34 flood insurance claims·$116,596 paid
Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Carbon County, Wyoming. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
In flood insurance claims here that reported a flood depth, the average was 3 inches.
Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.
Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.
The worst year was 1984, with 21 claims and $77,010 paid.
Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.
1 NOAA storm reports from Carbon County describe what happened, in the words of the forecasters who covered it. Read the Wyoming flood stories →
5 federal disaster declarations since 2011.
| Disaster | Began |
|---|---|
| Mullen Fire | Sep 25, 2020 |
| 316 Fire | Sep 5, 2020 |
| Severe Storms, Flooding, And Landslides | May 18, 2011 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
9 since 1996: 6 flash floods and 3 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flood | Aug 2, 2023 | — |
| Flash Flood | Aug 14, 2022 | — |
| Flash Flood | Aug 11, 2022 | — |
| Flash Flood | Jul 29, 2014 | — |
| Flash Flood | Jul 19, 2011 | — · 4 killed |
| Flood | Jun 7, 2010 | — |
| Flood | Jun 6, 2010 | — |
| Flash Flood | May 24, 1996 | — |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flood · Aug 2, 2023. A severe thunderstorm occurred over Cheyenne Wyoming in Laramie County on 1 August.
Flash Flood · Aug 14, 2022. With the monsoonal pattern continuing, heavy rainfall over the Mullen Fire Burn Scar area resulted in flooding of various streams and creeks. The Mullen Creek rose 3 feet at A Bar A Ranch in Carbon County from heavy rainfall upstream.
Flash Flood · Aug 11, 2022. Heavy rainfall occurred over portions of the Mullen Fire Burn Scar area leading to evidence of debris flow in the backcountry wilderness during the afternoon of the 11th.
Flash Flood · Jul 29, 2014. Slow moving thunderstorms produced very heavy rainfall with observed totals of two to four inches. Runoff on saturated grounds caused flash flooding across portions of Albany, Carbon and Platte counties.
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Carbon County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.