Alert archive / Iowa / Severe Thunderstorm Warnings / 2026

Severe Thunderstorm Warnings in Iowa, June 2026

154 severe thunderstorm warnings in June 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 June 2026. Tap one for its archive.

Severe Thunderstorm Warnings: 154
Busiest day: June 11, 202640 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.

Issued	Product	Office	Counties	Lasted
May 31, 9:43 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth	47 min
May 31, 11:00 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	45 min
May 31, 11:08 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	52 min
May 31, 11:36 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	39 min
May 31, 11:44 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth, Woodbury	46 min
May 31, 11:50 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	40 min
Jun 1, 12:18 AM CDT	Severe Thunderstorm Warning	OAX	Monona	42 min
Jun 1, 12:18 AM CDT	Severe Thunderstorm Warning	OAX	Shelby	42 min
Jun 1, 12:24 AM CDT	Severe Thunderstorm Warning	FSD	Woodbury	51 min
Jun 1, 12:28 AM CDT	Severe Thunderstorm Warning	OAX	Harrison	47 min
Jun 1, 12:45 AM CDT	Severe Thunderstorm Warning	OAX	Harrison	22 min
Jun 1, 12:57 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Pottawattamie, Shelby	64 min
Jun 1, 1:06 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	39 min
Jun 1, 1:34 AM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	41 min
Jun 1, 1:39 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Pottawattamie	51 min
Jun 1, 2:06 AM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	54 min
Jun 1, 11:06 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth	24 min
Jun 1, 5:31 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie	20 min
Jun 5, 9:27 PM CDT	Severe Thunderstorm Warning	DMX	Marion, Warren	48 min
Jun 5, 9:40 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	35 min
Jun 5, 9:41 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Madison, Union	64 min
Jun 5, 9:59 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Pottawattamie	46 min
Jun 5, 10:18 PM CDT	Severe Thunderstorm Warning	DMX	Marion, Warren	57 min
Jun 5, 10:20 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	55 min
Jun 5, 10:41 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	64 min
Jun 5, 10:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Mills, Montgomery	61 min
Jun 5, 10:53 PM CDT	Severe Thunderstorm Warning	DMX	Cass	67 min
Jun 5, 10:59 PM CDT	Severe Thunderstorm Warning	DMX	Marion	61 min
Jun 5, 11:02 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Clarke, Madison, Union	32 min
Jun 5, 11:11 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Page	52 min
Jun 5, 11:25 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Mahaska, Marion, Monroe	65 min
Jun 5, 11:28 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	47 min
Jun 5, 11:38 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass, Union	67 min
Jun 5, 11:50 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Marion, Warren	55 min
Jun 6, 12:01 AM CDT	Severe Thunderstorm Warning	DMX	Lucas, Mahaska, Marion, Monroe, Wapello	59 min
Jun 6, 12:42 AM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Lucas, Monroe, Wayne	78 min
Jun 10, 10:42 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hamilton, Hardin, Marshall, Story	48 min
Jun 10, 11:08 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Marshall, Tama	52 min
Jun 10, 11:15 AM CDT	Severe Thunderstorm Warning	DVN	Benton	60 min
Jun 10, 11:26 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Johnson, Louisa, Muscatine, Scott	64 min
Jun 10, 11:33 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	27 min
Jun 10, 11:36 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Linn	54 min
Jun 10, 11:38 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Johnson, Jones, Linn	67 min
Jun 10, 11:58 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	15 min
Jun 10, 12:07 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Dubuque, Jackson	68 min
Jun 10, 12:26 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque	45 min
Jun 10, 12:28 PM CDT	Severe Thunderstorm Warning	ARX	Clayton, Fayette	62 min
Jun 10, 3:22 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Marion, Monroe	38 min
Jun 10, 3:42 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Lucas, Wayne	48 min
Jun 10, 3:57 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Mahaska, Marion, Monroe, Wapello	63 min
Jun 10, 4:27 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Lucas, Wayne	48 min
Jun 10, 5:00 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Mahaska, Monroe, Wapello	19 min
Jun 10, 5:19 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Louisa, Muscatine, Washington	56 min
