Alert archive / Iowa / Heat Advisories / 2021
Heat Advisories in Iowa, July 2021
11 heat advisories in July 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count in July 2021. Tap one for its archive.
- Heat Advisories
- 11
- Busiest day
- July 27, 20215 heat advisories
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 3:24 AM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 17 hr |
| Jul 23, 3:06 AM CDT | Heat Advisory | OAX | Fremont, Mills, Montgomery, Page | 41 hr |
| Jul 23, 3:17 AM CDT | Heat Advisory | DMX | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 10 more | 41 hr |
| Jul 23, 3:18 AM CDT | Heat Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 12 more | 41 hr |
| Jul 26, 3:11 AM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 42 hr |
| Jul 26, 3:18 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 4 days |
| Jul 27, 3:12 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 64 hr |
| Jul 27, 3:44 AM CDT | Heat Advisory | DMX | Calhoun, Carroll, Crawford, Emmet, Humboldt, Kossuth and 3 more | 16 hr |
| Jul 27, 2:22 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 31 hr |
| Jul 27, 3:04 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 52 hr |
| Jul 27, 3:10 PM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Buena Vista County3
- Cherokee County3
- Clay County3
- Dickinson County3
- Ida County3
- Lyon County3
- O'Brien County3
- Osceola County3
- Plymouth County3
- Sioux County3
- Woodbury County3
- Fremont County2
- Mills County2
- Montgomery County2
- Page County2
- Adams County2
- Appanoose County2
- Clarke County2
- Davis County2
- Decatur County2
- Lucas County2
- Mahaska County2
- Marion County2
- Monroe County2
- Poweshiek County2
- Ringgold County2
- Taylor County2
- Union County2
- Wapello County2
- Warren County2
- Wayne County2
- Benton County2
- Cedar County2
- Clinton County2
- Des Moines County2
- Henry County2
- Iowa County2
- Jackson County2
- Jefferson County2
- Johnson County2
59 more counties
- Jones County2
- Keokuk County2
- Lee County2
- Linn County2
- Louisa County2
- Muscatine County2
- Scott County2
- Van Buren County2
- Washington County2
- Calhoun County2
- Carroll County2
- Crawford County2
- Emmet County2
- Humboldt County2
- Kossuth County2
- Palo Alto County2
- Pocahontas County2
- Sac County2
- Harrison County1
- Monona County1
- Pottawattamie County1
- Shelby County1
- Buchanan County1
- Delaware County1
- Dubuque County1
- Adair County1
- Audubon County1
- Black Hawk County1
- Boone County1
- Bremer County1
- Butler County1
- Cass County1
- Cerro Gordo County1
- Dallas County1
- Franklin County1
- Greene County1
- Grundy County1
- Guthrie County1
- Hamilton County1
- Hancock County1
- Hardin County1
- Jasper County1
- Madison County1
- Marshall County1
- Polk County1
- Story County1
- Tama County1
- Webster County1
- Winnebago County1
- Worth County1
- Wright County1
- Allamakee County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
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.