Wyoming Minor Flood Advisory | Effective 09/19/2026 17:14

Headline: 
Flood Advisory issued September 19 at 6:14PM MDT until September 19 at 9:15PM MDT by NWS Riverton WY
Event: 
Flood Advisory
Urgency: 
Expected
Effective: 
September 19, 2026 - 5:14pm
Expires: 
September 19, 2026 - 8:15pm
Description: 
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...South Central Fremont County in central Wyoming over the Weiser Knoll Burn Scar... * WHEN...Until 915 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 612 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 1.2 inches of rain have fallen. - This includes the following streams and drainages... Dry Twin Creek, West Fork Cottonwood Creek, Critnan Creek, Red Canyon Creek, Beaver Creek, North Fork Hall Creek, Stambaugh Creek, East Fork Cottonwood Creek, Twin Creek and Tweed Creek. Additional rainfall amounts of 0.5 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mainly rural areas of South Central Fremont County over the Weiser Knoll Burn Scar. - http://www.weather.gov/safety/flood
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move away from recently burned areas. Life-threatening flooding of creeks, roads and normally dry arroyos is likely. The heavy rains will likely trigger rockslides, mudslides and debris flows in steep terrain, especially in and around these areas.
Area Description: 
Fremont, WY
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov