NWS Grand Junction COSV.W 0037September 18, 2026
Severe Thunderstorm Warning: Garfield and Rio Blanco, CO
The National Weather Service office in Grand Junction issued a severe thunderstorm warning for Garfield and Rio Blanco in Colorado, which was in force until 5:30 p.m. local time on September 18. It was the 37th 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
In force for 35 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
- Garfield and Rio Blanco
- State
- Colorado
- Level
- Warning
- Issued
- 4:55 p.m. MDT, September 18, 2026
- Expires
- 5:30 p.m. MDT, September 18, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KGJT SV.W 0037
- Official source
- National Weather Service: the notice at its source
Severe Thunderstorm Warnings in Colorado since 2008Every warning type in Colorado
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... West central Garfield County in west central Colorado... Southwestern Rio Blanco County in northwestern Colorado... * Until 530 PM MDT. * At 454 PM MDT, a severe thunderstorm was located 27 miles north of Fruita, or 34 miles northwest of Grand Junction, moving north at 30 mph. HAZARD...Ping pong ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. * This severe thunderstorm will remain over mainly rural areas of west central Garfield and southwestern Rio Blanco Counties.
What the agency told people to do
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
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.
The record around this notice
- Severe Thunderstorm Warnings in Colorado since 2008628 a year
- Every warning type in Colorado
- Severe Thunderstorm Warning: what it means, and the states that get the most20,005 a year
- NWS notices, September 20262,824 in the month
- The latest from the National Weather Service
- Warning, watch or advisory: the three NWS levels