Areal Flood Warnings in Iowa
582 areal flood warnings since 1986. 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 areal flood warnings reaches back to 2005.
Areal Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Areal Flood Warnings
- 582
- Busiest year
- 200889 areal flood warnings
- Average year
- 31over 19 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 county
Every county with at least one alert. A county page lists each alert that covered it.
- Tama County40
- Butler County39
- Fremont County39
- Hardin County37
- Black Hawk County35
- Franklin County34
- Mills County34
- Story County34
- Clayton County33
- Fayette County32
- Grundy County32
- Marion County31
- Marshall County31
- Boone County30
- Bremer County30
- Winneshiek County30
- Wright County29
- Howard County27
- Polk County26
- Kossuth County25
- O'Brien County25
- Dallas County24
- Mahaska County24
- Mitchell County24
- Sioux County24
- Allamakee County23
- Cerro Gordo County23
- Chickasaw County23
- Floyd County23
- Greene County23
- Hancock County22
- Humboldt County22
- Monroe County22
- Pottawattamie County22
- Lee County21
- Webster County21
- Benton County20
- Hamilton County20
- Linn County20
- Worth County20
59 more counties
- Guthrie County19
- Clay County19
- Appanoose County18
- Lucas County18
- Madison County18
- Van Buren County18
- Winnebago County18
- Cherokee County18
- Lyon County18
- Buchanan County17
- Jasper County17
- Warren County17
- Johnson County17
- Calhoun County16
- Clarke County16
- Des Moines County16
- Jones County16
- Wayne County16
- Washington County16
- Delaware County15
- Pocahontas County15
- Iowa County15
- Osceola County15
- Adair County14
- Dubuque County14
- Muscatine County14
- Palo Alto County14
- Sac County14
- Buena Vista County14
- Plymouth County14
- Decatur County13
- Ringgold County13
- Union County13
- Wapello County13
- Clinton County13
- Dickinson County13
- Henry County12
- Louisa County12
- Scott County12
- Monona County12
- Page County12
- Adams County11
- Carroll County11
- Jackson County11
- Jefferson County11
- Poweshiek County11
- Cedar County11
- Keokuk County11
- Harrison County11
- Montgomery County11
- Audubon County9
- Davis County9
- Emmet County9
- Crawford County8
- Shelby County8
- Taylor County7
- Woodbury County7
- Cass County6
- Ida County6
The latest areal flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 19, 9:22 AM CDT | Areal Flood Warning | ARX | Clayton | 39 hr |
| Sep 19, 8:16 AM CDT | Areal Flood Warning | ARX | Fayette | 29 hr |
| Sep 16, 3:52 PM CDT | Areal Flood Warning | OAX | Fremont, Page | 18 hr |
| Sep 16, 9:13 AM CDT | Areal Flood Warning | OAX | Fremont, Page | 6 hr |
| Sep 15, 3:30 PM CDT | Areal Flood Warning | DMX | Adair | 22 hr |
| Aug 15, 8:33 AM CDT | Areal Flood Warning | DVN | Lee | 6 hr |
| Jul 9, 10:43 AM CDT | Areal Flood Warning | ARX | Mitchell | 30 hr |
| Jul 9, 10:39 AM CDT | Areal Flood Warning | ARX | Howard, Winneshiek | 28 hr |
| Jul 8, 8:33 PM CDT | Areal Flood Warning | ARX | Howard, Mitchell, Winneshiek | 7 hr |
| Jul 4, 6:21 AM CDT | Areal Flood Warning | DMX | Boone, Jasper, Marshall, Polk, Story | 9 hr |
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. Warning verification from the Mesonet's Cow. Rebuilt daily.