NWS Grand Junction COFF.W 0121September 16, 2026
Flash Flood Warning: Grand, UT
The National Weather Service office in Grand Junction issued a flash flood warning for Grand in Utah, which was in force until 5:45 p.m. local time on September 16. It was the 121st flash flood warning the NWS office in Grand Junction issued in 2026. Utah had 33 flash flood warnings in September 2026, against 10 in an average September of 2008-2025 (Utah's flash flood warnings by year).
ExpiredWarning
In force for 2.9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Grand Junction CO
- Area
- Grand
- State
- Utah
- Level
- Warning
- Issued
- 2:54 p.m. MDT, September 16, 2026
- Expires
- 5:45 p.m. MDT, September 16, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KGJT FF.W 0121
- Official source
- National Weather Service: the notice at its source
Flash Flood Warnings in Utah since 2008Every warning type in Utah
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
FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... South Central Grand County in east central Utah... * Until 545 PM MDT. * At 254 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1.8 to 2.5 inches in 1 hour. Additional rainfall amounts of 0.8 to 1.2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Portions of Arches National Park, Canyonlands National Park, Utahraptor State Park, and Dead Horse Point State Park.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging currents in a matter of minutes, even from distant rainfall. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
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.