Alert archive / Iowa / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Iowa, 2012

431 severe thunderstorm warnings in 2012. 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 2012. Tap one for its archive.

Severe Thunderstorm Warnings: 431
Busiest month: May165 severe thunderstorm warnings
Busiest day: May 4, 201235 severe thunderstorm 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.

Issued	Product	Office	Counties	Lasted
Mar 19, 3:48 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold, Union	42 min
Mar 19, 5:50 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	25 min
Mar 19, 8:38 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton, Fayette, Winneshiek	22 min
Mar 19, 9:01 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Winneshiek	44 min
Mar 29, 6:41 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	49 min
Mar 29, 7:25 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass	50 min
Mar 29, 7:30 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	30 min
Mar 29, 7:58 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery	32 min
Mar 29, 8:13 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	47 min
Mar 29, 8:29 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	31 min
Mar 29, 8:41 PM CDT	Severe Thunderstorm Warning	OAX	Page	34 min
Mar 29, 8:49 PM CDT	Severe Thunderstorm Warning	DMX	Taylor	44 min
Mar 29, 9:05 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	25 min
Mar 29, 9:27 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	33 min
Mar 29, 9:49 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	41 min
Mar 29, 9:53 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	31 min
Mar 29, 10:49 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	41 min
Mar 30, 12:01 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	29 min
Mar 30, 5:01 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	29 min
Mar 30, 5:35 PM CDT	Severe Thunderstorm Warning	OAX	Monona	25 min
Mar 30, 6:00 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	17 min
Mar 31, 9:09 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jones, Linn	66 min
Mar 31, 9:12 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Jones, Linn	63 min
Mar 31, 9:39 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jones, Scott	66 min
Mar 31, 10:17 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Scott	58 min
Mar 31, 11:51 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque, Jackson	54 min
Apr 14, 1:25 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	35 min
Apr 14, 1:59 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery	31 min
Apr 14, 2:06 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	24 min
Apr 14, 2:29 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	31 min
Apr 14, 2:41 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	49 min
Apr 14, 3:54 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Madison	36 min
Apr 14, 4:27 PM CDT	Severe Thunderstorm Warning	DMX	Madison, Warren	48 min
Apr 14, 5:07 PM CDT	Severe Thunderstorm Warning	DMX	Polk, Warren	38 min
Apr 14, 5:11 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	34 min
Apr 14, 5:24 PM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	25 min
Apr 14, 5:35 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	25 min
Apr 14, 5:43 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	32 min
Apr 14, 5:45 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk	45 min
Apr 14, 5:57 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	33 min
Apr 14, 6:02 PM CDT	Severe Thunderstorm Warning	OAX	Page	28 min
Apr 14, 6:12 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	48 min
Apr 14, 6:26 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold, Union	34 min
Apr 14, 6:27 PM CDT	Severe Thunderstorm Warning	DMX	Taylor	33 min
Apr 14, 6:48 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Clarke, Decatur, Madison, Ringgold, Taylor and 1 more	42 min
Apr 14, 6:50 PM CDT	Severe Thunderstorm Warning	DMX	Polk, Warren	34 min
Apr 14, 7:26 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Madison, Marion, Union, Warren	49 min
Apr 14, 7:32 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Jasper, Madison, Marion, Polk, Warren	43 min
Apr 14, 7:37 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Jasper, Polk, Story	38 min
Apr 14, 8:10 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Polk, Story	50 min
Apr 14, 8:14 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Mahaska, Marion, Monroe, Warren	46 min
Apr 14, 8:33 PM CDT	Severe Thunderstorm Warning	DMX	Poweshiek, Tama	57 min
Apr 14, 8:56 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Mahaska, Marion, Monroe, Wapello	49 min
Apr 14, 9:03 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Louisa, Muscatine, Scott	43 min
Apr 14, 9:14 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Johnson, Keokuk, Linn, Washington	61 min
Apr 14, 9:26 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Washington	64 min
Apr 14, 9:38 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Iowa, Johnson, Jones, Keokuk and 4 more	55 min
Apr 14, 9:42 PM CDT	Severe Thunderstorm Warning	DMX	Wapello	16 min
Apr 14, 9:55 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Jefferson, Keokuk, Louisa, Washington	65 min
Apr 15, 12:41 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	34 min
Apr 25, 6:59 PM CDT	Severe Thunderstorm Warning	DVN	Lee, Van Buren	61 min
Apr 25, 7:29 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	61 min
Apr 25, 7:51 PM CDT	Severe Thunderstorm Warning	DVN	Lee	54 min
May 1, 7:12 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	33 min
May 1, 7:41 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	34 min
May 1, 8:09 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	36 min
May 1, 9:15 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien, Plymouth, Sioux	30 min
May 1, 9:22 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Osceola	38 min
May 1, 9:41 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola	34 min
May 1, 9:59 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	46 min
