First published 9/19/2026, 9:17:16 AM · Last updated 9/19/2026, 9:17:16 AM

Flood Watch issued September 19 at 3:09AM MDT until September 19 at 6:00PM MDT by NWS Great Falls MT

The National Weather Service office in Great Falls, MT issued a Flood Watch effective Sept 19 at 3:09 AM MDT through Sept 19 at 6:00 PM MDT. Flooding is possible during this period in and around Great Falls, Montana.

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: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 6/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 8/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

A Flood Watch indicates conditions are favorable for flooding, which can threaten life, property, and local travel. Residents and travelers in the Great Falls area should monitor forecasts and be prepared to take protective actions if conditions worsen.

Location

Sources

Flood Watch issued September 19 at 3:09AM MDT until September 19 at 6:00PM MDT by NWS Great Falls MT

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