Alert archive / Iowa / Flash Flood Warnings

Flash Flood Warnings in Iowa, 2024

83 flash flood warnings in 2024. 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 flash flood warnings reaches back to 1986.

Flash Flood Warnings by county

Each county as a circle sized by its count in 2024. Tap one for its archive.

Flash Flood Warnings
83
Busiest month
June31 flash flood warnings
Busiest day
May 21, 202415 flash flood 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.

IssuedProductOfficeCountiesLasted
Apr 26, 4:32 PM CDTFlash Flood WarningOAXMills, Pottawattamie3 hr
May 2, 1:38 PM CDTFlash Flood WarningDMXAppanoose, Lucas, Monroe, Wapello, Wayne6 hr
May 6, 11:27 PM CDTFlash Flood WarningOAXFremont, Page4 hr
May 15, 4:53 PM CDTFlash Flood WarningOAXMills, Pottawattamie2 hr
May 20, 9:51 PM CDTFlash Flood WarningOAXShelby5 hr
May 20, 11:12 PM CDTFlash Flood WarningOAXMills, Pottawattamie3 hr
May 20, 11:16 PM CDTFlash Flood WarningDMXHancock, Kossuth, Winnebago6 hr
May 21, 2:38 AM CDTFlash Flood WarningOAXHarrison, Monona5 hr
May 21, 3:09 AM CDTFlash Flood WarningDMXButler, Franklin, Grundy, Hardin, Wright8 hr
May 21, 3:26 AM CDTFlash Flood WarningDMXAdair, Audubon, Cass, Guthrie8 hr
May 21, 4:22 AM CDTFlash Flood WarningDMXBoone, Dallas, Greene, Guthrie, Jasper, Marshall and 2 more7 hr
May 21, 5:21 AM CDTFlash Flood WarningOAXPottawattamie4 hr
May 21, 6:26 AM CDTFlash Flood WarningDMXJasper, Marshall, Poweshiek, Tama5 hr
May 21, 7:11 AM CDTFlash Flood WarningOAXHarrison, Pottawattamie, Shelby4 hr
May 21, 8:57 AM CDTFlash Flood WarningDMXBlack Hawk, Bremer, Grundy, Hardin, Marshall, Tama2 hr
May 21, 12:34 PM CDTFlash Flood WarningDVNIowa4 hr
May 21, 2:57 PM CDTFlash Flood WarningDMXAdair, Audubon, Carroll, Cass, Crawford, Greene and 1 more6 hr
May 21, 6:24 PM CDTFlash Flood WarningARXFayette, Winneshiek3 hr
May 21, 6:49 PM CDTFlash Flood WarningARXAllamakee, Winneshiek3 hr
May 31, 2:32 PM CDTFlash Flood WarningDMXEmmet6 hr
Jun 3, 3:18 PM CDTFlash Flood WarningDVNDelaware, Dubuque4 hr
Jun 3, 4:52 PM CDTFlash Flood WarningARXAllamakee3 hr
Jun 4, 5:35 PM CDTFlash Flood WarningDMXKossuth3 hr
Jun 4, 7:44 PM CDTFlash Flood WarningDVNClinton, Jackson2 hr
Jun 15, 9:33 PM CDTFlash Flood WarningFSDDickinson2 hr
Jun 17, 4:54 AM CDTFlash Flood WarningFSDPlymouth6 hr
Jun 20, 3:44 PM CDTFlash Flood WarningFSDLyon, Sioux3 hr
Jun 20, 5:05 PM CDTFlash Flood WarningFSDLyon, Osceola3 hr
Jun 21, 12:10 AM CDTFlash Flood WarningFSDLyon9 hr
Jun 21, 12:22 AM CDTFlash Flood WarningFSDLyon, Sioux9 hr
Jun 21, 2:29 AM CDTFlash Flood WarningFSDSioux7 hr
Jun 21, 3:45 AM CDTFlash Flood WarningFSDO'Brien, Osceola, Sioux6 hr
Jun 21, 7:33 PM CDTFlash Flood WarningFSDLyon, Sioux4 hr
Jun 21, 7:57 PM CDTFlash Flood Warning Considerable damage threatFSDLyon4 hr
Jun 21, 8:19 PM CDTFlash Flood WarningFSDDickinson, Lyon, O'Brien, Osceola, Sioux4 hr
Jun 21, 8:45 PM CDTFlash Flood Warning Considerable damage threatFSDLyon, Osceola4 hr
Jun 21, 9:25 PM CDTFlash Flood WarningFSDClay, Dickinson, O'Brien, Sioux4 hr
Jun 21, 10:46 PM CDTFlash Flood WarningDMXEmmet, Kossuth6 hr
Jun 21, 11:41 PM CDTFlash Flood WarningDMXPalo Alto6 hr
Jun 22, 12:24 AM CDTFlash Flood WarningDMXHumboldt, Kossuth, Pocahontas, Winnebago6 hr
Jun 22, 1:02 AM CDTFlash Flood Warning Considerable damage threatDMXCerro Gordo, Hancock, Winnebago, Worth6 hr