May 1, 10:13 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay, Dickinson	17 min
May 1, 10:45 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Palo Alto	45 min
May 1, 11:24 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster, Wright	51 min
May 1, 11:35 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	25 min
May 2, 12:01 AM CDT	Severe Thunderstorm Warning	DMX	Carroll, Crawford, Sac	44 min
May 2, 12:38 AM CDT	Severe Thunderstorm Warning	DMX	Carroll, Crawford, Greene, Sac	52 min
May 2, 1:02 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Guthrie	43 min
May 2, 1:07 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Carroll, Dallas, Greene, Guthrie	38 min
May 2, 1:26 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton	30 min
May 2, 1:27 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Story, Webster	48 min
May 2, 1:39 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Polk, Story	51 min
May 2, 1:42 AM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	33 min
May 2, 1:53 AM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	52 min
May 2, 2:04 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hardin, Marshall, Story	41 min
May 2, 2:37 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Marshall, Tama	36 min
May 2, 3:18 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Poweshiek	15 min
May 2, 4:22 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Dubuque, Jackson, Jones	38 min
May 2, 4:26 AM CDT	Severe Thunderstorm Warning	DVN	Johnson, Louisa, Muscatine, Scott	49 min
May 3, 1:56 AM CDT	Severe Thunderstorm Warning	FSD	Woodbury	34 min
May 3, 2:11 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	34 min
May 3, 2:29 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	31 min
May 3, 5:11 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin	47 min
May 3, 5:44 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Howard, Mitchell	31 min
May 3, 6:11 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Howard, Winneshiek	34 min
May 3, 6:43 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Howard, Winneshiek	47 min
May 3, 2:24 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	21 min
May 3, 2:48 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	42 min
May 3, 3:31 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Winnebago	44 min
May 3, 4:03 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth	42 min
May 3, 4:18 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	42 min
May 3, 4:52 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	53 min
May 3, 5:06 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	39 min
May 3, 5:24 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	20 min
May 3, 6:13 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt	47 min
May 3, 6:57 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt	48 min
May 3, 7:41 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt	28 min
May 3, 7:57 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee	33 min
May 3, 8:23 PM CDT	Severe Thunderstorm Warning	DVN	Benton	15 min
May 3, 8:37 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee	38 min
May 3, 8:40 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Linn	35 min
May 3, 9:14 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Scott	31 min
May 3, 9:46 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Muscatine, Scott	43 min
May 3, 10:22 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	38 min
May 4, 12:06 AM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine	24 min
May 4, 2:09 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Union	51 min
May 4, 2:13 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	32 min
May 4, 2:45 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	45 min
May 4, 2:54 AM CDT	Severe Thunderstorm Warning	DMX	Adams	51 min
May 4, 3:07 AM CDT	Severe Thunderstorm Warning	DVN	Lee	38 min
May 4, 3:27 AM CDT	Severe Thunderstorm Warning	DMX	Taylor	48 min
May 4, 5:03 AM CDT	Severe Thunderstorm Warning	DMX	Lucas, Marion, Monroe	42 min
May 4, 6:26 AM CDT	Severe Thunderstorm Warning	DVN	Keokuk	49 min
May 4, 3:00 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	30 min
May 4, 3:14 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	31 min
May 4, 3:18 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Osceola, Sioux	42 min
May 4, 3:39 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth	36 min
May 4, 4:01 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien	29 min
May 4, 4:05 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth	55 min
May 4, 4:09 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Osceola	51 min
May 4, 4:12 PM CDT	Severe Thunderstorm Warning	FSD	Clay, O'Brien	33 min
May 4, 4:22 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	38 min
May 4, 4:25 PM CDT	Severe Thunderstorm Warning	FSD	Clay	35 min
May 4, 4:40 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	50 min
May 4, 4:59 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth, Palo Alto	46 min
May 4, 5:26 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Winnebago	49 min
May 4, 5:30 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	17 min
May 4, 5:46 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	15 min
May 4, 6:00 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	60 min
May 4, 6:20 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	55 min
May 4, 6:37 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	23 min
May 4, 7:15 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Howard	45 min
May 4, 9:39 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	36 min
May 4, 10:12 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Sioux	16 min
May 4, 10:27 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto, Pocahontas	48 min
May 5, 2:31 AM CDT	Severe Thunderstorm Warning	DMX	Carroll, Crawford	33 min
May 5, 1:57 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Winnebago	33 min
May 5, 2:28 PM CDT	Severe Thunderstorm Warning	DMX	Winnebago	32 min
May 5, 2:54 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Winnebago, Worth	66 min
