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NWS Grand Junction COSV.W 0038September 18, 2026

Severe Thunderstorm Warning: Moffat, Rio Blanco and Uintah, CO and UT

The National Weather Service office in Grand Junction issued a severe thunderstorm warning for Moffat, Rio Blanco and Uintah in Colorado, Utah, which was in force until 5:45 p.m. local time on September 18. It was the 38th severe thunderstorm warning the NWS office in Grand Junction issued in 2026. Colorado had 122 severe thunderstorm warnings in September 2026, against 27 in an average September of 2008-2025 (Colorado's severe thunderstorm warnings by year).

ExpiredWarning

Issued5:15 p.m. MDT, September 18, 2026
In force5:15 p.m. MDT, September 18, 2026
Expired5:45 p.m. MDT, September 18, 2026

In force for 30 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Grand Junction CO
Area
Moffat, Rio Blanco and Uintah
State
Colorado
Level
Warning
Issued
5:15 p.m. MDT, September 18, 2026
Expires
5:45 p.m. MDT, September 18, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KGJT SV.W 0038
Official source
National Weather Service: the notice at its source

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SVRGJT The National Weather Service in Grand Junction has issued a * Severe Thunderstorm Warning for... Southwestern Moffat County in northwestern Colorado... Northwestern Rio Blanco County in northwestern Colorado... Northeastern Uintah County in northeastern Utah... * Until 545 PM MDT. * At 514 PM MDT, a severe thunderstorm was located over Dinosaur, or 29 miles southeast of Vernal, moving northeast at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Dinosaur, Artesia, and Blue Mountain.

What the agency told people to do

For your protection move to an interior room on the lowest floor of a building.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.