Alert archive / Iowa / 2025
Weather alerts in Iowa, September 2025
106 weather alerts in September 2025, 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 in September 2025. Tap one for its archive.
- Alerts
- 106
- Warnings
- 57
- Watches
- 0
- Advisories
- 9
- Busiest day
- September 16, 202527 alerts
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 |
|---|---|---|---|---|
| Sep 2, 5:51 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Ida, Plymouth, Woodbury | 4 hr |
| Sep 3, 5:56 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Greene, Webster | 22 min |
| Sep 3, 6:43 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Greene, Guthrie | 47 min |
| Sep 4, 4:56 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 2 more | 94 min |
| Sep 6, 4:17 PM CDT | Frost Advisory | FSD | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 1 more | 17 hr |
| Sep 9, 10:49 PM CDT | Dense Fog Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 2 more | 12 hr |
| Sep 10, 6:14 AM CDT | Dense Fog Advisory | OAX | Monona | 4 hr |
| Sep 11, 12:29 AM CDT | Dense Fog Advisory | ARX | Allamakee, Howard, Winneshiek | 9 hr |
| Sep 14, 2:54 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 36 min |
| Sep 14, 3:07 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 24 min |
| Sep 14, 3:28 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 92 min |
| Sep 14, 4:39 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 36 min |
| Sep 14, 5:01 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 29 min |
| Sep 15, 3:12 PM CDT | Special Weather Statement | DVN | Washington | 48 min |
| Sep 15, 3:24 PM CDT | Special Weather Statement | DVN | Johnson | 51 min |
| Sep 15, 4:07 PM CDT | Special Weather Statement | DVN | Iowa | 38 min |
| Sep 15, 4:49 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Iowa, Jefferson, Keokuk, Mahaska and 4 more | 86 min |
| Sep 15, 5:22 PM CDT | Special Weather Statement | DVN | Jefferson | 38 min |
| Sep 15, 6:02 PM CDT | Special Weather Statement | DMX | Wapello | 13 min |
| Sep 15, 6:03 PM CDT | Special Weather Statement | DVN | Benton | 27 min |
| Sep 15, 6:14 PM CDT | Special Weather Statement | DMX | Black Hawk | 31 min |
| Sep 15, 6:17 PM CDT | Special Weather Statement | DVN | Keokuk | 43 min |
| Sep 15, 6:32 PM CDT | Special Weather Statement | DVN | Benton | 28 min |
| Sep 15, 6:44 PM CDT | Special Weather Statement | DMX | Black Hawk | 31 min |
| Sep 15, 6:58 PM CDT | Special Weather Statement | DVN | Buchanan | 47 min |
| Sep 15, 7:00 PM CDT | Special Weather Statement | DVN | Iowa | 45 min |
| Sep 16, 1:00 PM CDT | Special Weather Statement | DMX | Dallas | 30 min |
| Sep 16, 1:52 PM CDT | Special Weather Statement | DMX | Clarke | 23 min |
| Sep 16, 2:00 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 30 min |
| Sep 16, 2:21 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 45 more | 114 min |
| Sep 16, 3:25 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Warren | 20 min |
| Sep 16, 3:36 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 24 min |
| Sep 16, 3:42 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 33 min |
| Sep 16, 3:45 PM CDT | Severe Thunderstorm Warning | DMX | Union | 30 min |
| Sep 16, 3:50 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 25 min |
| Sep 16, 3:59 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 15 min |
| Sep 16, 4:01 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 29 min |
| Sep 16, 4:13 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 32 min |
| Sep 16, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 25 min |
| Sep 16, 4:26 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 34 min |
| Sep 16, 4:34 PM CDT | Special Weather Statement | ARX | Floyd | 41 min |
| Sep 16, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Union | 21 min |
| Sep 16, 4:44 PM CDT | Special Weather Statement | ARX | Mitchell | 46 min |
| Sep 16, 5:16 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 29 min |
| Sep 16, 5:21 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 24 min |
| Sep 16, 5:35 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 25 min |
| Sep 16, 5:49 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 41 min |
| Sep 16, 5:52 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 22 min |
| Sep 16, 6:28 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 12 min |
| Sep 16, 6:33 PM CDT | Special Weather Statement | ARX | Chickasaw | 42 min |
| Sep 16, 6:46 PM CDT | Special Weather Statement | DMX | Cass | 14 min |
| Sep 16, 6:52 PM CDT | Special Weather Statement | DMX | Sac | 23 min |
| Sep 16, 7:25 PM CDT | Special Weather Statement | ARX | Fayette | 35 min |
| Sep 16, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 48 min |
| Sep 16, 8:23 PM CDT | Flash Flood Warning | DMX | Calhoun, Webster | 3 hr |
| Sep 16, 8:23 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 21 min |
| Sep 16, 9:09 PM CDT | Flash Flood Warning | FSD | O'Brien, Osceola, Sioux | 63 min |
| Sep 16, 9:23 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Osceola | 39 min |
| Sep 17, 1:27 AM CDT | Flash Flood Warning | DMX | Guthrie | 6 hr |
| Sep 17, 4:01 PM CDT | Special Weather Statement | DMX | Decatur | 29 min |
| Sep 17, 4:14 PM CDT | Special Weather Statement | DMX | Clarke | 31 min |
| Sep 17, 4:25 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold | 50 min |
| Sep 17, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 26 min |
| Sep 17, 4:39 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 36 min |
