Alert archive / Utah / Excessive Heat Warnings
Excessive Heat Warnings in Utah, 2021
5 excessive heat warnings in 2021. 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 excessive heat warnings reaches back to 2005.
Excessive Heat Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Excessive Heat Warnings
- 5
- Busiest month
- June3 excessive heat warnings
- Busiest day
- June 1, 20211 excessive 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 |
|---|---|---|---|---|
| Jun 1, 2:03 PM MDT | Excessive Heat Warning | SLC | Box Elder, Davis, Garfield, Kane, Salt Lake, San Juan and 4 more | 4 days |
| Jun 11, 2:37 PM MDT | Excessive Heat Warning | SLC | Box Elder, Carbon, Davis, Duchesne, Emery, Garfield and 10 more | 9 days |
| Jun 12, 2:34 PM MDT | Excessive Heat Warning | GJT | Grand, San Juan, Uintah | 6 days |
| Jul 5, 2:04 PM MDT | Excessive Heat Warning | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 15 more | 7 days |
| Sep 6, 3:04 AM MDT | Excessive Heat Warning | SLC | Iron, Kane, Washington | 66 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Kane County4
- San Juan County4
- Washington County4
- Box Elder County3
- Davis County3
- Garfield County3
- Salt Lake County3
- Tooele County3
- Utah County3
- Weber County3
- Iron County3
- Carbon County2
- Duchesne County2
- Emery County2
- Sevier County2
- Wayne County2
- Grand County1
- Uintah County1
- Beaver County1
- Cache County1
- Juab County1
- Millard County1
- Sanpete County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.