Automated baseline from FEMA and NOAA data, release 2026-10.

Harmon County, OK

Risk-assessment baseline packet. County FIPS 40057. Release 2026-10, data as of 2026-09-30.

Summary

Plan status as of 2026-09-30: Expired on 2019-01-29. Plan: Harmon County (FEMA plan 56223), approved 2014-01-29.

Since the plan was approved on 2014-01-29: 5 new hazard declarations (4 incidents) and 287 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): Drought ($1,315,288 a year), Strong Wind ($472,795) and Tornado ($426,361).

The packet's tables are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); the summaries below follow the same order.

Download the packet

Full packet as a web page. File manifest (checksums, source versions).

Plan clock

Expired on 2019-01-29

Plan:
Harmon County (FEMA plan 56223)
Approved:
2014-01-29
Days since expiry:
2,801
Update underway:
none recorded in FEMA's plan tracker

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

What changed since your last plan (approved 2014-01-29)

New federal declarations:
5 new hazard declarations (4 incidents): DR-4222-OK (Severe Storms, Tornadoes, Straight-Line Winds, and Flooding), DR-4256-OK (Severe Winter Storms and Flooding), DR-4373-OK (Wildfires), EM-3555-OK (Severe Winter Storm), DR-4587-OK (Severe Winter Storms); also 2 COVID-19 declarations (not counted)
Storm Events records since approval:
287 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 0, SRL 0 (44 CFR 77.2); any definition: 1
Repeat-flood change:
this release sets the baseline count.

Plan status for every jurisdiction listed in this county

7 jurisdictions. Each row is that jurisdiction's own plan clock. Notes include other approved plans FEMA lists for the same jurisdiction.

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryNotes
Harmon CountyCountyExpired on 2019-01-29Harmon County (FEMA plan 56223)2014-01-292019-01-29-2,801
Gould townTownExpired on 2019-01-29Harmon County (FEMA plan 56223)2014-01-292019-01-29-2,801
Hollis cityCityExpired on 2019-01-29Harmon County (FEMA plan 56223)2014-01-292019-01-29-2,801
Duke Public SchoolsSchool/School DistrictApproved, expires 2029-05-15Jackson County (FEMA plan 106491)2024-05-162029-05-15958This jurisdiction approved 2024-06-05.
Erick Public SchoolsSchool/School DistrictApproved, expires 2027-09-13Beckham County (FEMA plan 106682)2022-09-142027-09-13348
Hollis Public SchoolsSchool/School DistrictExpired on 2019-01-29Harmon County (FEMA plan 56223)2014-01-292019-01-29-2,801
Olustee-Eldorado Public SchoolsSchool/School DistrictApproved, expires 2029-05-15Jackson County (FEMA plan 106491)2024-05-162029-05-15958This jurisdiction approved 2024-05-22.

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

What the packet contains

Sections in FEMA checklist order; each heading names the review item its tables support. Full tables are in the downloads above.

Supports FEMA checklist item B1-a Hazard identification

14 of the 18 National Risk Index hazards apply here.

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.

Highest expected annual loss (NRI, modeled): Drought, Strong Wind and Tornado.

Not covered by NRI (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 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

  • Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather: affects the whole county; national data give no location within it.
  • Earthquake, Hurricane, Landslide, Tornado and Wildfire vary within the county; the packet lists the highest-rated census tracts for each.
  • 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.

Supports FEMA checklist item B1-c Hazard extent

Storm Events records for 12 of the 21 NOAA event-type groups mapped to the 18 hazards, with the scale, observed range and worst recorded event for each; the others say which local data are needed.

Worst recorded tornado, hail and thunderstorm wind (the three event types on record since the 1950s; the packet has every group):

  • Hail: 4.25 in hail, 2006-05-09
  • Thunderstorm Wind: 86 kt (99 mph) measured gust, Thunderstorm Wind, 2022-05-31
  • Tornado: F2 tornado, 1965-05-06, 16.9 mi path length (whole path, pre-1996), 33 yd wide, $250,000 property (pre-1996 NOAA value, recorded in damage ranges); crops not recorded (1965 dollars), 2 direct injuries

Supports FEMA checklist item B1-d Previous occurrences

Federal declarations for this area: 20 declarations covering 15 separate hazard incidents counted in this packet; each with type, dates and county Public Assistance dollars.

New since the last plan (approved 2014-01-29): DR-4587-OK, EM-3555-OK, DR-4530-OK, EM-3462-OK, DR-4373-OK, DR-4256-OK and DR-4222-OK.

7 statewide declarations listed separately.

Hazards with no Storm Events record and no federal declaration are stated as such (7 of 18).

Storm Events history: 789 records (notable ones in the PDF, all of them in the Excel file).

Supports FEMA checklist item B1-e Probability of future events

FEMA annualized frequency (modeled) for each hazard, with a descriptor from a scale defined in the packet.

  • Highly likely: Hail, Lightning and Strong Wind
  • Likely: Cold Wave, Drought, Heat Wave, Ice Storm, Inland Flooding, Tornado and Winter Weather
  • Possible: Landslide
  • Unlikely: Earthquake, Hurricane and Wildfire

Historical frequency by intensity band (tornado, hail, wind): 9 bands from Storm Events.

Supports FEMA checklist item B1-f Hazards that vary across jurisdictions

Range of census tract risk scores within the area for 14 of the 18 hazards (1 tract; rated tracts only).

3 jurisdictions: plan clock, repeat-flood count, Public Assistance dollars and event records naming the place (starting figures from federal data).

County Public Assistance in B1-d also includes applicants filed under the county that are not matched to a jurisdiction row here (for example county offices and boards filed under their own names, such as a sheriff's office or a conservation board, and 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

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

Storm Events damage since 2014-01-29: $115,000 in county-coded records (111 records); $516,500 reported for the zone (176 zone records). Data through 2026-06-30; nominal dollars.

Local data needed

To gather:

  • 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

Supports FEMA checklist item B2-a Vulnerability (county context)

Population 2,486; building value $657,934,521 and agriculture value $85,213,988 (total, not at risk).

National Risk Index rating Very Low; social vulnerability Very High; community resilience Very Low.

Supports FEMA checklist item B2-c Repetitive loss properties

Repetitive-loss properties, FMA definition (44 CFR 77.2): 0 repetitive loss, 0 severe repetitive loss. NFIP insurance definition: 1 and 0.

Mitigated 0; insured 0; NFIP data as of 2026-08-02. Counts by occupancy group and for each jurisdiction are in the packet.

Releases

Each release is dated; this is release 2026-10. It was first published 2026-09-30; its files do not change except for dated corrections listed on the changelog (corrected 2026-10-01, 2026-10-02, 2026-10-03, 2026-10-13, 2026-10-17). Later releases will be listed here with what changed between them. All releases.

Cite this

Hazard Plain (2026). Harmon County, OK: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 40057). Automated baseline. https://hazardplain.org/ok/40057/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Source citations for the plan's bibliography (11)

How this packet is built: methods and sources