Sweetwater County weather alerts
There are no active weather alerts for Sweetwater County, WY right now.
Since 2016 the National Weather Service has issued about 470 alerts that included Sweetwater County, roughly 47 a year. The most common is the red flag warning (87 from 2016 to 2025). The last tornado warning was issued on May 27, 2018. 26 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Sweetwater County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Summit County, Daggett County, Lincoln County, Sublette County.
Sweetwater County alert history
Alert events that included Sweetwater County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Red Flag Warning | 87 | 16 | October 9, 2026 |
| Winter Weather Advisory | 76 | 3 | May 5, 2026 |
| Fire Weather Watch | 61 | 9 | October 9, 2026 |
| High Wind Warning | 50 | 5 | October 11, 2026 |
| High Wind Watch | 37 | 4 | October 12, 2026 |
| Severe Thunderstorm Warning | 35 | 7 | June 25, 2026 |
| Winter Storm Warning | 21 | 1 | May 18, 2026 |
| Winter Storm Watch | 18 | 0 | April 3, 2023 |
| Flood Advisory | 14 | 2 | September 18, 2026 |
| Freeze Warning | 13 | 1 | October 16, 2026 |
| Snow Squall Warning | 11 | 1 | April 16, 2026 |
| Freeze Watch | 10 | 1 | October 16, 2026 |
| Cold Weather Advisory | 7 | 0 | January 20, 2025 |
| Extreme Cold Warning | 5 | 0 | December 21, 2022 |
| Severe Thunderstorm Watch | 5 | 2 | June 20, 2026 |
| Flood Watch | 4 | 1 | July 21, 2026 |
| Dense Fog Advisory | 4 | 0 | February 1, 2024 |
| Blizzard Warning | 3 | 0 | April 3, 2023 |
| Flood Warning | 3 | 0 | March 13, 2017 |
| Flash Flood Warning | 3 | 0 | July 31, 2021 |
| Tornado Warning | 2 | 0 | May 27, 2018 |
| Extreme Cold Watch | 1 | 0 | December 21, 2022 |
| Heat Advisory | 0 | 1 | August 1, 2026 |
| Extreme Heat Watch | 0 | 1 | July 11, 2026 |
| Extreme Heat Warning | 0 | 1 | July 11, 2026 |
Tornado history in Sweetwater County
26 tornadoes have been recorded in Sweetwater County since 1950. That ranks 11 of 23 counties in Wyoming. The most recent was on July 1, 2025 (rated EF0).
Strongest tornadoes in Sweetwater County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 31, 1978 | F1 | Sweetwater County | 1 mi | 100 yd | 0 | 0 |
| April 14, 2000 | F1 | Sweetwater County | 0.5 mi | 50 yd | 0 | 0 |
| April 20, 2001 | F1 | Sweetwater County | 0.2 mi | 10 yd | 0 | 0 |
| September 9, 1973 | F1 | Sweetwater County | 0.1 mi | 10 yd | 0 | 0 |
| June 27, 1974 | F1 | Sweetwater County | 0.1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 1, 2025 | EF0 | Sweetwater County | 0.8 mi | 25 yd | 0 | 0 |
| June 23, 2023 | ? | Sweetwater County | 0.1 mi | 30 yd | 0 | 0 |
| May 28, 2018 | EF0 | Sweetwater County | 3.5 mi | 25 yd | 0 | 0 |
| May 26, 2017 | EF0 | Sweetwater County | 11.4 mi | 30 yd | 0 | 0 |
| July 7, 2015 | EF0 | Sweetwater County | 0.1 mi | 10 yd | 0 | 0 |
About Sweetwater County
- Population: 41,273 (2024 estimate)
- State: Wyoming
- NOAA Weather Radio SAME code: 056037 (how to use it)