Natural hazards · Dewey

Dewey, OK natural hazards

Most of the natural-hazard damage FEMA expects in Dewey comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 30 claims here since 1986. 9 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Dewey?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Dewey to be higher than in 76% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding43%Tornadoes26%Cold waves10%Heat waves9%Everything else13%

By hazard

What Dewey faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

43% of expected damage

Well above average · higher than 84% of U.S. places

Recorded about once a year in the area

Tornadoes

26% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about once every 18 years in the area

Cold waves

10% of expected damage

Below average · higher than 42% of U.S. places

Recorded about 2 times a year in the area

Heat waves

9% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about 24 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic activity

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Dewey flood?

Every paid claim on a federal flood insurance policy in Dewey, from FEMA’s records.

30paid claims since 1986

$797Kpaid to owners

4homes flooded more than once

19862026

Biggest named events

Thunderstorms: 1 claim, $9K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (3) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Dewey isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Washington County.

What’s been done with FEMA grants

43storm safe rooms built

Disasters that hit Dewey

9 federal disasters brought FEMA money here

Disasters the President declared that paid out in Dewey itself: aid to households, or repair grants to the City of Dewey.

Brought FEMA money into DeweyDeclared for Washington County only

2024

Severe Storms, Straight-Line Winds, Tornadoes, and Flooding

6 households applied for aid $2K aid approved

2019

Severe Storms, Straight-Line Winds, Tornadoes, and Flooding

11 households applied for aid $296 aid approved

2011

Severe Winter Storm and Snowstorm

$5K to the City of Dewey for repairs

2010

Severe Winter Storm

$5K to the City of Dewey for repairs

2009

Severe Winter Storm

$6K to the City of Dewey for repairs

2007

Severe Winter Storms

$21K to the City of Dewey for repairs

2007

Severe Storms, Flooding, and Tornadoes

24 households applied for aid $33K aid approved $30K to the City of Dewey for repairs

2003

Severe Storms and Tornadoes

4 households applied for aid $8K aid approved

2002

Severe Winter Ice Storm

$1K to the City of Dewey for repairs

Washington County has had 25 natural disasters declared since 1953, most often severe storms and ice storms.

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Dewey is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Dewey’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Dewey. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.