Headline:
Flash Flood Warning issued September 18 at 9:11PM MDT until September 18 at 10:15PM MDT by NWS Billings MT
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 18, 2026 - 8:11pm
Expires:
September 18, 2026 - 9:15pm
Description:
At 911 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 4.5 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 Northeastern
Sweet Grass 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; Sweet Grass, MT
Forcast Office:
NWS Billings MT
Sender:
w-nws.webmaster@noaa.gov