Wyoming, 2011
The year's recorded storm events, federal disaster declarations and flood insurance claims.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders.
Events by hazard
Includes events recorded by forecast zone. The state's yearly total for 2011 was 936 against 982 in 2010.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 19 Jul 2011 | Carbon | Flash Flood | — | — | 4 | 2 |
| 16 Apr 2011 | Forecast zone | Avalanche | — | — | 2 | — |
| 21 Dec 2011 | Forecast zone | Winter Weather | — | $25,000 | 1 | 3 |
| 21 Dec 2011 | Forecast zone | Winter Weather | — | — | 1 | — |
| 11 Feb 2011 | Forecast zone | High Wind | 82 mph | — | 1 | — |
| 31 Dec 2011 | Forecast zone | Avalanche | — | — | 1 | — |
| 31 Dec 2011 | Forecast zone | High Wind | 76 mph | — | — | 7 |
| 11 Jun 2011 | Goshen | Thunderstorm Wind | 70 mph | — | — | 2 |
| 29 May 2011 | Forecast zone | Avalanche | — | — | — | 2 |
| 15 Mar 2011 | Forecast zone | Avalanche | — | — | — | 1 |
| 24 Feb 2011 | Forecast zone | Avalanche | — | — | — | 1 |
| 24 Jun 2011 | Fremont | Flood | — | $415,000 | — | — |
| 1 Jul 2011 | Fremont | Flood | — | $100,000 | — | — |
| 24 Jun 2011 | Big Horn | Flood | — | $440,000 | — | — |
| 20 May 2011 | Sheridan | Flood | — | $520,000 | — | — |
| 14 May 2011 | Forecast zone | Debris Flow | — | $500,000 | — | — |
| 22 Jul 2011 | Big Horn | Flood | — | $351,500 | — | — |
| 28 Jun 2011 | Big Horn | Flood | — | $300,000 | — | — |
| 6 Oct 2011 | Weston | Thunderstorm Wind | 75 mph | $250,000 | — | — |
| 2 Jul 2011 | Weston | Hail | 1.75 in | $250,000 | — | — |
| 18 Apr 2011 | Forecast zone | Debris Flow | — | $237,000 | — | — |
| 13 Jun 2011 | Fremont | Lightning | — | $200,000 | — | — |
| 24 Jun 2011 | Big Horn | Flood | — | $150,000 | — | — |
| 15 May 2011 | Lincoln | Flood | — | $50,000 | — | — |
| 25 Jun 2011 | Lincoln | Flood | — | $167,000 | — | — |
| 10 Jun 2011 | Forecast zone | Debris Flow | — | $165,000 | — | — |
| 9 May 2011 | Weston | Flash Flood | — | $163,000 | — | — |
| 24 Jun 2011 | Park | Flood | — | $160,000 | — | — |
| 28 Jun 2011 | Big Horn | Flood | — | $145,000 | — | — |
| 27 Jul 2011 | Crook | Hail | 1.75 in | $100,000 | — | — |
| 29 Jun 2011 | Washakie | Flood | — | $100,000 | — | — |
| 12 Jun 2011 | Campbell | Hail | 1.25 in | $100,000 | — | — |
| 2 Jul 2011 | Lincoln | Flood | — | $75,000 | — | — |
| 1 Jul 2011 | Big Horn | Flood | — | $50,000 | — | — |
| 14 Jun 2011 | Forecast zone | Debris Flow | — | $50,000 | — | — |
| 12 Feb 2011 | Forecast zone | High Wind | 122 mph | $50,000 | — | — |
| 1 Jul 2011 | Sublette | Flood | — | $50,000 | — | — |
| 15 Aug 2011 | Lincoln | Hail | 1.00 in | $50,000 | — | — |
| 8 Jul 2011 | Crook | Thunderstorm Wind | 70 mph | $50,000 | — | — |
| 24 May 2011 | Weston | Flash Flood | — | $50,000 | — | — |
Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.
Federal disaster declarations in 2011
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 22 Jul 2011 | DR-4007 | Major disaster | Severe Storm | Severe Storms, Flooding, And Landslides | 15 |
Flood insurance claims with a 2011 date of loss
22 NFIP claims, 17 of them paid, for $188,279.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (1 Oct 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 1 Oct 2026.