Alert archive / Iowa / Flash Flood Warnings

Flash Flood Warnings in Iowa, 2018

84 flash flood warnings in 2018. 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 2018. Tap one for its archive.

Flash Flood Warnings
84
Busiest month
June35 flash flood warnings
Busiest day
September 2, 20188 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
May 1, 6:58 PM CDTFlash Flood WarningOAXHarrison, Monona2 hr
May 2, 7:47 PM CDTFlash Flood WarningDMXAdams, Ringgold, Taylor, Union6 hr
May 14, 3:04 AM CDTFlash Flood WarningDVNBuchanan, Delaware, Dubuque, Jackson4 hr
Jun 8, 8:01 AM CDTFlash Flood WarningDMXCerro Gordo, Worth6 hr
Jun 9, 4:21 AM CDTFlash Flood WarningDVNClinton, Jackson6 hr
Jun 9, 7:00 AM CDTFlash Flood WarningDVNJackson3 hr
Jun 9, 8:39 AM CDTFlash Flood WarningDVNLinn2 hr
Jun 9, 4:00 PM CDTFlash Flood WarningDMXCerro Gordo, Worth6 hr
Jun 9, 4:04 PM CDTFlash Flood WarningARXFloyd, Mitchell3 hr
Jun 9, 5:49 PM CDTFlash Flood WarningARXHoward, Winneshiek3 hr
Jun 9, 9:17 PM CDTFlash Flood WarningDVNBuchanan6 hr
Jun 9, 9:30 PM CDTFlash Flood WarningARXClayton, Fayette3 hr
Jun 9, 10:36 PM CDTFlash Flood WarningDVNDelaware6 hr
Jun 11, 5:00 AM CDTFlash Flood WarningDMXPalo Alto6 hr
Jun 11, 5:32 AM CDTFlash Flood WarningDMXAudubon, Cass6 hr
Jun 14, 7:01 AM CDTFlash Flood WarningFSDLyon, O'Brien, Osceola3 hr
Jun 14, 7:37 AM CDTFlash Flood WarningFSDBuena Vista, Clay3 hr
Jun 14, 7:49 AM CDTFlash Flood WarningDMXCalhoun, Humboldt, Pocahontas, Webster6 hr
Jun 14, 8:38 AM CDTFlash Flood WarningDMXHamilton, Webster6 hr
Jun 14, 9:13 AM CDTFlash Flood WarningDMXBoone, Story6 hr
Jun 19, 11:29 PM CDTFlash Flood WarningOAXHarrison, Pottawattamie4 hr
Jun 20, 2:12 AM CDTFlash Flood WarningDMXCalhoun, Webster5 hr
Jun 20, 4:13 PM CDTFlash Flood WarningDMXHumboldt, Kossuth, Palo Alto, Pocahontas6 hr
Jun 20, 4:25 PM CDTFlash Flood WarningDMXHumboldt, Kossuth6 hr
Jun 20, 5:39 PM CDTFlash Flood WarningDVNScott3 hr
Jun 20, 9:58 PM CDTFlash Flood WarningDMXKossuth, Palo Alto6 hr
Jun 24, 4:46 PM CDTFlash Flood WarningFSDCherokee, O'Brien, Plymouth, Sioux4 hr
Jun 24, 4:52 PM CDTFlash Flood Warning EmergencyFSDDickinson, Osceola4 hr
Jun 24, 5:36 PM CDTFlash Flood Warning EmergencyFSDClay, Dickinson, O'Brien, Osceola3 hr
Jun 24, 6:29 PM CDTFlash Flood WarningDMXHancock, Winnebago13 hr
Jun 24, 7:53 PM CDTFlash Flood WarningFSDPlymouth, Sioux3 hr
Jun 24, 8:46 PM CDTFlash Flood WarningDMXKossuth4 hr
Jun 24, 9:05 PM CDTFlash Flood WarningFSDPlymouth, Woodbury3 hr
Jun 24, 9:46 PM CDTFlash Flood WarningDMXHancock, Wright6 hr
Jun 24, 10:41 PM CDTFlash Flood Warning EmergencyFSDPlymouth, Woodbury4 hr
Jun 24, 11:13 PM CDTFlash Flood WarningFSDO'Brien, Plymouth, Sioux, Woodbury4 hr
Jun 25, 12:24 AM CDTFlash Flood WarningDMXHancock7 hr
Jun 25, 9:33 PM CDTFlash Flood WarningDMXJasper, Marion, Marshall, Polk, Story6 hr
Jun 30, 7:33 PM CDTFlash Flood WarningDMXPolk, Story6 hr
Jun 30, 7:42 PM CDTFlash Flood WarningDMXBlack Hawk, Grundy6 hr
Jun 30, 8:02 PM CDTFlash Flood Warning EmergencyDMXPolk6 hr
Jun 30, 8:16 PM CDTFlash Flood Warning EmergencyDMXDallas, Polk6 hr
Jun 30, 10:12 PM CDTFlash Flood WarningDMXJasper6 hr
Jul 1, 1:21 AM CDTFlash Flood WarningDMXDallas, Jasper, Polk, Story8 hr
Jul 14, 6:57 PM CDTFlash Flood WarningDVNDes Moines4 hr
