-DEEmergencySnowWinter Weather$1,692,625.50
1996-01-121996-01-06DR-1082-DEMajor disasterBlizzard of 96 (Severe Snow Storm)Winter Weatherno Public Assistance recorded
1994-03-161994-02-08DR-1017-DEMajor disasterSevere Ice Storms and FloodingIce Storm; Inland Floodingno Public Assistance recorded
1993-03-181993-03-13EM-3111-DEEmergencySevere Snowfall & Winter StormWinter Weatherno Public Assistance recorded
1992-02-061992-01-04DR-933-DEMajor disasterSevere Coastal StormCoastal Floodingno Public Assistance recorded
1965-08-181965-08-18DR-207-DEMajor disasterWater ShortageDroughtno 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
1962-03-091962-03-09DR-126-DEMajor disasterSevere Storms, High Tides & FloodingInland Flooding (primary); also designated: Coastal 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.

Public Assistance filed under this county for declarations that do not list it: 5 rows, $2,035,995.46

Sources: 2, 3

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
DR-4627-DE2021-10-24Remnants of Hurricane IdaDelaware Department of Transportation$101,084.55
DR-1654-DE2006-07-05Severe Storms and FloodingDelaware Department of Transportation$325,209.65
DR-1572-DE2004-11-15Severe Storms, Tornadoes, and Flooding from the Remnants ofDelaware Department of Transportation$336,247.51
DR-1495-DE2003-09-23Tropical Storm HenriDelaware Department of Transportation$773,267.58
DR-1297-DE1999-09-21Hurricane Floyd Major Disaster DeclarationsDelaware Department of Transportation$500,186.17

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.

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
Coastal Flooding40606101996 to 2026-06-30
Cold Wave28101001996 to 2026-06-30Includes 1 Frost/Freeze record.
Drought53000101996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail36404001955 to 2026-06-30
Heat Wave78404001996 to 2026-06-30
Hurricane5010401996 to 2026-06-30
Ice Storm0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Inland Flooding50220101996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning15000001996 to 2026-06-30
Strong Wind442472341001955 to 2026-06-30Includes 46 High Wind and 110 Strong Wind records.
Tornado25231001950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire3000001996 to 2026-06-30
Winter Weather16417517511996 to 2026-06-30Includes 4 Sleet records.

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2022-07-12Thunderstorm Wind96 kt (110 mph) estimated gust$0 property; $0 crops (2022 dollars)0, 0VERNONnew since last plan; within last 5 yearsB1-c worst recorded: Thunderstorm Wind
2012-10-29Coastal Flood$700,000 property; $0 crops (zone total, 2012 dollars)0, 0NWS zone DEZ002 (KENT), zone-levelB1-c worst recorded: Coastal Flood, Storm Surge/Tide
2011-06-10Lightning$200,000 property; $0 crops (2011 dollars)0, 0FARMINGTONB1-c worst recorded: Lightning
2008-12-31High Wind64 kt (74 mph) measured gust$25,000 property; $0 crops (zone total, 2008 dollars)0, 0NWS zone DEZ002 (KENT), zone-levelB1-c worst recorded: High Wind and Strong Wind
2007-07-24Drought$0 property; $0 crops (zone total, 2007 dollars)0, 0NWS zone DEZ002 (KENT), zone-levelB1-c worst recorded: Drought
2007-02-06Extreme Cold/Wind Chill$0 property; $0 crops (zone total, 2007 dollars)1, 1NWS zone DEZ002 (KENT), zone-leveldeaths or injuries recorded
2006-08-01Heatdamage not reported2, 0NWS zone DEZ002 (KENT), zone-leveldeaths or injuries recorded
2004-07-12Flash Flood$625,000 property; crops not reported (2004 dollars)0, 0NORTH PORTIONB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2003-09-18Tropical Storm$8,500,000 property; crops not reported (zone total, 2003 dollars)0, 0NWS zone DEZ002 (KENT), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2003-01-14Cold/Wind Chilldamage not reported0, 0NWS zone DEZ002 (KENT), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2002-08-11Heatdamage not reported0, 0NWS zone DEZ002 (KENT), zone-levelB1-c worst recorded: Excessive Heat, Heat
1983-07-21TornadoF2, 1 mi path length (whole path, pre-1996), 20 yd wide$250,000 property; crops not recorded (1983 dollars)2, 9location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (939 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).

FEMA's declaration data list no tribal or special-area declarations for this state.

