First published Sep 19, 2026, 12:59:15 AM UTC · Last updated Sep 19, 2026, 12:59:15 AM UTC

Severe Thunderstorm Warning — NWS Cheyenne WY (issued Sep 18 6:36PM MDT)

Reported by U.S. National Weather Service Alerts NWS

The National Weather Service Cheyenne office issued a Severe Thunderstorm Warning on September 18 at 6:36 PM MDT, in effect until 7:15 PM MDT the same evening.

At a glance

Region: Wyoming

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Why it matters

Severe thunderstorms can produce damaging winds, hail, lightning, and heavy rain that threaten life, property, and local travel. Residents and travelers in the warned area should take protective actions while the warning is in effect.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 10/10How 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: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Severe Thunderstorm Warning issued September 18 at 6:36PM MDT until September 18 at 7:15PM MDT by NWS Cheyenne WY

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