Monongalia County, West Virginia: Natural Disaster Risk and History
Monongalia County, West Virginia has a Relatively Low natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025): a score of 71.5 out of 100, higher than about 71% of US counties, with landslides, inland (river and flash) flooding and lightning scoring highest of its 18 hazards and $36 million a year in expected losses.
OpenFEMA lists 19 federal disaster declarations that included Monongalia County since 1972, not counting 2 for COVID-19; the latest is EM-3639-WV (Severe Winter Storm, declared 24 January 2026). NOAA's Storm Prediction Center recorded 7 tornadoes touching Monongalia County from 1950 to 2025.
Live weather alerts for West Virginia All official warnings Latest FEMA declarations
Population 105,598 Buildings worth $25 billion Area 370 sq mi Risk rank in West Virginia 12 of 55 FIPS 54061
All 18 hazards, highest risk first
FEMA National Risk Index| Hazard | Risk rating | Score | Expected loss a year | How often | Events in record |
|---|---|---|---|---|---|
| Landslide | Relatively Moderate | 88.2 | $55,309 | about once every 1.2 years | — |
| Inland flooding | Relatively Moderate | 85.0 | $31 million | about 2.1 a year | 58 |
| Lightning | Relatively Moderate | 76.8 | $768,043 | about 45 a year | 128,624 strikes |
| Hail | Relatively Low | 64.4 | $531,653 | about 2.4 a year | 92 |
| Hurricane | Relatively Low | 63.2 | $351,300 | about once every 43 years | 8 |
| Strong wind | Relatively Moderate | 60.0 | $881,711 | about 1.7 a year | 64 |
| Ice storm | Relatively Low | 48.5 | $95,905 | about once every 4.3 years | 16 |
| Avalanche | Very Low | 47.4 | $524 | about once every 100 years | 0 |
| Tornado | Relatively Low | 46.0 | $1.3 million | about once every 14 years | 6 |
| Winter weather | Relatively Low | 44.5 | $64,586 | about 10 a year | 190 |
| Earthquake | Very Low | 44.4 | $242,405 | rarer than once in 1,000 years | — |
| Heat wave | Relatively Low | 41.5 | $296,346 | about 2 a year | 38 |
| Wildfire | Very Low | 30.8 | $17,888 | rarer than once in 1,000 years | — |
| Cold wave | Very Low | 23.1 | $340,960 | about 2.7 a year | 51 |
| Drought | Very Low | 21.3 | $6,769 | about 1.7 a year | 84 |
| Coastal flooding | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic activity | Not Applicable | — | — | — | — |
Score: FEMA's percentile among US counties that face the hazard (higher = more risk). Expected loss: FEMA's modelled average yearly loss to buildings, people (as a statistical value) and crops. How often: FEMA's annualised frequency of the hazard in the county; for some hazards it counts event-days, so it is a rough guide, not a forecast. "Not Applicable" means FEMA does not model that hazard here.
Federal disaster declarations 19
Most common: Severe Storm 7, Flood 4, Snowstorm 3, Hurricane 2.
| Decade | Declarations | Incident types |
|---|---|---|
| 1970s | 1 | Flood |
| 1980s | 2 | Flood ×2 |
| 1990s | 3 | Snowstorm ×2, Fire |
| 2000s | 5 | Severe Storm ×3, Hurricane, Flood |
| 2010s | 7 | Severe Storm ×4, Mud/Landslide, Hurricane, Snowstorm |
| 2020s | 1 | Winter Storm |
The last 10
Widest declarations that included Monongalia County
- Severe Winter Storm (2026, EM-3639-WV): 55 West Virginia counties designated.
- Hurricane Sandy (2012, EM-3358-WV): 55 West Virginia counties designated.
- Severe Storms (2012, EM-3345-WV): 55 West Virginia counties designated.
Named storms in its declarations: Hurricane Sandy (2012), Hurricane Katrina (2005), Tropical Storm Agnes (1972).
Not counted above: 2 COVID-19 ("Biological") declarations — in 2020 every US county was included. West Virginia also had 6 statewide declarations with no county list.
Tornado record since 1950 7
| Tornadoes touching the county | 7 |
|---|---|
| Strongest-rated | (E)F1 ×4 |
| Peak month | June (6) |
| Deadliest | 16 Jun 1982, F1, 2.5 mi path, 1 killed, 0 injured |
| Longest path | 16 Jun 1982, F1, 2.5 mi path |
| Most recent | 27 Jun 2018, EF0, 0.2 mi path |
| Deaths / injuries on those paths | 1 / 0 |
| Rating | (E)F0 | (E)F1 | (E)F2 | (E)F3 | (E)F4 | (E)F5 | Unrated |
|---|---|---|---|---|---|---|---|
| Count | 3 | 4 | 0 | 0 | 0 | 0 | 0 |
| Decade | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
|---|---|---|---|---|---|---|---|---|
| Count | 0 | 0 | 0 | 2 | 0 | 0 | 5 | 0 |
Deaths and injuries are for each tornado's whole path, which can run beyond this county. F-scale ratings before February 2007, Enhanced Fujita (EF) after.