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
Coastal Flooding3.69events per year at a location (modeled)about 3.7 per year at a given location in the countyHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-fDescriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that.
Cold Wave0.795event-days per yearabout 0.795 days per yearLikelyStorm Events event-days in 12 of 30 years, 1996 to 2025 (40%)15.12005-11-12 to 2024-11-12 (19 years)countywide
Drought5.48event-days per yearabout 5.48 days per yearLikelyStorm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)1612000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00137annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.137%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.62events per yearabout 1.62 per yearHighly likelyFEMA annualized frequency (modeled)63.6 (modeled)1986 to 2023 (38 years)countywide
Heat Wave5.25event-days per yearabout 5.25 days per yearLikelyStorm Events event-days in 21 of 30 years, 1996 to 2025 (70%)84.42005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.109events per yearabout 1 in 9 yearsLikelyFEMA annualized frequency (modeled)381851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.428event-days per yearabout 0.428 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)231946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding1.39event-days per yearabout 1.39 days per yearLikelyStorm Events event-days in 20 of 30 years, 1996 to 2025 (66.7%)391996 to 2023 (28 years)see B1-f
Landslide0.0844events per year (modeled)about 1 in 12 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning33.6days per year with a strikeabout 33.6 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind4.68events per yearabout 4.68 per yearHighly likelyFEMA annualized frequency (modeled)1371986 to 2023 (38 years)countywide
Tornado0.346events 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)Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Wildfire0.00085annual probability at a locationchance a given location in the county burns in a year: 0.085%PossibleStorm Events records in 2 of 30 years, 1996 to 2025 (6.67%)not shownmodeledsee B1-f
Winter Weather7.78event-days per yearabout 7.78 days per yearHighly likelyStorm Events event-days in 28 of 30 years, 1996 to 2025 (93.3%)1482005-11-12 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 202510300.333
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025198306.6
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 202511300.367
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20256300.2
TornadoEF0-11996 to 20256300.2
TornadoEF2-31996 to 20251300.0333
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
Coastal Flooding30 of 4170.376.099.5Very High 1, Relatively Moderate 5, Relatively Low 9, Very Low 15, No Rating 11
Cold Wave41 of 4120.186.396.3Very High 2, Relatively High 31, Relatively Moderate 7, Relatively Low 1
Drought39 of 4172.888.597.0Relatively Moderate 14, Relatively Low 21, Very Low 4, No Rating 2
Earthquake41 of 4124.753.683.9Relatively Moderate 1, Relatively Low 30, Very Low 10
Hail41 of 411.632.676.3Relatively Moderate 3, Relatively Low 13, Very Low 25
Heat Wave41 of 412.465.686.3Relatively High 2, Relatively Moderate 27, Relatively Low 11, Very Low 1
Hurricane41 of 4164.683.693.5Relatively High 3, Relatively Moderate 31, Relatively Low 7
Ice Storm41 of 416.948.982.1Relatively Moderate 1, Relatively Low 33, Very Low 7
Inland Flooding41 of 410.946.787.3Relatively High 3, Relatively Moderate 16, Relatively Low 15, Very Low 7
Landslide41 of 4123.252.177.6Very Low 41
Lightning41 of 411.354.083.7Relatively High 2, Relatively Moderate 26, Relatively Low 12, Very Low 1
Strong Wind41 of 4117.551.687.1Relatively High 1, Relatively Moderate 15, Relatively Low 24, Very Low 1
Tornado41 of 4110.549.372.4Relatively Moderate 10, Relatively Low 30, Very Low 1
Tsunami0 of 41Insufficient Data 41
Wildfire40 of 4126.472.389.5Relatively Moderate 1, Relatively Low 27, Very Low 12, No Rating 1
Winter Weather41 of 4128.986.397.1Very High 1, Relatively High 30, Relatively Moderate 9, Relatively Low 1

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.

