Grant County, West Virginia
Natural disaster risk, federal disaster history and flood insurance facts.
Grant County, West Virginia has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 67% of US counties. It ranks 41st of 55 counties in West Virginia. The costliest hazards here are inland flooding, strong wind and cold waves. FEMA estimates about $8.2 million a year in expected losses, or roughly $745 per resident. Since 1977 it has been included in 19 federal disaster or emergency declarations for natural events (11 major disasters). The most recent was in January 2026 (severe winter storm). Only 30 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $2.9 million on 155 claims here, including $2.0 million for floods in 1996.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Grant County
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Secure outdoor furniture and trash bins before storms.
- Have trees near the house checked.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 57.9 | $6M | ||
| Strong wind | 65.1 | $644K | ||
| Cold wave | 28.4 | $294K | ||
| Hurricane | 64.6 | $258K | ||
| Tornado | 14.7 | $106K | ||
| Hail | 33.2 | $105K | ||
| Drought | 44.1 | $74K | ||
| Lightning | 19.7 | $52K | ||
| Earthquake | 28.6 | $49K | ||
| Wildfire | 51.5 | $40K | ||
| Heat wave | 17.0 | $35K | ||
| Winter weather | 33.9 | $27K | ||
| Landslide | 85.9 | $26K | ||
| Ice storm | 13.6 | $6K | ||
| Avalanche | 70.3 | $4K |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively high and community resilience is relatively low in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Grant County. 2020s bar runs to November 2026.
By type
Most recent
Show all 19
West Virginia also had 6 statewide declarations that did not name single counties.
Storm history since 1962
Tornado risk by county ›The National Weather Service has logged 206 storm reports in Grant County since 1962, with 2 deaths and 0 injuries and about $584,500 in reported damage. The strongest on record here was an F0 tornado on June 18, 1997 near Petersburg.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Jun 18, 1997 | F0 | Petersburg | 0 / 0 |
| Aug 9, 1998 | F0 | Petersburg | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Sep 6, 1996 | Flash Flood | Countywide | $275K |
| Sep 19, 2003 | Flash Flood | Countywide | $50K |
| Jun 18, 1997 | Tornado | Petersburg | $15K |
| Aug 9, 1998 | Tornado | Petersburg | $15K |
| Aug 8, 1996 | Flash Flood | W Portion | $10K |
| Aug 9, 2000 | Thunderstorm Wind | Countywide | $10K |
Source: NOAA Storm Events Database, county-based reports through Jul 4, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Hurricanes and tropical storms
Hurricane risk by county ›Since 1888, 0 hurricanes and 5 tropical storms have passed within 65 miles of the center of Grant County, 3 of them since 1950. The strongest was Tropical Storm Isabel (2003), with top winds near 60 mph about 63 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 19, 2003 | Isabel | Tropical storm, 60 mph | 63 mi |
| Aug 29, 1949 | Unnamed | Tropical storm, 60 mph | 64 mi |
| Aug 21, 1888 | Unnamed | Tropical storm, 50 mph | 51 mi |
| Aug 18, 1955 | Diane | Tropical storm, 50 mph | 64 mi |
| Sep 6, 1979 | David | Tropical storm, 45 mph | 50 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 19, 2003 | Isabel | Tropical storm, 60 mph | 63 mi |
| Sep 6, 1979 | David | Tropical storm, 45 mph | 50 mi |
| Aug 18, 1955 | Diane | Tropical storm, 50 mph | 64 mi |
| Aug 29, 1949 | Unnamed | Tropical storm, 60 mph | 64 mi |
| Aug 21, 1888 | Unnamed | Tropical storm, 50 mph | 51 mi |
Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.
Flood insurance in Grant County
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Grant County
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 5,670 housing units.
Compare in West Virginia
All 55 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Kanawha County | Inland flooding | |
| Berkeley County | Inland flooding | |
| Monongalia County | Inland flooding | |
| Cabell County | Inland flooding | |
| Wood County | Inland flooding | |
| Raleigh County | Inland flooding | |
| Harrison County | Inland flooding | |
| Mercer County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Preston County | 22 | |
| Garrett County, MD | 12 | |
| Randolph County | 21 | |
| Mineral County | 17 | |
| Hampshire County | 17 | |
| Hardy County | 20 | |
| Tucker County | 23 | |
| Pendleton County | 22 |
Common questions about Grant County
What is the biggest natural hazard in Grant County?
Inland flooding has the highest expected yearly losses in Grant County, about $6.5 million a year in FEMA's estimate. Strong wind is second at $644,342.
How many federal disasters has Grant County had?
Grant County has been included in 19 federal disaster or emergency declarations for natural events since 1977, including 11 major disasters. The most recent was Severe Winter Storm in January 2026.
Is Grant County a high-risk place to live?
Its overall rating is Very Low, 41st highest of 55 in West Virginia. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Grant County?
Standard home insurance does not cover flooding. About 1 in 200 homes in Grant County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Grant County had?
NOAA records list 2 tornadoes in Grant County since 1950. The strongest was an F0 tornado on June 18, 1997 near Petersburg. The weather service has also logged 20 hail reports and 60 floods here.
How many hurricanes have hit Grant County?
NOAA's hurricane records show 0 hurricanes and 5 tropical storms passing within 65 miles of the center of Grant County. The strongest was Tropical Storm Isabel (2003), with winds near 60 mph.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.