How Monongalia County compares with its 5 nearest counties
| County | Distance | Overall risk | Score | Top hazard |
|---|---|---|---|---|
| Monongalia County (this page) | — | Relatively Low | 71.5 | Landslide |
| Marion County | 22 km | Relatively Low | 71.5 | Landslide |
| Greene County, PA | 29 km | Relatively Low | 55.1 | Landslide |
| Taylor County | 33 km | Very Low | 23.5 | Landslide |
| Preston County | 37 km | Very Low | 33.8 | Landslide |
| Fayette County, PA | 47 km | Relatively Moderate | 82.2 | Inland flooding |
Nearest by distance between county centres. Every county in West Virginia, ranked.
Vulnerability and resilience
| Social vulnerability | Very Low 18.4 |
|---|---|
| Community resilience | Very High 83.9 |
| Community risk factor | 0.87 |
| Expected annual loss, all hazards | $36 million |
FEMA scales expected losses up where social vulnerability is high (people who may find it harder to prepare, evacuate or recover) and down where community resilience is high. A factor above 1 raises the risk score. For social vulnerability a high rating is worse; for resilience a high rating is better.
Prepare for Monongalia County's main hazards
- Right now: National Weather Service alerts for West Virginia · all official warnings on Global Incident Tracker.
- Landslide: Landslides recorded
- Inland flooding: Flood safety: why shallow water kills · Floods recorded
- Lightning: Weather alerts for West Virginia
- Your property's flood zone: FEMA Flood Map Service Center ↗ — this page cannot tell you that.
- Official preparedness guidance: Ready.gov ↗ and your county emergency management office.
What this page shows, and what it misses
FEMA's National Risk Index rates a whole county against every other US county; it is a planning-level estimate for nationwide comparison, not a flood-zone map and not a substitute for a local risk assessment or the risk to one home. Declarations are presidential disaster, emergency and fire management declarations that named this county; state declarations and SBA or USDA designations are not included. Tornadoes are counted when the county is one of up to four listed on the track; 670 tornadoes that crossed a state line carry no county list in NOAA's file and are left out.
Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties - v1.20.0 (December 2025). Retrieved from https://services.arcgis.com/XG15cJAlne2vxtgt/ArcGIS/rest/services/National_Risk_Index_Counties/FeatureServer/0/query on November 2, 2026, 1:20 PM EST. This product uses the Federal Emergency Management Agency’s National Risk Index dataset API or downloadable datasets 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).
Federal Emergency Management Agency (FEMA), OpenFEMA Dataset: Disaster Declarations Summaries - v2, retrieved from https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries on November 2, 2026, 1:21 PM EST. 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).
Tornado records: NOAA/NWS Storm Prediction Center, Severe Weather Database, tornadoes 1950–2025 (https://www.spc.noaa.gov/wcm/data/1950-2025_actual_tornadoes.csv, downloaded 2 November 2026). Public domain; not endorsed by NOAA. Compiled by Global Incident Tracker.
Questions about Monongalia County
What natural disasters is Monongalia County, West Virginia most at risk from?
Monongalia County, West Virginia has a Relatively Low natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025): a score of 71.5 out of 100, higher than about 71% of US counties, with landslides, inland (river and flash) flooding and lightning scoring highest of its 18 hazards and $36 million a year in expected losses.
How many federal disaster declarations has Monongalia County had?
OpenFEMA lists 19 federal disaster declarations that included Monongalia County since 1972, not counting 2 for COVID-19; the latest is EM-3639-WV (Severe Winter Storm, declared 24 January 2026). Another 6 West Virginia declarations were made statewide without a county list.
How many tornadoes have hit Monongalia County?
NOAA's Storm Prediction Center recorded 7 tornadoes touching Monongalia County from 1950 to 2025. The deadliest: 16 Jun 1982, F1, 2.5 mi path, 1 killed, 0 injured (deaths and injuries are for the whole path).
Is the National Risk Index a flood zone map?
No. The National Risk Index is a planning-level estimate for a whole county, built for nationwide comparison. It does not tell you the flood zone or the risk of a single property: for that, look up the address on FEMA's Flood Map Service Center (msc.fema.gov) and ask your local floodplain manager.