| Sep 17, 4:55 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Warren, Wayne | 35 min |
| Sep 17, 5:01 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Jasper, Lucas, Mahaska and 5 more | 89 min |
| Sep 17, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 16 min |
| Sep 17, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 21 min |
| Sep 19, 7:45 PM CDT | Special Weather Statement | ARX | Allamakee | 30 min |
| Sep 20, 4:08 AM CDT | Dense Fog Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 4 hr |
| Sep 21, 3:33 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Cass and 19 more | 5 hr |
| Sep 21, 3:33 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 6 hr |
| Sep 21, 4:16 AM CDT | Dense Fog Advisory | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 5 hr |
| Sep 21, 4:33 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, Osceola and 2 more | 87 min |
| Sep 21, 7:35 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 40 min |
| Sep 21, 7:41 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 49 min |
| Sep 21, 8:20 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 40 min |
| Sep 21, 8:55 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 50 min |
| Sep 21, 10:28 PM CDT | Special Weather Statement | DMX | Emmet | 32 min |
| Sep 22, 2:36 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 54 min |
| Sep 22, 2:43 PM CDT | Mesoscale Discussion | SPC | Allamakee | 92 min |
| Sep 22, 6:26 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 49 min |
| Sep 22, 6:31 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Clay, O'Brien | 44 min |
| Sep 22, 7:14 PM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 46 min |
| Sep 22, 7:29 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 46 min |
| Sep 22, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 29 min |
| Sep 22, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster, Wright | 50 min |
| Sep 22, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 46 min |
| Sep 22, 8:12 PM CDT | Special Weather Statement | DVN | Dubuque | 48 min |
| Sep 22, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 38 min |
| Sep 22, 8:35 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 40 min |
| Sep 22, 8:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 19 more | 114 min |
| Sep 22, 8:56 PM CDT | Special Weather Statement | DVN | Delaware | 49 min |
| Sep 22, 9:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Hardin, Marshall, Story | 43 min |
| Sep 22, 9:03 PM CDT | Special Weather Statement | DVN | Dubuque | 57 min |
| Sep 22, 9:05 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story, Webster | 40 min |
| Sep 22, 9:38 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 52 min |
| Sep 22, 9:47 PM CDT | Special Weather Statement | DVN | Benton, Jones, Linn | 43 min |
| Sep 22, 10:07 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 38 min |
| Sep 22, 10:16 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 27 min |
| Sep 22, 10:23 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene | 52 min |
| Sep 22, 10:26 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 49 min |
| Sep 22, 10:29 PM CDT | Special Weather Statement | DVN | Cedar, Johnson | 46 min |
| Sep 22, 11:17 PM CDT | Special Weather Statement | DVN | Cedar, Johnson, Muscatine | 43 min |
| Sep 22, 11:57 PM CDT | Special Weather Statement | DVN | Henry, Jefferson, Louisa, Washington | 48 min |
| Sep 23, 12:58 AM CDT | Special Weather Statement | DVN | Des Moines, Henry, Lee | 47 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 54 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 32 |
| Flooding | |
| Flash Flood Warning | 3 |
| Cold | |
| Frost Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clarke County11
- Webster County9
- Sioux County9
- Plymouth County8
- O'Brien County8
- Monona County8
- Decatur County8
- Boone County7
- Clay County7
- Osceola County7
- Warren County7
- Woodbury County6
- Calhoun County6
- Greene County6
- Black Hawk County6
- Wayne County6
- Dallas County5
- Guthrie County5
- Dickinson County5
- Lyon County5
- Lucas County5
- Hamilton County5
- Harrison County5
- Marion County5
- Story County5
- Union County5
- Wright County5
- Cherokee County4
- Allamakee County4
- Appanoose County4
- Jefferson County4
- Mahaska County4
- Monroe County4
- Wapello County4
- Cass County4
- Floyd County4
- Emmet County3
- Johnson County3
- Iowa County3
- Benton County3
52 more counties
- Adair County3
- Adams County3
- Audubon County3
- Humboldt County3
- Jasper County3
- Madison County3
- Marshall County3
- Mills County3
- Montgomery County3
- Pocahontas County3
- Polk County3
- Pottawattamie County3
- Ringgold County3
- Sac County3
- Shelby County3
- Cerro Gordo County3
- Chickasaw County3
- Henry County3
- Buena Vista County2
- Ida County2
- Palo Alto County2
- Howard County2
- Winneshiek County2
- Washington County2
- Davis County2
- Keokuk County2
- Van Buren County2
- Carroll County2
- Crawford County2
- Fremont County2
- Hardin County2
- Page County2
- Taylor County2
- Kossuth County2
- Mitchell County2
- Des Moines County2
- Lee County2
- Dubuque County2
- Cedar County2
- Poweshiek County1
- Buchanan County1
- Hancock County1
- Franklin County1
- Bremer County1
- Fayette County1
- Winnebago County1
- Clayton County1
- Delaware County1
- Jones County1
- Linn County1
- Muscatine County1
- Louisa County1
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. Rebuilt daily.