Alert archive / Utah / Extreme Heat Warnings
Extreme Heat Warnings in Utah, 2026
7 extreme heat warnings in 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of extreme heat warnings reaches back to 2005.
Extreme Heat Warnings by county
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Extreme Heat Warnings
- 7
- Busiest month
- July5 extreme heat warnings
- Busiest day
- July 9, 20262 extreme heat warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 10:55 AM MDT | Extreme Heat Warning | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 18 more | 5 days |
| Jul 9, 12:30 PM MDT | Extreme Heat Warning | GJT | Grand, San Juan, Uintah | 4 days |
| Jul 25, 9:31 AM MDT | Extreme Heat Warning | SLC | Garfield, Kane, San Juan | 62 hr |
| Jul 29, 11:53 AM MDT | Extreme Heat Warning | SLC | Davis, Emery, Garfield, Iron, Kane, Salt Lake and 7 more | 4 days |
| Jul 30, 11:53 AM MDT | Extreme Heat Warning | GJT | Grand, San Juan | 4 days |
| Aug 2, 8:42 PM MDT | Extreme Heat Warning | SLC | Emery, Garfield, Iron, Kane, San Juan, Sevier and 2 more | 24 hr |
| Aug 5, 9:46 AM MDT | Extreme Heat Warning | SLC | Box Elder, Carbon, Davis, Emery, Garfield, Iron and 11 more | 4 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Juan County7
- Garfield County5
- Kane County5
- Emery County4
- Iron County4
- Sevier County4
- Washington County4
- Wayne County4
- Davis County3
- Salt Lake County3
- Tooele County3
- Utah County3
- Weber County3
- Box Elder County2
- Carbon County2
- Juab County2
- Millard County2
- Grand County2
- Beaver County1
- Cache County1
- Duchesne County1
- Morgan County1
- Sanpete County1
- Summit County1
- Wasatch County1
- Uintah County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.