NWS Grand Junction COFF.W 0115September 15, 2026
Flash Flood Warning: San Miguel, CO
The National Weather Service office in Grand Junction issued a flash flood warning for San Miguel in Colorado, which was in force until 5:45 p.m. local time on September 15. It was the 115th flash flood warning the NWS office in Grand Junction issued in 2026. Colorado had 31 flash flood warnings in September 2026, against 8 in an average September of 2008-2025 (Colorado's flash flood warnings by year).
ExpiredWarning
In force for 3.1 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
- San Miguel
- State
- Colorado
- Level
- Warning
- Issued
- 2:42 p.m. MDT, September 15, 2026
- Expires
- 5:45 p.m. MDT, September 15, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KGJT FF.W 0115
- Official source
- National Weather Service: the notice at its source
Flash Flood 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
FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... Eastern San Miguel County in southwestern Colorado... * Until 545 PM MDT. * At 242 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Sawpit, Fall Creek and Placerville. This includes the following streams and drainages... Fall Creek, Deep Creek, Big Bear Creek, Muddy Creek, Saltado Creek, South Fork San Miguel River, Dolores River, Specie Creek, San Miguel River, Leopard Creek and Alder Creek.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. 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. Highway 145 is prone to rockslides and mudslides in heavy rain. Stay alert for rocks and debris on roads, and avoid driving on flooded roads. Find an alternate route.
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
- Flash Flood Warnings in Colorado since 2008116 a year
- Every warning type in Colorado
- Flash Flood Warning: what it means, and the states that get the most3,924 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