Montana Severe Flash Flood Warning | Effective 09/18/2026 18:31

Headline: 
Flash Flood Warning issued September 18 at 7:31PM MDT until September 18 at 10:15PM MDT by NWS Billings MT
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
September 18, 2026 - 6:31pm
Expires: 
September 18, 2026 - 9:15pm
Description: 
FFWBYZ The National Weather Service in Billings has extended the * Flash Flood Warning for... Southwestern Golden Valley County in central Montana... Southeastern Wheatland County in central Montana... * Until 1015 PM MDT. * At 731 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Mainly rural areas of Southwestern Golden Valley and Southeastern Wheatland Counties.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Do not drive on or attempt to cross flooded roads, find an alternate route. Roads and driveways may be damaged or washed out in places. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Area Description: 
Golden Valley, MT; Wheatland, MT
Forcast Office: 
NWS Billings MT
Sender: 
w-nws.webmaster@noaa.gov