Alert archive / Iowa

Winter Weather Advisories in Iowa

1,494 winter weather advisories 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 winter weather advisories reaches back to 2005.

Winter Weather Advisories by county

Each county as a circle sized by its count since 1986. Tap one for its archive.

Winter Weather Advisories
1,494
Busiest year
2018132 winter weather advisories
Average year
68over 22 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.

59 more counties

The latest winter weather advisories

The most recent on file, newest first.

IssuedProductOfficeCountiesLasted
Apr 6, 1:20 PM CDTWinter Weather AdvisoryDMXAdair, Adams, Audubon, Cass, Clarke, Decatur and 7 more21 hr
Apr 6, 12:57 PM CDTWinter Weather AdvisoryOAXHarrison, Mills, Montgomery, Pottawattamie, Shelby20 hr
Mar 16, 1:05 PM CDTWinter Weather AdvisoryDVNCedar, Clinton, Delaware, Des Moines, Dubuque, Henry and 13 more11 hr
Mar 16, 5:37 AM CDTWinter Weather AdvisoryDMXAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more4 hr
Mar 16, 3:43 AM CDTWinter Weather AdvisoryARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more9 hr
Mar 15, 1:18 PM CDTWinter Weather AdvisoryDVNBenton, Buchanan, Cedar, Delaware, Des Moines, Dubuque and 12 more24 hr
Mar 14, 11:16 AM CDTWinter Weather AdvisoryOAXFremont, Harrison, Mills, Montgomery, Page, Pottawattamie35 hr
Mar 14, 6:09 AM CDTWinter Weather AdvisoryARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more31 hr
Mar 6, 1:16 PM CSTWinter Weather AdvisoryDMXEmmet, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas and 1 more19 hr
Mar 5, 1:55 PM CSTWinter Weather AdvisoryFSDClay, Dickinson, Lyon, O'Brien, Osceola, Sioux41 hr
Feb 27, 2:25 AM CSTWinter Weather AdvisoryARXAllamakee, Howard, Winneshiek38 hr
Feb 19, 2:49 AM CSTWinter Weather AdvisoryDVNBenton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 4 more30 hr

Nearby

Alerts in force nowTornadoes on recordThe radar archive

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.