Alert archive / Iowa / Heat Advisories / 2021
Heat Advisories in Iowa, August 2021
19 heat advisories in August 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 August 2021. Tap one for its archive.
- Heat Advisories
- 19
- Busiest day
- August 10, 20214 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 |
|---|---|---|---|---|
| Aug 8, 2:24 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 53 hr |
| Aug 8, 2:37 PM CDT | Heat Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 54 hr |
| Aug 8, 3:39 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Black Hawk, Boone, Bremer and 26 more | 51 hr |
| Aug 9, 1:55 PM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Winneshiek | 28 hr |
| Aug 10, 3:02 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 42 hr |
| Aug 10, 12:56 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 30 hr |
| Aug 10, 2:26 PM CDT | Heat Advisory | ARX | Clayton | 27 hr |
| Aug 10, 2:28 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 29 hr |
| Aug 12, 2:57 AM CDT | Heat Advisory | DVN | Lee | 8 hr |
| Aug 23, 2:45 PM CDT | Heat Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 12 more | 29 hr |
| Aug 23, 3:13 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 25 more | 28 hr |
| Aug 23, 4:14 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 28 hr |
| Aug 24, 3:31 AM CDT | Heat Advisory | FSD | Plymouth, Woodbury | 11 hr |
| Aug 24, 3:46 PM CDT | Heat Advisory | OAX | Fremont, Page | 28 hr |
| Aug 25, 4:07 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 40 hr |
| Aug 26, 3:27 AM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 17 hr |
| Aug 26, 3:30 AM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 16 more | 17 hr |
| Aug 27, 1:34 PM CDT | Heat Advisory | DVN | Lee | 29 hr |
| Aug 27, 3:07 PM CDT | Heat Advisory | DVN | Des Moines, Henry, Van Buren | 28 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lee County6
- Des Moines County5
- Henry County5
- Van Buren County5
- Fremont County5
- Page County5
- Jefferson County4
- Keokuk County4
- Louisa County4
- Muscatine County4
- Scott County4
- Washington County4
- Mills County4
- Montgomery County4
- Pottawattamie County4
- Adair County4
- Adams County4
- Appanoose County4
- Cass County4
- Clarke County4
- Dallas County4
- Davis County4
- Decatur County4
- Guthrie County4
- Lucas County4
- Madison County4
- Mahaska County4
- Marion County4
- Monroe County4
- Polk County4
- Ringgold County4
- Taylor County4
- Union County4
- Wapello County4
- Warren County4
- Wayne County4
- Benton County3
- Cedar County3
- Clinton County3
- Iowa County3
33 more counties
- Jackson County3
- Johnson County3
- Jones County3
- Linn County3
- Jasper County3
- Poweshiek County3
- Harrison County3
- Shelby County3
- Audubon County3
- Buchanan County2
- Delaware County2
- Dubuque County2
- Boone County2
- Marshall County2
- Story County2
- Tama County2
- Clayton County2
- Black Hawk County1
- Bremer County1
- Butler County1
- Grundy County1
- Hardin County1
- Allamakee County1
- Chickasaw County1
- Fayette County1
- Floyd County1
- Winneshiek County1
- Carroll County1
- Crawford County1
- Greene County1
- Monona County1
- Plymouth County1
- Woodbury 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.