Casper, Wyoming: natural disaster risk
How exposed Casper is to floods, storms and other hazards, from FEMA and NOAA records for Natrona County.
Casper is a city of 58,839 people in Natrona County, Wyoming. FEMA's National Risk Index rates Natrona County relatively low for natural hazards overall, lower than most of the US. The costliest hazards there are inland flooding, cold wave and wildfire, with about $32.6 million in expected losses a year across the county. The weather service has logged 398 storm reports in the county since 1959, including 40 tornadoes and 29 floods. About 0.5% of homes in the county carry federal flood insurance.
Risk figures are for Natrona County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Casper
Full Natrona County report ›- 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.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
- Clear dry plants and debris within 5 feet of the house.
- Get home insurance quotes early; availability varies by area.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $19M | |
| Cold wave | $5M | |
| Wildfire | $3M | |
| Earthquake | $3M | |
| Winter weather | $1M | |
| Tornado | $875K | |
| Avalanche | $594K | |
| Lightning | $524K | |
| Hail | $217K | |
| Landslide | $84K | |
| Ice storm | $67K | |
| Heat wave | $54K |
Homes in Casper
Older homes and mobile homes usually take more damage in storms, floods and earthquakes. Ask about roof age, flood history and retrofits before you buy or rent.
Strongest tornadoes in Natrona County
Common questions about Casper
Is Casper safe from natural disasters?
Casper is in Natrona County, which FEMA's National Risk Index rates relatively low overall, lower than most of the US. The biggest hazards are inland flooding, cold wave, wildfire. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Casper?
By expected yearly losses in Natrona County, the top hazards are inland flooding (Moderate), cold wave (Moderate), wildfire (Moderate). Natrona County has been part of 6 federal disaster or emergency declarations for natural events.
Does Casper get tornadoes?
Yes. NOAA records list 40 tornadoes in Natrona County since 1950; the strongest was an F2 tornado on June 18, 1987. FEMA rates tornado risk in the county low.
Do I need flood insurance in Casper?
Standard home insurance does not cover floods. In Natrona County, about 0.5% of homes have federal flood insurance, and FEMA rates inland flooding risk moderate. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.