Montana flash flood warnings
There are no flash flood warnings in Montana right now. The last one was issued on September 19, 2026.
Flash flooding is happening or about to happen. Move to higher ground and never drive through flooded roads.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Active flash flood warnings in Montana
None right now. Other active alerts in Montana: none.
Flash Flood Warnings in Montana by year
Montana averaged 16.4 flash flood warnings per year from 2016 to 2025, and has had 42 so far in 2026. The most recent was issued on September 19, 2026.
Counties with the most flash flood warnings
What a flash flood warning means
A flash flood warning means water is rising fast, usually within six hours of heavy rain, a dam or levee failure, or an ice jam. Small streams, low-water crossings, urban underpasses and burn scars from wildfires are the most dangerous places. A "flash flood emergency" is the highest level and is used when severe threat to life and catastrophic damage are occurring.
More about flash flood warnings and the national map →
What to do
- Get to higher ground immediately if you are in a flood-prone area.
- Turn around, do not drown: never drive or walk into flood water.
- Stay away from creeks, drainage ditches and low-water crossings.
- At night, be extra careful; it is harder to see that a road is flooded.
More Montana alerts
- Tornado Warnings
- Severe Thunderstorm Warnings
- Flood Warnings
- Flood Watches
- Winter Storm Warnings
- Winter Storm Watches
- Winter Weather Advisories
- Blizzard Warnings
- Extreme Cold Warnings
- Cold Weather Advisories
- Heat Advisories
- High Wind Warnings
- Wind Advisories
- Red Flag Warnings
- Dense Fog Advisories
- All Montana alerts