Aug 6, 2:01 AM CDTFlash Flood WarningDVNBuchanan, Delaware5 hr
Aug 20, 5:07 AM CDTFlash Flood WarningOAXHarrison, Pottawattamie, Shelby6 hr
Aug 20, 8:06 AM CDTFlash Flood WarningOAXPottawattamie6 hr
Aug 20, 10:15 AM CDTFlash Flood WarningOAXMills, Pottawattamie4 hr
Aug 27, 4:27 PM CDTFlash Flood WarningFSDDickinson85 min
Sep 1, 3:29 AM CDTFlash Flood WarningDVNIowa8 hr
Sep 1, 3:35 AM CDTFlash Flood WarningDMXPoweshiek, Tama6 hr
Sep 1, 4:16 AM CDTFlash Flood WarningDVNBenton8 hr
Sep 1, 4:21 AM CDTFlash Flood WarningDMXClarke, Decatur5 hr
Sep 1, 4:38 AM CDTFlash Flood WarningDMXTama6 hr
Sep 1, 5:22 AM CDTFlash Flood WarningDMXRinggold, Union4 hr
Sep 1, 9:20 PM CDTFlash Flood WarningDMXBoone, Dallas, Polk, Story6 hr
Sep 1, 9:59 PM CDTFlash Flood WarningDMXMahaska, Monroe, Wapello5 hr
Sep 1, 10:08 PM CDTFlash Flood WarningDVNKeokuk5 hr
Sep 1, 10:16 PM CDTFlash Flood WarningDMXPoweshiek6 hr
Sep 1, 10:47 PM CDTFlash Flood WarningDMXJasper, Poweshiek5 hr
Sep 1, 11:20 PM CDTFlash Flood WarningDVNIowa, Keokuk, Washington4 hr
Sep 2, 1:37 AM CDTFlash Flood WarningDMXMarshall, Story2 hr
Sep 2, 1:34 PM CDTFlash Flood WarningDMXBlack Hawk, Bremer, Butler6 hr
Sep 2, 7:39 PM CDTFlash Flood WarningDVNMuscatine2 hr
Sep 3, 7:43 PM CDTFlash Flood WarningDMXBlack Hawk3 hr
Sep 3, 9:17 PM CDTFlash Flood WarningARXAllamakee9 hr
Sep 3, 11:58 PM CDTFlash Flood WarningARXAllamakee, Clayton6 hr
Sep 4, 5:09 PM CDTFlash Flood WarningDMXHancock, Kossuth, Winnebago6 hr
Sep 5, 6:12 AM CDTFlash Flood WarningDMXFranklin4 hr
Sep 5, 11:07 AM CDTFlash Flood WarningDMXJasper, Mahaska, Marion, Poweshiek4 hr
Sep 5, 12:08 PM CDTFlash Flood WarningDMXAdams, Ringgold, Taylor, Union3 hr
Sep 5, 1:01 PM CDTFlash Flood WarningDVNBenton, Iowa, Johnson, Linn6 hr
Sep 18, 10:48 AM CDTFlash Flood WarningFSDWoodbury2 hr
Sep 19, 10:22 PM CDTFlash Flood WarningDMXFranklin, Wright6 hr
Sep 20, 1:16 AM CDTFlash Flood WarningARXClayton, Fayette3 hr
Sep 20, 4:35 AM CDTFlash Flood WarningFSDClay, Lyon, O'Brien, Osceola, Sioux5 hr
Sep 20, 9:30 AM CDTFlash Flood WarningFSDClay, Lyon, O'Brien, Osceola, Sioux3 hr
Oct 1, 4:41 PM CDTFlash Flood WarningDVNBuchanan, Delaware, Dubuque6 hr
Oct 5, 10:02 PM CDTFlash Flood WarningDVNIowa, Johnson6 hr
Oct 5, 11:32 PM CDTFlash Flood WarningDVNKeokuk6 hr
Oct 6, 1:55 AM CDTFlash Flood WarningDVNCedar, Clinton, Jackson, Jones, Scott6 hr
Oct 10, 6:48 AM CDTFlash Flood WarningDVNCedar, Clinton, Dubuque, Jackson, Jones, Muscatine and 1 more6 hr
Oct 10, 6:51 AM CDTFlash Flood WarningDVNDes Moines, Lee, Louisa2 hr

By county

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

37 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. September 2, 20188flash flood warnings
  2. June 25, 20187flash flood warnings
  3. June 9, 20186flash flood warnings
  4. July 1, 20186flash flood warnings
  5. September 1, 20186flash flood warnings
  6. June 14, 20185flash flood warnings
  7. June 20, 20185flash flood warnings
  8. June 24, 20184flash flood warnings
  9. September 4, 20184flash flood warnings
  10. September 5, 20184flash flood warnings
  11. September 20, 20184flash flood warnings
  12. June 10, 20183flash flood warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20172019

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.