Alert archive / Iowa / Heat Advisories
Heat Advisories in Iowa, 2025
39 heat advisories in 2025. 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 2025. Tap one for its archive.
- Heat Advisories
- 39
- Busiest month
- July19 heat advisories
- Busiest day
- July 22, 20258 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 |
|---|---|---|---|---|
| Jun 19, 1:55 PM CDT | Heat Advisory | DMX | Boone, Clarke, Dallas, Decatur, Hamilton, Hancock and 13 more | 4 days |
| Jun 20, 2:37 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 4 days |
| Jun 20, 2:51 AM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 4 days |
| Jun 20, 3:21 AM CDT | Heat Advisory | DMX | Appanoose, Black Hawk, Bremer, Butler, Cerro Gordo, Davis and 9 more | 4 days |
| Jun 26, 3:05 AM CDT | Heat Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jefferson, Johnson and 8 more | 16 hr |
| Jul 20, 2:19 PM CDT | Heat Advisory | FSD | Cherokee, Ida, Lyon, O'Brien, Osceola, Plymouth and 2 more | 30 hr |
| Jul 20, 2:40 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 23 hr |
| Jul 22, 3:02 AM CDT | Heat Advisory | DMX | Appanoose, Davis, Wapello | 16 hr |
| Jul 22, 3:02 AM CDT | Heat Advisory | DVN | Benton, Cedar, Des Moines, Henry, Iowa, Jefferson and 9 more | 16 hr |
| Jul 22, 3:23 AM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 17 hr |
| Jul 22, 1:24 PM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 31 hr |
| Jul 22, 2:02 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 30 hr |
| Jul 22, 2:13 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 3 more | 30 hr |
| Jul 22, 2:17 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 53 hr |
| Jul 22, 2:17 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 30 hr |
| Jul 26, 1:45 PM CDT | Heat Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 11 more | 31 hr |
| Jul 26, 1:55 PM CDT | Heat Advisory | OAX | Shelby | 46 hr |
| Jul 26, 2:04 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 41 more | 30 hr |
| Jul 27, 1:44 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 30 hr |
| Jul 27, 2:15 PM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Jul 27, 2:43 PM CDT | Heat Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 8 more | 29 hr |
| Jul 28, 2:11 PM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 30 hr |
| Jul 28, 2:34 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 29 hr |
| Jul 28, 2:42 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 29 hr |
| Aug 7, 2:48 AM CDT | Heat Advisory | FSD | Plymouth, Woodbury | 17 hr |
| Aug 7, 1:31 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 29 hr |
| Aug 7, 2:15 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Aug 7, 2:19 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 30 hr |
| Aug 7, 2:42 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 37 more | 28 hr |
| Aug 14, 3:20 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 41 hr |
| Aug 14, 3:20 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 65 hr |
| Aug 14, 2:31 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Cass, Clarke, Davis and 7 more | 28 hr |
| Aug 15, 11:40 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 32 hr |
| Aug 15, 1:59 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Aug 15, 2:51 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 29 hr |
| Aug 16, 3:07 AM CDT | Heat Advisory | ARX | Chickasaw, Clayton, Fayette, Floyd, Mitchell | 17 hr |
| Aug 17, 2:09 AM CDT | Heat Advisory | DVN | Benton, Cedar, Des Moines, Henry, Iowa, Jefferson and 9 more | 18 hr |
| Aug 17, 6:25 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 1 more | 14 hr |
| Aug 18, 3:03 AM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 16 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Des Moines County10
- Henry County10
- Jefferson County10
- Lee County10
- Louisa County10
- Muscatine County10
- Scott County10
- Van Buren County10
- Washington County10
- Cedar County9
- Johnson County9
- Keokuk County9
- Linn County9
- Benton County8
- Iowa County8
- Appanoose County8
- Davis County8
- Clarke County7
- Decatur County7
- Lucas County7
- Ringgold County7
- Union County7
- Clinton County7
- Jones County7
- Monroe County7
- Wapello County7
- Wayne County7
- Fremont County7
- Harrison County7
- Mills County7
- Montgomery County7
- Page County7
- Pottawattamie County7
- Dallas County6
- Hardin County6
- Jasper County6
- Madison County6
- Marion County6
- Polk County6
- Warren County6
59 more counties
- Mahaska County6
- Poweshiek County6
- Tama County6
- Plymouth County6
- Woodbury County6
- Adair County6
- Adams County6
- Cass County6
- Taylor County6
- Boone County5
- Hamilton County5
- Hancock County5
- Marshall County5
- Story County5
- Winnebago County5
- Wright County5
- Buchanan County5
- Delaware County5
- Dubuque County5
- Jackson County5
- Black Hawk County5
- Cerro Gordo County5
- Franklin County5
- Grundy County5
- Worth County5
- Cherokee County5
- Ida County5
- O'Brien County5
- Sioux County5
- Audubon County5
- Emmet County5
- Guthrie County5
- Kossuth County5
- Shelby County5
- Chickasaw County4
- Clayton County4
- Fayette County4
- Floyd County4
- Mitchell County4
- Bremer County4
- Butler County4
- Lyon County4
- Osceola County4
- Buena Vista County4
- Clay County4
- Dickinson County4
- Calhoun County4
- Carroll County4
- Crawford County4
- Greene County4
- Humboldt County4
- Palo Alto County4
- Pocahontas County4
- Sac County4
- Webster County4
- Monona County4
- Allamakee County3
- Howard County3
- Winneshiek County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.