San Juan County weather alerts
There are no active weather alerts for San Juan County, UT right now.
Since 2016 the National Weather Service has issued about 312 alerts that included San Juan County, roughly 31 a year. The most common is the flood advisory (111 from 2016 to 2025). The last tornado warning was issued on September 13, 2025. 7 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include San Juan County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Coconino County, Montrose County, Montezuma County, Dolores County.
San Juan County alert history
Alert events that included San Juan County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 111 | 7 | November 1, 2026 |
| Severe Thunderstorm Warning | 95 | 11 | September 15, 2026 |
| Flash Flood Warning | 90 | 34 | October 22, 2026 |
| Tornado Warning | 5 | 0 | September 13, 2025 |
| Severe Thunderstorm Watch | 4 | 1 | October 22, 2026 |
| Snow Squall Warning | 4 | 0 | February 27, 2024 |
| Flood Warning | 3 | 13 | November 2, 2026 |
Tornado history in San Juan County
7 tornadoes have been recorded in San Juan County since 1950. That ranks 9 of 29 counties in Utah. The most recent was on September 13, 2025 (rated EF2).
Strongest tornadoes in San Juan County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 13, 2025 | EF2 | San Juan County | 1.1 mi | 50 yd | 0 | 0 |
| July 12, 2025 | EF2 | San Juan County | 0.1 mi | 100 yd | 0 | 0 |
| June 6, 2015 | EF0 | San Juan County | 1.2 mi | 50 yd | 0 | 0 |
| June 21, 2024 | ? | San Juan County | 0.5 mi | 20 yd | 0 | 0 |
| September 13, 2025 | ? | San Juan County | 0.3 mi | 25 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 13, 2025 | EF2 | San Juan County | 1.1 mi | 50 yd | 0 | 0 |
| September 13, 2025 | ? | San Juan County | 0.3 mi | 25 yd | 0 | 0 |
| July 12, 2025 | EF2 | San Juan County | 0.1 mi | 100 yd | 0 | 0 |
| June 5, 2025 | ? | San Juan County | 0.1 mi | 10 yd | 0 | 0 |
| July 20, 2024 | ? | San Juan County | 0.1 mi | 10 yd | 0 | 0 |
About San Juan County
- Population: 14,601 (2024 estimate)
- State: Utah
- NOAA Weather Radio SAME code: 049037 (how to use it)