First published · Last updated
Flash Flood Watch issued September 19 at 3:09AM MDT until September 20 at 12:00AM MDT by NWS Great Falls MT
The National Weather Service in Great Falls, MT issued a Flash Flood Watch effective Sep 19 3:09 AM MDT through Sep 20 12:00 AM MDT for the Great Falls, Montana area, indicating conditions may produce flash flooding.
Categories: severe-weather-and-natural-disasters, travel-and-transportation
Generated scores
Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.
- Confidence
- 9/10
- Geographic reach
- 3/10
- Global importance
- 7/10
- Impact magnitude
- 5/10
- Positivity
- 1/10
- Urgency
- 8/10
Why it matters
Flash floods can develop rapidly, endangering life and property and causing hazardous travel conditions. Residents and travelers in the Great Falls area should monitor forecasts and avoid flooded roads.

