First published · Last updated
Flash Flood Warning — NWS Grand Junction CO
National Weather Service issued a Flash Flood Warning on September 18 at 7:32 PM MDT (2026-09-19T01:32:00Z) effective until September 18 at 9:45 PM MDT (2026-09-19T03:45:00Z) 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
- 6/10
- Impact magnitude
- 6/10
- Positivity
- 2/10
- Urgency
- 9/10
Why it matters
Flash flood warnings indicate imminent or occurring rapid flooding that can threaten life, property, and travel. Residents and travelers in the Grand Junction area should take immediate precautions and avoid flooded roadways.

