Alert archive / Iowa / Excessive Heat Warnings
Excessive Heat Warnings in Iowa, 2017
3 excessive heat warnings in 2017. 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 2017. Tap one for its archive.
- Excessive Heat Warnings
- 3
- Busiest month
- July3 excessive heat warnings
- Busiest day
- July 18, 20173 excessive heat warnings
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 18, 2:58 PM CDT | Excessive Heat Warning | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 4 days |
| Jul 18, 3:08 PM CDT | Excessive Heat Warning | DVN | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 4 days |
| Jul 18, 3:57 PM CDT | Excessive Heat Warning | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 4 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adair County1
- Adams County1
- Appanoose County1
- Audubon County1
- Cass County1
- Clarke County1
- Dallas County1
- Davis County1
- Decatur County1
- Guthrie County1
- Jasper County1
- Lucas County1
- Madison County1
- Mahaska County1
- Marion County1
- Monroe County1
- Polk County1
- Poweshiek County1
- Ringgold County1
- Taylor County1
- Union County1
- Wapello County1
- Warren County1
- Wayne County1
- Cedar County1
- Des Moines County1
- Henry County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Keokuk County1
- Lee County1
- Louisa County1
- Muscatine County1
- Scott County1
- Van Buren County1
- Washington County1
- Fremont County1
- Harrison County1
- Mills County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.