Alert archive / Iowa / Freeze Warnings

Freeze Warnings in Iowa, 2020

19 freeze warnings in 2020. 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 freeze warnings reaches back to 2005.

Freeze Warnings by county

Each county as a circle sized by its count in 2020. Tap one for its archive.

Freeze Warnings
19
Busiest month
May11 freeze warnings
Busiest day
May 10, 20204 freeze 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 9, 2:51 PM CDTFreeze WarningOAXFremont, Page18 hr
Apr 12, 4:02 AM CDTFreeze WarningOAXFremont, Mills, Montgomery, Page30 hr
Apr 13, 4:06 AM CDTFreeze WarningOAXFremont, Mills, Montgomery, Page30 hr
May 7, 3:49 AM CDTFreeze WarningFSDLyon, Osceola29 hr
May 8, 3:13 AM CDTFreeze WarningARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more29 hr
May 8, 3:16 AM CDTFreeze WarningDVNBenton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 12 more29 hr
May 8, 3:23 AM CDTFreeze WarningDMXBlack Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 14 more29 hr
May 9, 3:38 AM CDTFreeze WarningFSDLyon, O'Brien, Osceola, Sioux29 hr
May 10, 2:49 AM CDTFreeze WarningOAXFremont, Harrison, Mills, Monona, Montgomery, Page and 2 more28 hr
May 10, 2:51 AM CDTFreeze WarningARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more29 hr
May 10, 2:54 AM CDTFreeze WarningDMXAdair, Adams, Audubon, Boone, Bremer, Butler and 23 more28 hr
May 10, 4:20 AM CDTFreeze WarningFSDBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more28 hr
May 11, 2:30 PM CDTFreeze WarningFSDDickinson, Osceola18 hr
May 11, 2:41 PM CDTFreeze WarningARXAllamakee, Howard, Mitchell, Winneshiek17 hr
Oct 15, 3:15 AM CDTFreeze WarningDVNBenton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more29 hr
Oct 15, 3:36 AM CDTFreeze WarningOAXHarrison, Monona, Shelby30 hr
Oct 15, 1:30 PM CDTFreeze WarningARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more18 hr
Oct 15, 1:38 PM CDTFreeze WarningDMXBlack Hawk, Bremer, Butler, Davis, Grundy, Mahaska and 3 more18 hr
Oct 23, 3:18 AM CDTFreeze WarningOAXFremont, Mills, Montgomery, Page, Pottawattamie31 hr

By county

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

45 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 10, 20204freeze warnings
  2. October 15, 20204freeze warnings
  3. May 8, 20203freeze warnings
  4. May 11, 20202freeze warnings
  5. April 9, 20201freeze warnings
  6. April 12, 20201freeze warnings
  7. April 13, 20201freeze warnings
  8. May 7, 20201freeze warnings
  9. May 9, 20201freeze warnings
  10. October 23, 20201freeze warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

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.