Skip to main content
AREAZINENotices · US CA UK AU

NWS Billings MTFF.W 0018September 18, 2026

Flash Flood Warning: Golden Valley and Wheatland, MT

The National Weather Service office in Billings issued a flash flood warning for Golden Valley and Wheatland in Montana, which was in force until 9:00 p.m. local time on September 18. It was the 18th flash flood warning the NWS office in Billings issued in 2026. Montana had 4 flash flood warnings in September 2026, against 1 in an average September of 2008-2025 (Montana's flash flood warnings by year).

ExpiredWarning

Issued6:02 p.m. MDT, September 18, 2026
In force6:02 p.m. MDT, September 18, 2026
Expired9:00 p.m. MDT, September 18, 2026

In force for 3 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Billings MT
Area
Golden Valley and Wheatland
State
Montana
Level
Warning
Issued
6:02 p.m. MDT, September 18, 2026
Expires
9:00 p.m. MDT, September 18, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KBYZ FF.W 0018
Official source
National Weather Service: the notice at its source

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

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.

What the agency told people to do

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.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.