Planet Briefing

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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.

Location

Sources

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