First published · Last updated
Flash Flood Warning — NWS Flagstaff AZ (Sep 18)
The National Weather Service in Flagstaff issued a Flash Flood Warning on September 18 at 3:50PM MST (published 2026-09-18T22:50:00Z) in effect until 5:15PM MST for the Flagstaff, Arizona area.
Categories: severe-weather-and-natural-disasters
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
- 9/10
Why it matters
Flash floods can develop rapidly and pose immediate threats to life, property, and travel. People in the warned area should seek higher ground and avoid driving through flooded roadways.

