Alert archive / Iowa / Flash Flood Warnings

Flash Flood Warnings in Iowa, 2021

30 flash flood warnings in 2021. 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 2021. Tap one for its archive.

Flash Flood Warnings
30
Busiest month
August21 flash flood warnings
Busiest day
August 28, 20215 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
Jun 24, 8:15 PM CDTFlash Flood WarningDMXDavis, Wapello6 hr
Jun 24, 8:42 PM CDTFlash Flood WarningDVNJefferson, Van Buren6 hr
Jun 24, 9:21 PM CDTFlash Flood WarningDMXAppanoose, Lucas, Monroe, Wayne5 hr
Jun 25, 11:37 PM CDTFlash Flood WarningDVNLinn101 min
Jun 26, 4:31 AM CDTFlash Flood WarningARXAllamakee5 hr
Jun 28, 12:20 PM CDTFlash Flood WarningDVNVan Buren5 hr
Jun 29, 1:21 PM CDTFlash Flood WarningARXAllamakee3 hr
Jul 11, 10:56 AM CDTFlash Flood WarningDVNHenry, Jefferson, Lee, Van Buren4 hr
Jul 14, 8:28 PM CDTFlash Flood WarningDMXMarshall, Polk, Story6 hr
Aug 7, 9:05 PM CDTFlash Flood WarningOAXPottawattamie4 hr
Aug 7, 9:35 PM CDTFlash Flood Warning Considerable damage threatOAXPottawattamie3 hr
Aug 7, 10:30 PM CDTFlash Flood Warning EmergencyOAXPottawattamie89 min
Aug 9, 12:10 AM CDTFlash Flood WarningARXChickasaw, Floyd6 hr
Aug 11, 6:59 AM CDTFlash Flood WarningDVNDes Moines, Lee3 hr
Aug 12, 9:23 AM CDTFlash Flood WarningDVNVan Buren4 hr
Aug 12, 10:32 AM CDTFlash Flood WarningDVNLee, Van Buren6 hr
Aug 12, 11:12 AM CDTFlash Flood WarningDMXAppanoose, Davis3 hr
Aug 25, 7:15 AM CDTFlash Flood WarningDVNIowa, Keokuk, Washington4 hr
Aug 26, 10:29 PM CDTFlash Flood WarningDVNKeokuk4 hr
Aug 27, 1:51 AM CDTFlash Flood WarningARXHoward, Mitchell4 hr
Aug 27, 3:33 AM CDTFlash Flood WarningARXHoward, Mitchell, Winneshiek4 hr
Aug 27, 8:21 PM CDTFlash Flood WarningDMXCerro Gordo, Hancock, Winnebago, Worth6 hr
Aug 27, 8:45 PM CDTFlash Flood WarningARXHoward, Mitchell9 hr
Aug 27, 11:12 PM CDTFlash Flood WarningARXChickasaw, Floyd6 hr
Aug 28, 1:16 AM CDTFlash Flood WarningARXFayette, Winneshiek4 hr
Aug 28, 5:27 AM CDTFlash Flood WarningDVNBuchanan, Delaware4 hr
Aug 28, 9:29 PM CDTFlash Flood WarningFSDLyon3 hr
Aug 28, 10:04 PM CDTFlash Flood WarningFSDLyon, Osceola4 hr
Aug 28, 10:24 PM CDTFlash Flood WarningFSDDickinson, Osceola5 hr
Aug 31, 3:09 PM CDTFlash Flood WarningDVNScott2 hr

By county

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

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 28, 20215flash flood warnings
  2. June 25, 20213flash flood warnings
  3. August 8, 20213flash flood warnings
  4. August 12, 20213flash flood warnings
  5. August 27, 20213flash flood warnings
  6. August 29, 20213flash flood warnings
  7. June 26, 20212flash flood warnings
  8. June 28, 20211flash flood warnings
  9. June 29, 20211flash flood warnings
  10. July 11, 20211flash flood warnings
  11. July 15, 20211flash flood warnings
  12. August 9, 20211flash flood warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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.