Alert archive / Iowa / Heat Advisories
Heat Advisories in Iowa, 2023
19 heat advisories in 2023. 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 2023. Tap one for its archive.
- Heat Advisories
- 19
- Busiest month
- July9 heat advisories
- Busiest day
- July 26, 20234 heat advisories
Over time
By month
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 24, 3:03 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 5 days |
| Jul 25, 1:54 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 3 days |
| Jul 25, 2:47 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 3 days |
| Jul 26, 4:14 AM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 16 hr |
| Jul 26, 2:04 PM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Jul 26, 2:19 PM CDT | Heat Advisory | OAX | Monona | 8 hr |
| Jul 26, 2:50 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 29 hr |
| Jul 28, 2:46 AM CDT | Heat Advisory | FSD | Dickinson, Lyon, Osceola | 17 hr |
| Jul 28, 3:28 AM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 16 hr |
| Aug 18, 2:12 PM CDT | Heat Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 31 hr |
| Aug 18, 2:18 PM CDT | Heat Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 25 more | 31 hr |
| Aug 18, 2:40 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Aug 18, 3:16 PM CDT | Heat Advisory | OAX | Monona | 30 hr |
| Aug 19, 2:36 AM CDT | Heat Advisory | OAX | Monona | 57 hr |
| Aug 19, 2:43 AM CDT | Heat Advisory | ARX | Clayton | 39 hr |
| Aug 19, 3:01 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 41 hr |
| Aug 20, 2:12 PM CDT | Heat Advisory | ARX | Chickasaw, Howard | 13 hr |
| Sep 1, 2:09 PM CDT | Heat Advisory | FSD | Lyon, Plymouth, Sioux, Woodbury | 53 hr |
| Sep 2, 11:50 AM CDT | Heat Advisory | ARX | Allamakee | 3 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lyon County5
- Monona County4
- Dickinson County4
- Osceola County4
- Plymouth County4
- Sioux County4
- Woodbury County4
- Chickasaw County4
- Howard County4
- Buena Vista County3
- Cherokee County3
- Clay County3
- Ida County3
- O'Brien County3
- Allamakee County3
- Clayton County3
- Fayette County3
- Floyd County3
- Mitchell County3
- Winneshiek County3
- Benton County2
- Buchanan County2
- Cedar County2
- Clinton County2
- Delaware County2
- Dubuque County2
- Jackson County2
- Jones County2
- Linn County2
- Muscatine County2
- Scott County2
- Black Hawk County2
- Boone County2
- Bremer County2
- Butler County2
- Calhoun County2
- Carroll County2
- Cerro Gordo County2
- Crawford County2
- Emmet County2
59 more counties
- Franklin County2
- Greene County2
- Grundy County2
- Hamilton County2
- Hancock County2
- Hardin County2
- Humboldt County2
- Jasper County2
- Kossuth County2
- Lucas County2
- Marion County2
- Marshall County2
- Palo Alto County2
- Pocahontas County2
- Sac County2
- Story County2
- Tama County2
- Wayne County2
- Webster County2
- Winnebago County2
- Worth County2
- Wright County2
- Fremont County1
- Harrison County1
- Mills County1
- Montgomery County1
- Page County1
- Pottawattamie County1
- Shelby County1
- Des Moines County1
- Henry County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Keokuk County1
- Lee County1
- Louisa County1
- Van Buren County1
- Washington County1
- Adair County1
- Adams County1
- Appanoose County1
- Audubon County1
- Cass County1
- Clarke County1
- Dallas County1
- Davis County1
- Decatur County1
- Guthrie County1
- Madison County1
- Mahaska County1
- Monroe County1
- Polk County1
- Poweshiek County1
- Ringgold County1
- Taylor County1
- Union County1
- Wapello County1
- Warren County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.