Montana Severe Flash Flood Warning | Effective 09/18/2026 17:02

Headline: 
Flash Flood Warning issued September 18 at 6:02PM MDT until September 18 at 9:00PM MDT by NWS Billings MT
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
September 18, 2026 - 5:02pm
Expires: 
September 18, 2026 - 8:00pm
Description: 
FFWBYZ The National Weather Service in Billings has issued a * Flash Flood Warning for... Southwestern Golden Valley County in central Montana... Southeastern Wheatland County in central Montana... * Until 900 PM MDT. * At 602 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.7 and 1.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. 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, urban areas, 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.
Area Description: 
Golden Valley, MT; Wheatland, MT
Forcast Office: 
NWS Billings MT
Sender: 
w-nws.webmaster@noaa.gov