Jun 10, 5:30 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Muscatine, Scott, Washington	60 min
Jun 10, 5:37 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Van Buren	68 min
Jun 10, 5:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Louisa, Muscatine	52 min
Jun 10, 6:17 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Clinton, Scott	58 min
Jun 10, 6:23 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Clinton, Scott	52 min
Jun 10, 7:00 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk	30 min
Jun 10, 7:03 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Story	42 min
Jun 10, 7:12 PM CDT	Severe Thunderstorm Warning	ARX	Floyd	34 min
Jun 10, 7:13 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin	51 min
Jun 10, 7:30 PM CDT	Severe Thunderstorm Warning	DVN	Lee	75 min
Jun 10, 7:33 PM CDT	Severe Thunderstorm Warning	ARX	Howard	26 min
Jun 11, 4:36 AM CDT	Severe Thunderstorm Warning	OAX	Fremont	39 min
Jun 11, 4:51 AM CDT	Severe Thunderstorm Warning	OAX	Fremont	54 min
Jun 11, 5:02 AM CDT	Severe Thunderstorm Warning	OAX	Page	43 min
Jun 11, 5:26 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adams, Taylor	49 min
Jun 11, 5:28 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	47 min
Jun 11, 5:46 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Harrison, Mills, Pottawattamie, Shelby	44 min
Jun 11, 5:52 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Montgomery, Page, Pottawattamie	38 min
Jun 11, 5:59 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Adams, Cass, Ringgold, Taylor, Union	61 min
Jun 11, 6:25 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Montgomery, Page	20 min
Jun 11, 6:29 AM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	20 min
Jun 11, 6:34 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Dallas, Guthrie	41 min
Jun 11, 6:43 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adams, Clarke, Decatur, Ringgold, Taylor, Union	47 min
Jun 11, 6:52 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Boone, Carroll, Greene, Guthrie	53 min
Jun 11, 6:57 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie, Madison, Polk, Warren	48 min
Jun 11, 7:15 AM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Clarke, Decatur, Lucas, Wayne	45 min
Jun 11, 7:20 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Story	40 min
Jun 11, 7:38 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Lucas, Mahaska, Marion, Monroe, Wapello, Warren	52 min
Jun 11, 7:44 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hardin, Jasper, Mahaska, Marion, Marshall and 4 more	46 min
Jun 11, 7:49 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Appanoose, Davis, Decatur, Lucas, Monroe, Ringgold and 2 more	56 min
Jun 11, 7:55 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Grundy, Jasper, Marshall, Story, Tama	50 min
Jun 11, 8:11 AM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Van Buren	41 min
Jun 11, 8:12 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Mahaska, Monroe, Poweshiek, Wapello	48 min
Jun 11, 8:19 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Henry, Iowa, Jefferson, Johnson, Keokuk, Louisa and 1 more	71 min
Jun 11, 8:25 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Black Hawk, Grundy, Hardin, Jasper, Mahaska, Marion and 3 more	65 min
Jun 11, 8:31 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Buchanan, Delaware, Iowa, Johnson, Linn	74 min
Jun 11, 8:34 AM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Iowa, Johnson, Keokuk, Washington	56 min
Jun 11, 8:38 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Franklin, Grundy, Hardin	67 min
Jun 11, 8:45 AM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Wayne	60 min
Jun 11, 8:54 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	52 min
Jun 11, 9:18 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Clinton, Jackson, Johnson, Louisa, Muscatine and 1 more	52 min
Jun 11, 9:20 AM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Louisa	54 min
Jun 11, 9:35 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Dubuque, Jackson, Johnson, Jones and 1 more	37 min
Jun 11, 11:18 AM CDT	Severe Thunderstorm Warning	DVN	Iowa, Keokuk, Washington	22 min
Jun 11, 11:21 AM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Lee	54 min
Jun 13, 7:43 AM CDT	Severe Thunderstorm Warning	FSD	Woodbury	47 min
Jun 13, 8:13 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	47 min
Jun 13, 8:38 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	52 min
Jun 13, 9:06 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	39 min
Jun 13, 9:13 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Cass	47 min
Jun 13, 9:22 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	53 min
