Sweetwater storm history
Storm events recorded in Sweetwater, Wyoming between 1950 and 2025.
183
Total events
25
Tornadoes
13
Hail
12
Floods
0
Deaths
$2.4M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A 63 mph wind gust was recorded at the Rock Springs airport from an outflow boundary.
Thunderstorm Wind Thunderstorm Wind
A 59 mph wind gust was recorded at the Rock Springs airport.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Measured gust of 66 mph.
Thunderstorm Wind Thunderstorm Wind
Tornado EF0 Tornado
The public reported a landspout tornado to the north of Highway 28 to the west of Farson, including a picture of the tornado in contact with the ground. The tornado remained over open country and caused no known damage.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
The WYDOT weather sensor at Farson reported wind gusts as high as 70 mph.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Flash Flood Flash Flood
Thunderstorm Wind Thunderstorm Wind
A 60 mph wind gust was reported at the Southwest Wyoming Regional Airport near Rock Springs.
Thunderstorm Wind Thunderstorm Wind
The wind sensor along Interstate 80 in Green River reported wind gusts to 59 mph.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A maximum wind gust of 62 mph occurred at the Sweetwater County airport.
Thunderstorm Wind Thunderstorm Wind
A 59 mph wind gust was reported at Farson.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A second round of thunderstorms moved across Sweetwater County and brought another round of strong wind gusts. A maximum wind gust of 62 mph occurred at the Sweetwater County airport.
Tornado EFU Tornado
Video from the public showed a narrow rope-shaped tornado northeast of Granger. The tornado touched down over open country, and caused no known damage. A rating of EFU was assigned because the brief tornado traversed land lacking damage indicators such as trees structures.
Hail Hail
The public reported quarter size hail to the northwest of Rock Springs.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A wind gust of 59 mph was reported at the Sweetwater County Airport near Rock Springs, WY.
Thunderstorm Wind Thunderstorm Wind
A 58 mph wind gust was reported near Wamsutter along Interstate 80.
Thunderstorm Wind Thunderstorm Wind
A 66 mph wind gust was reported at the Rock Springs Airport.
Thunderstorm Wind Thunderstorm Wind
The ASOS at the Southwest Wyoming Regional Airport reported a peak wind gust of 68 mph.
Flash Flood Flash Flood
Heavy rain and runoff from higher desert landscape produced flash flooding in sections of Rock Springs that had seen similar conditions on July 28.
Flash Flood Flash Flood
Runoff from higher desert terrain and rain falling on an urbanized landscape led to flash flooding across western portions of Rock Springs.
Thunderstorm Wind Thunderstorm Wind
A 58 mph wind gust was measured by ASOS at Southwest Wyoming Regional Airport.
Thunderstorm Wind Thunderstorm Wind
Very strong winds occurred as thunderstorms moved east of Rock Springs. The strongest wind gust recorded was 78 mph at the Sweetwater County Airport.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorms winds occurred at the Sweetwater County airport. The strongest wind gust was 59 mph.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts occurred at the Rock Springs, Wyoming airport. The maximum wind gust reported was 68 mph.
Thunderstorm Wind Thunderstorm Wind
The RAWS site at Snow Springs, Wyoming had a maximum wind gust of 67 mph.
Thunderstorm Wind Thunderstorm Wind
The wind sensor along Bitter Creek along Interstate 80 reported several wind gusts over 60 mph. The highest wind gust reported was 62 mph.
Thunderstorm Wind Thunderstorm Wind
A 62 mph wind gust was reported at the Sweetwater County airport near Rock Springs, Wyoming.
Thunderstorm Wind Thunderstorm Wind
Several wind gusts over 58 mph were recorded at Bitter Creek along Interstate 80. The highest recorded gust was 78 mph.
Thunderstorm Wind Thunderstorm Wind
The weather sensor at Bitter Creek along Interstate 80 had a wind gust to 76 mph.
Tornado EF0 Tornado
A tornado near Granger was well photographed by the general public and reported on local media. The tornado remained over open country and caused no damage.
Flash Flood Flash Flood
Flooding was reported in rural eastern Sweetwater County. No damage was reported.
Hail Hail
Quarter size hail was reported at a truck stop in Wamsutter.
Tornado EF0 Tornado
There were numerous reports of a tornado just north of Interstate 80. The tornado lifted and touched down numerous times as it moved eastward. A motor home had it's windshield blown out by strong winds, and an 84 mph wind gust was reported at the weather sensor near Tipton.
Flood Flood
The emergency manager reported flooding along the Blacks Fork River near Granger and Little American. A mobile home park along the river was evacuated for 2 days but little or no damage was reported.
Funnel Cloud Funnel Cloud
A rope funnel cloud was photographed over the higher terrain near Table Rock south of Interstate 80.
Thunderstorm Wind Thunderstorm Wind
The ASOS at Rock Springs-Sweetwater County Airport registered a peak wind gust of 59 mph from outflow generated by storms passing to the south and east of the airport.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 12 | 1 |
| 2024 | 5 | 0 |
| 2023 | 7 | 1 |
| 2022 | 5 | 0 |
| 2021 | 4 | 0 |
| 2020 | 7 | 0 |
| 2019 | 2 | 0 |
| 2018 | 3 | 1 |
| 2017 | 2 | 1 |
| 2016 | 3 | 0 |
| 2015 | 6 | 1 |
| 2014 | 6 | 1 |
| 2013 | 4 | 1 |
| 2012 | 1 | 0 |
| 2011 | 2 | 0 |
| 2010 | 8 | 0 |
| 2009 | 6 | 0 |
| 2008 | 2 | 0 |
| 2007 | 3 | 0 |
| 2006 | 1 | 0 |
| 2005 | 3 | 0 |
| 2004 | 3 | 0 |
| 2003 | 3 | 1 |
| 2002 | 5 | 0 |
| 2001 | 12 | 1 |
| 2000 | 8 | 1 |
| 1999 | 1 | 0 |
| 1998 | 5 | 0 |
| 1997 | 2 | 0 |
| 1996 | 3 | 0 |
| 1995 | 5 | 1 |
| 1994 | 2 | 0 |
| 1993 | 1 | 0 |
| 1992 | 5 | 1 |
| 1991 | 1 | 1 |
| 1990 | 5 | 2 |
| 1989 | 5 | 2 |
| 1988 | 2 | 0 |
| 1987 | 2 | 0 |
| 1982 | 1 | 1 |
| 1981 | 1 | 0 |
| 1980 | 1 | 0 |
| 1979 | 3 | 3 |
| 1978 | 3 | 1 |
| 1974 | 2 | 1 |
| 1973 | 3 | 1 |
| 1970 | 2 | 0 |
| 1969 | 2 | 0 |
| 1968 | 1 | 0 |
| 1960 | 1 | 1 |
| 1957 | 1 | 0 |