Hail: Agriculture is 96% 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
Kent CountyCountyExpired on 2026-04-19FMA RL 0, SRL 4; any 23no Public Assistance recorded0 total; 0 since its plan
Bowers townTownExpired on 2026-04-19FMA RL 1, SRL 2; any 9$7,6445 total; 0 since its plan
Camden townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0$19,545.5612 total; 2 since its plan
Cheswold townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0no Public Assistance recorded4 total; 0 since its plan
Clayton townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0$46,308.1521 total; 3 since its plan
Dover cityCityExpired on 2026-04-19FMA RL 0, SRL 0; any 1$1,587,673.7035 total; 1 since its planIncludes $15,600 for declarations not counted as hazard incidents (DR-4526-DE).
Farmington townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0no Public Assistance recorded7 total; 2 since its plan
Felton townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0$11,265.4414 total; 2 since its plan
Frederica townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 1$15,147.546 total; 1 since its plan
Harrington cityCityExpired on 2026-04-19FMA RL 0, SRL 0; any 1$47,324.1922 total; 6 since its plan
Houston townTownNo approved plan on record. Approvable pending adoption, not yet eligibleFMA RL 0, SRL 0; any 0no Public Assistance recorded8 total; no approved plan
Kenton townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0no Public Assistance recorded4 total; 1 since its plan
Leipsic townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0$5,785.506 total; 0 since its plan
Little Creek townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 1no Public Assistance recorded5 total; 0 since its plan
Magnolia townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0$4,133.601 total; 0 since its plan
Milford cityCityExpired on 2026-04-19FMA RL 0, SRL 2; any 7$154,388.3714 total; 2 since its planWhole community, including the part in Sussex County; in-county portion (county table): FMA RL 0, FMA SRL 2, NFIP RL 4, NFIP SRL 2, any category 4. Includes $25,662.62 for declarations not counted as hazard incidents (DR-4526-DE).
Smyrna townTownExpired on 2026-04-19FMA RL 0, SRL 1; any 1$121,523.0428 total; 4 since its plan
Woodside townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0no Public Assistance recorded1 total; 0 since its plan
Wyoming townTownExpired on 2026-04-19FMA RL 0, SRL 0; any 0$7,983.956 total; 0 since its plan

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

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 2021-04-20county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Coastal Flooding$1,093,423,399n/a4,797$1,116,242n/a$12,2550.102%$0
Cold Wave$36,690,422,486$503,838,800181,705$1,666$8,726$10,342,031under 0.0001%$0
Droughtn/a$124,277,403n/an/a$1,287,206n/a1.04% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$63,561,191,002n/a181,851$1,446,989n/a$394,6820.00228%
Hail$36,690,422,486$503,838,800181,705$8,159$226,794$633under 0.0001%$0
Heat Wave$36,690,422,486$503,838,800181,705under $1$3,886$2,634,025under 0.0001%
Hurricane$36,673,477,940$502,100,576181,566$7,265,424$2,501,658$236,0700.0198%
Ice Storm$36,690,422,486n/a181,705$120,690n/a$84,1900.000329%
Inland Flooding$36,667,019,139$34,144,5683,720$22,892,809$465,521$156,715n/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$91,071,428n/a389$328n/a$20.00036%
Lightning$36,690,422,486n/a181,705$32,316n/a$552,590under 0.0001%
Strong Wind$36,690,422,486$503,838,800181,705$594,154$53,671$122,3280.00162%$40,000
Tornado$36,690,422,486$503,838,800181,705$747,901$3,393$1,783,4920.00204%$0
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$1,724,484,536$62,800,83420,205$105,398$406$20,5240.00611%
Winter Weather$36,690,422,486$503,838,800181,705$133,077$118$400,4070.000363%$0$142,625.76

Totals since 2021-04-20 (Storm Events through 2026-06-30): 54 county-coded records, 29 with a damage value recorded (including $0), $40,000; 29 zone-level records, 22 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: $142,625.76 on 1 counted declaration.

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
Population181,705
Building value (total, not at risk)$36,690,422,486
Agriculture value (total, not at risk)$503,838,800
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$39,016,532
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)$16,739,944
Social vulnerability ratingRelatively Low
Community resilience ratingRelatively 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)1Severe repetitive loss, FMA definition (44 CFR 77.2)9
Repetitive loss, NFIP insurance definition41Severe repetitive loss, NFIP insurance definition8

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

Repeat-flood properties: county and state-level rows

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total194184214
of which: Kent County (unincorporated area)042232312
of which: Bowers town1292901
of which: Dover city0010100
of which: Frederica town0010100
of which: Harrington city0010100
of which: Little Creek town0010100
of which: Smyrna town0111100
of which: Milford city0242401
of which: Unknown (community ID Unknown in FEMA data)0010100
Statewide, no county in FEMA's file0010100

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Kent County100001042232312
Bowers town1000021292901
Camden town1000030000000
Cheswold town1000040000000
Clayton town1000050000000
Dover city1000060010100
Farmington town1000610000000
Felton town1000080000000
Frederica town1000090010100
Harrington city1000100010100
Houston town1000640000000
Kenton town1000130000000
Leipsic town1000140000000
Little Creek town1000150010100
Magnolia town1000650000000
Milford city1000420272701Whole community, including the part in Sussex County; in-county portion (county table): FMA RL 0, FMA SRL 2, NFIP RL 4, NFIP SRL 2, any category 4.
Smyrna town1000170111100
Woodside town1000700000000
Wyoming town1000200000000

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 residential063153213
2 to 4 unit residential0010100
other residential0000000
non-residential1393901
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 40 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). Kent County, DE: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 10001). Automated baseline. https://hazardplain.org/de/10001/ 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: [email protected]