Montana Severe Flash Flood Warning | Effective 07/14/2026 20:33

Headline: 
Flash Flood Warning issued July 14 at 9:33PM MDT until July 15 at 12:30AM MDT by NWS Glasgow MT
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 14, 2026 - 8:33pm
Expires: 
July 14, 2026 - 11:30pm
Description: 
FFWGGW The National Weather Service in Glasgow has issued a * Flash Flood Warning for... Southwestern Petroleum County in northeastern Montana... * Until 1230 AM MDT. * At 933 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 2 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, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Winnett, Flatwillow, Tiegen and Petrolia Lake. US 87 in the southwest corner of Petroleum County including where it crosses Flatwillow Creek is expected to have flash flooding.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
Area Description: 
Petroleum, MT
Forcast Office: 
NWS Glasgow MT