Jun 22, 1:36 AM CDTFlash Flood Warning Considerable damage threatDMXCerro Gordo, Hancock5 hr
Jun 22, 1:56 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatFSDSioux3 hr
Jun 22, 6:22 PM CDTFlash Flood WarningARXAllamakee3 hr
Jun 22, 9:50 PM CDTFlash Flood WarningDVNClinton91 min
Jun 25, 4:49 AM CDTFlash Flood Warning Considerable damage threatFSDWoodbury3 hr
Jun 25, 4:56 AM CDTFlash Flood Warning Considerable damage threatOAXMonona3 hr
Jun 25, 5:08 PM CDTFlash Flood WarningDVNJackson2 hr
Jun 25, 5:33 PM CDTFlash Flood WarningOAXMills, Pottawattamie3 hr
Jun 25, 5:52 PM CDTFlash Flood WarningDVNClinton3 hr
Jun 25, 7:54 PM CDTFlash Flood WarningDVNVan Buren63 min
Jul 1, 11:14 PM CDTFlash Flood WarningOAXPottawattamie5 hr
Jul 2, 4:32 AM CDTFlash Flood WarningDMXAdair, Adams, Cass6 hr
Jul 2, 4:08 PM CDTFlash Flood WarningDMXMadison, Warren4 hr
Jul 2, 4:28 PM CDTFlash Flood WarningDMXJasper, Mahaska, Marion, Poweshiek4 hr
Jul 2, 5:36 PM CDTFlash Flood WarningDMXMahaska, Poweshiek3 hr
Jul 2, 6:04 PM CDTFlash Flood WarningDVNIowa, Johnson, Keokuk, Washington4 hr
Jul 2, 6:31 PM CDTFlash Flood WarningDVNCedar, Johnson3 hr
Jul 2, 6:35 PM CDTFlash Flood WarningDVNKeokuk3 hr
Jul 2, 6:51 PM CDTFlash Flood WarningDVNJohnson, Keokuk, Louisa, Washington3 hr
Jul 2, 7:11 PM CDTFlash Flood WarningDVNDelaware, Dubuque, Jackson, Jones3 hr
Jul 7, 7:06 PM CDTFlash Flood WarningOAXPottawattamie3 hr
Jul 7, 7:53 PM CDTFlash Flood WarningDMXFranklin, Wright6 hr
Jul 10, 5:45 PM CDTFlash Flood WarningDVNJohnson88 min
Jul 11, 2:04 AM CDTFlash Flood WarningDVNBenton, Linn2 hr
Jul 15, 4:26 PM CDTFlash Flood WarningDMXFranklin, Hamilton, Hardin, Wright4 hr
Jul 15, 4:50 PM CDTFlash Flood WarningDMXBlack Hawk, Grundy, Tama3 hr
Jul 15, 4:58 PM CDTFlash Flood WarningDVNBenton, Buchanan3 hr
Jul 15, 5:35 PM CDTFlash Flood WarningDVNBenton, Buchanan, Linn3 hr
Jul 15, 6:08 PM CDTFlash Flood WarningDVNLinn3 hr
Jul 15, 6:15 PM CDTFlash Flood WarningDVNDelaware, Dubuque2 hr
Jul 15, 6:47 PM CDTFlash Flood WarningDVNDubuque, Jackson78 min
Jul 22, 6:13 PM CDTFlash Flood WarningDVNScott2 hr
Jul 25, 7:49 AM CDTFlash Flood WarningDVNLee3 hr
Jul 28, 3:27 PM CDTFlash Flood WarningFSDWoodbury3 hr
Jul 30, 3:29 PM CDTFlash Flood WarningDMXJasper, Mahaska, Marion3 hr
Jul 31, 4:45 AM CDTFlash Flood WarningDVNJefferson, Keokuk, Van Buren6 hr
Jul 31, 7:47 AM CDTFlash Flood WarningDMXDavis, Monroe, Wapello5 hr
Jul 31, 8:02 AM CDTFlash Flood WarningDMXMahaska, Marion, Warren4 hr
Jul 31, 11:38 AM CDTFlash Flood WarningDVNJefferson, Lee, Van Buren4 hr
Aug 14, 3:58 AM CDTFlash Flood WarningOAXMills, Pottawattamie3 hr
Aug 14, 10:00 PM CDTFlash Flood WarningOAXPottawattamie5 hr
Aug 29, 4:15 PM CDTFlash Flood WarningFSDWoodbury2 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

39 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 21, 202415flash flood warnings
  2. June 22, 202412flash flood warnings
  3. July 2, 20249flash flood warnings
  4. July 15, 20247flash flood warnings
  5. June 25, 20245flash flood warnings
  6. June 21, 20244flash flood warnings
  7. July 31, 20244flash flood warnings
  8. June 3, 20242flash flood warnings
  9. June 20, 20242flash flood warnings
  10. July 8, 20242flash flood warnings
  11. April 26, 20241flash flood warnings
  12. May 2, 20241flash flood warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20232025

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.