Montana Severe Flash Flood Warning | Effective 06/27/2026 14:02

Headline: 
Flash Flood Warning issued June 27 at 3:02PM MDT until June 27 at 6:00PM MDT by NWS Billings MT
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 27, 2026 - 2:02pm
Expires: 
June 27, 2026 - 5:00pm
Description: 
FFWBYZ The National Weather Service in Billings has issued a * Flash Flood Warning for... Central Big Horn County in south central Montana... * Until 600 PM MDT. * At 302 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 2 inches of rain have fallen. Additional rainfall amounts up to 2 inches 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 Central Big Horn County.
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. Remain alert for flooding of creeks, streams, and normally dry coulees even in areas not receiving rainfall downstream of the burn area. These can become raging killer currents in a matter of minutes even from distant rainfall upstream.
Area Description: 
Big Horn, MT
Forcast Office: 
NWS Billings MT