First published · Last updated
Severe Thunderstorm Warning issued September 18 at 5:43PM MDT until September 18 at 6:15PM MDT by NWS Grand Junction CO
The National Weather Service (NWS) Grand Junction issued a Severe Thunderstorm Warning on 2026-09-18 at 5:43PM MDT, valid until 6:15PM MDT, for the Grand Junction, Colorado area.
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
- 9/10
- Geographic reach
- 3/10
- Global importance
- 7/10
- Impact magnitude
- 4/10
- Positivity
- 2/10
- Urgency
- 9/10
Why it matters
An active severe thunderstorm warning indicates hazardous weather is imminent for the Grand Junction area during the warning period and may threaten people, property, and local travel.

