NWS Salt Lake City UTFF.W 0128September 16, 2026
Flash Flood Warning: San Juan, UT
The National Weather Service office in Salt Lake City issued a flash flood warning for San Juan in Utah, which was in force until 3:00 p.m. local time on September 16. It was the 128th flash flood warning the NWS office in Salt Lake City 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 3 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Salt Lake City UT
- Area
- San Juan
- State
- Utah
- Level
- Warning
- Issued
- 12:01 p.m. MDT, September 16, 2026
- Expires
- 3:00 p.m. MDT, September 16, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KSLC FF.W 0128
- 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
FFWSLC The National Weather Service in Salt Lake City has issued a * Flash Flood Warning for... San Juan County in southeastern Utah... * Until 300 PM MDT. * At 1201 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.25 and 0.75 inches of rain have fallen. The expected rainfall rate is 0.5 to 0.75 inches in 30 minutes. 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 normally dry washes, slot canyons, creeks and streams. * Some locations that will experience flash flooding include... Mainly rural areas of San Juan County including Sei Billikoon, Face Canyon Creek, West Canyon Creek, and other drainages and canyons between the Arizona border and Lake Powell.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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.