Alert archive / Iowa / Severe Thunderstorm Warnings / 2026

Severe Thunderstorm Warnings in Iowa, March 2026

46 severe thunderstorm warnings in March 2026. 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 severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in March 2026. Tap one for its archive.

Severe Thunderstorm Warnings
46
Busiest day
March 31, 202614 severe thunderstorm warnings

Over time

By day

Days in UTC, the clock the archive keeps.

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
Mar 6, 5:42 PM CSTSevere Thunderstorm WarningOAXFremont, Mills, Montgomery, Pottawattamie37 min
Mar 6, 6:10 PM CSTSevere Thunderstorm WarningDMXCass34 min
Mar 6, 6:21 PM CSTSevere Thunderstorm WarningOAXMontgomery24 min
Mar 6, 7:23 PM CSTSevere Thunderstorm WarningDMXBoone, Dallas, Polk29 min
Mar 6, 8:32 PM CSTSevere Thunderstorm WarningOAXHarrison, Monona28 min
Mar 6, 9:29 PM CSTSevere Thunderstorm WarningDVNBenton, Buchanan61 min
Mar 6, 9:35 PM CSTSevere Thunderstorm WarningOAXPottawattamie25 min
Mar 10, 5:54 PM CDTSevere Thunderstorm WarningDVNDes Moines, Louisa51 min
Mar 10, 6:01 PM CDTSevere Thunderstorm WarningDVNDes Moines44 min
Mar 10, 6:06 PM CDTSevere Thunderstorm WarningDMXDavis, Wapello39 min
Mar 10, 6:11 PM CDTSevere Thunderstorm WarningDVNJefferson, Van Buren64 min
Mar 10, 6:40 PM CDTSevere Thunderstorm WarningDVNDelaware, Dubuque, Jones50 min
Mar 10, 6:42 PM CDTSevere Thunderstorm WarningDVNClinton, Scott33 min
Mar 10, 6:45 PM CDTSevere Thunderstorm WarningDVNDes Moines, Louisa44 min
Mar 10, 6:57 PM CDTSevere Thunderstorm WarningDVNCedar, Johnson, Muscatine, Scott, Washington48 min
Mar 10, 6:58 PM CDTSevere Thunderstorm WarningDVNHenry, Washington45 min
Mar 10, 6:59 PM CDTSevere Thunderstorm WarningDVNCedar, Johnson, Jones, Linn26 min
Mar 10, 7:18 PM CDTSevere Thunderstorm WarningDVNDubuque, Jackson42 min
Mar 10, 7:22 PM CDTSevere Thunderstorm WarningDMXDavis38 min
Mar 10, 7:23 PM CDTSevere Thunderstorm Warning Destructive damage threatDVNLouisa52 min
Mar 10, 7:26 PM CDTSevere Thunderstorm WarningDVNDelaware, Dubuque, Jackson, Jones, Linn39 min
Mar 10, 7:43 PM CDTSevere Thunderstorm WarningDVNCedar, Clinton, Scott33 min
Mar 10, 7:49 PM CDTSevere Thunderstorm WarningDVNLouisa56 min
Mar 10, 7:55 PM CDTSevere Thunderstorm WarningDVNVan Buren65 min
Mar 10, 7:55 PM CDTSevere Thunderstorm WarningDVNDelaware, Dubuque, Jones32 min
Mar 10, 8:20 PM CDTSevere Thunderstorm WarningDVNClinton, Jackson27 min
Mar 10, 8:59 PM CDTSevere Thunderstorm WarningDVNClinton, Scott46 min
Mar 10, 9:36 PM CDTSevere Thunderstorm WarningDVNDes Moines, Lee30 min
Mar 15, 9:19 AM CDTSevere Thunderstorm WarningDVNJohnson, Louisa, Washington26 min
Mar 15, 9:39 AM CDTSevere Thunderstorm WarningDVNCedar, Muscatine33 min
Mar 26, 8:56 PM CDTSevere Thunderstorm WarningDVNDes Moines, Lee, Van Buren49 min
Mar 30, 6:03 PM CDTSevere Thunderstorm WarningDMXDallas, Polk, Story27 min
Mar 30, 8:44 PM CDTSevere Thunderstorm WarningDMXAdair, Audubon, Cass, Guthrie46 min
Mar 30, 8:59 PM CDTSevere Thunderstorm WarningDVNJackson49 min
Mar 30, 9:11 PM CDTSevere Thunderstorm WarningDMXBoone, Dallas, Greene, Guthrie, Polk49 min
Mar 30, 9:53 PM CDTSevere Thunderstorm WarningDMXBoone, Dallas, Jasper, Marshall, Polk, Story67 min
Mar 30, 10:36 PM CDTSevere Thunderstorm WarningDMXDallas, Polk39 min
Mar 30, 10:48 PM CDTSevere Thunderstorm WarningDMXJasper, Marshall, Polk, Poweshiek, Story, Tama42 min
Mar 30, 10:55 PM CDTSevere Thunderstorm WarningDMXDallas, Guthrie30 min
Mar 31, 12:36 AM CDTSevere Thunderstorm WarningDVNIowa, Johnson, Linn22 min
Mar 31, 7:15 AM CDTSevere Thunderstorm WarningDVNHenry, Louisa, Washington27 min
Mar 31, 8:11 AM CDTSevere Thunderstorm WarningDVNLouisa, Muscatine, Washington49 min
Mar 31, 9:30 AM CDTSevere Thunderstorm Warning Considerable damage threatDVNJohnson, Louisa, Washington45 min
Mar 31, 9:34 AM CDTSevere Thunderstorm WarningDVNHenry, Louisa30 min
Mar 31, 10:10 AM CDTSevere Thunderstorm WarningDVNLouisa, Washington35 min
Mar 31, 10:23 AM CDTSevere Thunderstorm WarningDVNLouisa, Muscatine29 min

By county

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

1 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

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.