First published 9/19/2026, 3:30:15 AM · Last updated 9/19/2026, 3:30:15 AM

Flash Flood Warning — Billings, MT (issued Sep 18 9:11PM MDT)

The National Weather Service in Billings, MT issued a Flash Flood Warning starting Sep 18 at 9:11 PM MDT (2026-09-19T03:11:00Z) for the Billings area, in effect until 10:15 PM MDT (about 2026-09-19T04:15:00Z). Heavy rainfall may produce rapid flooding of low-lying areas and roadways.

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: 9/10How 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: 7/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 5/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 1/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

Flash flooding poses immediate danger to life, vehicles, and property, can close roads and interrupt travel, and requires people in affected areas to move to higher ground and avoid floodwaters.

Location

Sources

Flash Flood Warning issued September 18 at 9:11PM MDT until September 18 at 10:15PM MDT by NWS Billings MT

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