Weather alerts in Iowa
53,965 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Alerts
- 53,965
- Warnings
- 32,259
- Watches
- 4,337
- Advisories
- 6,276
- Busiest year
- 20082,972 alerts
- Average year
- 1,316over 41 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County4,069
- Polk County3,819
- Scott County3,817
- Linn County3,793
- Johnson County3,761
- Louisa County3,699
- Mills County3,644
- Clinton County3,629
- Fremont County3,617
- Harrison County3,607
- Muscatine County3,584
- Cedar County3,563
- Jones County3,521
- Dallas County3,462
- Benton County3,424
- Washington County3,411
- Des Moines County3,403
- Lee County3,377
- Story County3,373
- Jackson County3,368
- Warren County3,363
- Montgomery County3,357
- Delaware County3,353
- Dubuque County3,322
- Jasper County3,320
- Boone County3,312
- Iowa County3,309
- Madison County3,308
- Buchanan County3,298
- Page County3,296
- Monona County3,294
- Marion County3,291
- Sioux County3,288
- Webster County3,280
- Guthrie County3,263
- Clay County3,255
- Plymouth County3,248
- Adair County3,247
- Black Hawk County3,211
- Marshall County3,207
59 more counties
- Greene County3,199
- Shelby County3,176
- Henry County3,145
- Kossuth County3,133
- Cass County3,128
- Hamilton County3,116
- Lyon County3,114
- Woodbury County3,111
- Mahaska County3,106
- O'Brien County3,101
- Carroll County3,097
- Keokuk County3,094
- Union County3,093
- Hardin County3,090
- Cerro Gordo County3,063
- Tama County3,060
- Calhoun County3,041
- Humboldt County3,037
- Wright County3,027
- Lucas County3,024
- Clarke County3,021
- Audubon County3,012
- Adams County3,008
- Franklin County2,998
- Pocahontas County2,995
- Cherokee County2,991
- Grundy County2,984
- Jefferson County2,967
- Van Buren County2,957
- Ringgold County2,956
- Hancock County2,953
- Poweshiek County2,952
- Clayton County2,946
- Decatur County2,946
- Dickinson County2,936
- Butler County2,931
- Osceola County2,929
- Palo Alto County2,920
- Crawford County2,914
- Wayne County2,912
- Taylor County2,905
- Wapello County2,867
- Buena Vista County2,861
- Monroe County2,859
- Sac County2,852
- Worth County2,839
- Floyd County2,822
- Fayette County2,804
- Winneshiek County2,803
- Emmet County2,795
- Appanoose County2,793
- Chickasaw County2,791
- Winnebago County2,786
- Bremer County2,776
- Howard County2,748
- Mitchell County2,735
- Allamakee County2,704
- Ida County2,686
- Davis County2,667
The latest warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 11:47 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 5 days |
| Sep 21, 11:47 AM CDT | River Flood Warning | DVN | Des Moines | 5 days |
| Sep 21, 11:47 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 4 days |
| Sep 20, 7:42 PM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Sep 20, 7:42 PM CDT | River Flood Warning | DVN | Louisa | 6 days |
| Sep 20, 10:02 AM CDT | River Flood Warning | DVN | Benton, Iowa | 24 hr |
| Sep 20, 9:51 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 5 days |
| Sep 20, 9:44 AM CDT | River Flood Warning | DVN | Keokuk | 60 hr |
| Sep 20, 8:04 AM CDT | Areal Flood Warning | DVN | Cedar, Iowa, Johnson, Keokuk, Louisa, Muscatine and 1 more | 6 hr |
| Sep 20, 7:55 AM CDT | Areal Flood Warning | DVN | Benton, Cedar, Iowa, Johnson, Jones, Linn | 6 hr |
| Sep 20, 5:43 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 4 days |
| Sep 20, 5:17 AM CDT | River Flood Warning | DVN | Johnson, Washington | 4 days |
Nearby
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. Rebuilt daily.