Jun 13, 9:45 AM CDT	Severe Thunderstorm Warning	OAX	Montgomery	30 min
Jun 13, 9:48 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	42 min
Jun 13, 10:18 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	42 min
Jun 13, 10:54 AM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	51 min
Jun 13, 11:48 AM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	27 min
Jun 13, 12:59 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Washington	46 min
Jun 17, 3:26 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee	34 min
Jun 17, 3:53 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas, Sac	52 min
Jun 17, 4:31 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Calhoun, Greene, Hamilton, Webster	44 min
Jun 17, 4:52 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Boone, Hamilton, Hardin, Marshall, Story	53 min
Jun 17, 5:13 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene, Hamilton, Webster	32 min
Jun 17, 5:32 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Jasper, Marshall, Story, Tama	43 min
Jun 17, 5:34 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Jasper, Marshall, Polk, Story	41 min
Jun 17, 5:43 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Marshall, Tama	47 min
Jun 17, 5:49 AM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Marshall, Poweshiek, Tama	56 min
Jun 17, 5:52 AM CDT	Severe Thunderstorm Warning	DVN	Johnson, Louisa, Muscatine, Washington	53 min
Jun 17, 6:08 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marshall, Poweshiek	67 min
Jun 17, 6:09 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Iowa	66 min
Jun 17, 6:45 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Johnson, Keokuk, Linn, Washington	60 min
Jun 17, 6:50 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Poweshiek	55 min
Jun 17, 7:08 AM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Cedar, Johnson, Jones, Keokuk, Linn, Louisa and 2 more	52 min
Jun 17, 7:17 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Des Moines, Henry, Jefferson, Keokuk, Louisa, Washington	58 min
Jun 17, 7:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Clinton, Jackson, Muscatine, Scott	55 min
Jun 17, 7:57 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Des Moines, Henry, Lee, Louisa, Van Buren	63 min
Jun 17, 8:06 AM CDT	Severe Thunderstorm Warning	DVN	Jefferson, Lee, Van Buren	39 min
Jun 17, 8:43 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Lee, Van Buren	62 min
Jun 17, 3:29 PM CDT	Severe Thunderstorm Warning	DVN	Lee	61 min
Jun 17, 4:43 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	32 min
Jun 17, 5:10 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, O'Brien, Osceola, Plymouth, Sioux	50 min
Jun 17, 5:54 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola and 2 more	51 min
Jun 23, 9:38 PM CDT	Severe Thunderstorm Warning	FSD	Osceola	37 min
Jun 28, 4:24 AM CDT	Severe Thunderstorm Warning	FSD	Lyon	66 min
Jun 28, 4:37 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Plymouth, Sioux	53 min
Jun 28, 5:00 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lyon, O'Brien, Osceola, Sioux	60 min
Jun 28, 5:58 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux	62 min
Jun 28, 6:30 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, O'Brien	45 min
Jun 28, 6:33 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth, Palo Alto	42 min
Jun 28, 7:13 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay	17 min
Jun 28, 7:16 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas and 1 more	44 min
Jun 28, 7:57 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Humboldt, Kossuth, Winnebago, Worth and 1 more	48 min
Jun 28, 8:36 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Worth	39 min
Jun 28, 8:44 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Howard, Mitchell	76 min
Jun 28, 1:29 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	46 min
Jun 28, 2:07 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	39 min
Jun 30, 12:43 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	19 min
Jun 30, 1:14 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Plymouth, Sioux, Woodbury	46 min
Jun 30, 1:34 AM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Sioux	26 min
Jun 30, 1:54 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux	51 min
Jun 30, 2:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Clay, Dickinson, O'Brien, Osceola	54 min
Jun 30, 2:40 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Emmet, Kossuth, Palo Alto	50 min

By county

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

55 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

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.