May 5, 3:31 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	59 min
May 5, 4:29 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd	43 min
May 6, 1:55 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	35 min
May 6, 3:27 AM CDT	Severe Thunderstorm Warning	FSD	Clay	20 min
May 6, 4:32 AM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Wright	43 min
May 6, 5:14 AM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	46 min
May 6, 5:22 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery	38 min
May 6, 5:44 AM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Pottawattamie	31 min
May 6, 5:52 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Guthrie	53 min
May 6, 6:30 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	45 min
May 6, 7:05 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie, Madison	25 min
May 6, 7:09 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Madison	22 min
May 6, 7:29 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie, Madison	31 min
May 6, 7:59 AM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	46 min
May 6, 8:27 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	48 min
May 6, 9:03 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion	42 min
May 6, 9:12 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion	48 min
May 15, 7:05 PM CDT	Severe Thunderstorm Warning	DVN	Scott	40 min
May 19, 5:49 AM CDT	Severe Thunderstorm Warning	OAX	Monona	26 min
May 19, 6:55 PM CDT	Severe Thunderstorm Warning	OAX	Monona	50 min
May 19, 7:18 PM CDT	Severe Thunderstorm Warning	OAX	Monona	27 min
May 19, 7:43 PM CDT	Severe Thunderstorm Warning	OAX	Monona	32 min
May 19, 7:56 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Plymouth, Woodbury	38 min
May 19, 8:06 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	39 min
May 19, 8:28 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	47 min
May 19, 8:32 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona, Shelby	28 min
May 19, 8:44 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	31 min
May 19, 8:45 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	15 min
May 19, 9:00 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Calhoun, Carroll, Sac	27 min
May 19, 9:09 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Plymouth, Woodbury	51 min
May 19, 9:38 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien, Plymouth	37 min
May 19, 9:38 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	37 min
May 23, 6:21 PM CDT	Severe Thunderstorm Warning	OAX	Monona	35 min
May 23, 6:53 PM CDT	Severe Thunderstorm Warning	OAX	Monona	23 min
May 23, 6:56 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	49 min
May 23, 7:10 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Osceola	35 min
May 23, 7:16 PM CDT	Severe Thunderstorm Warning	FSD	Ida	27 min
May 23, 7:26 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Sac	49 min
May 23, 7:35 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	40 min
May 23, 8:15 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Crawford, Sac	45 min
May 23, 8:24 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	36 min
May 23, 8:28 PM CDT	Severe Thunderstorm Warning	FSD	Osceola	32 min
May 23, 8:51 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas	39 min
May 23, 9:11 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Osceola, Sioux	34 min
May 24, 3:13 PM CDT	Severe Thunderstorm Warning	ARX	Floyd	32 min
May 24, 3:30 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Hardin	45 min
May 24, 3:56 PM CDT	Severe Thunderstorm Warning	DMX	Bremer, Butler, Grundy	49 min
May 24, 4:26 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	49 min
May 24, 4:27 PM CDT	Severe Thunderstorm Warning	ARX	Winneshiek	33 min
May 24, 4:30 PM CDT	Severe Thunderstorm Warning	DMX	Bremer	19 min
May 24, 4:53 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton, Fayette, Winneshiek	37 min
May 24, 4:55 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Tama	50 min
May 24, 5:24 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	36 min
May 24, 5:51 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Marion, Poweshiek	39 min
May 25, 3:05 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold	43 min
May 25, 3:39 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	39 min
May 25, 4:23 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Wayne	27 min
May 25, 7:18 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Story	28 min
May 25, 11:46 PM CDT	Severe Thunderstorm Warning	OAX	Monona	44 min
May 26, 12:17 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	58 min
May 26, 12:18 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	57 min
May 26, 12:27 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	63 min
May 26, 1:06 AM CDT	Severe Thunderstorm Warning	FSD	Woodbury	39 min
May 26, 2:05 AM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	40 min
May 26, 2:46 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Woodbury	59 min
May 26, 3:04 AM CDT	Severe Thunderstorm Warning	DMX	Sac	41 min
May 27, 5:27 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	33 min
May 27, 5:58 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	32 min
May 27, 6:11 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	34 min
May 27, 6:24 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	36 min
May 27, 6:35 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	40 min
May 27, 7:11 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	34 min
May 27, 7:31 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Plymouth, Sioux	29 min
May 27, 7:54 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, O'Brien, Osceola, Sioux	36 min
May 27, 8:54 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson	36 min
May 27, 9:18 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth	27 min
May 27, 9:42 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	10 min
May 28, 4:16 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Muscatine, Scott	59 min
May 28, 5:14 PM CDT	Severe Thunderstorm Warning	DVN	Scott	61 min
May 28, 5:23 PM CDT	Severe Thunderstorm Warning	DVN	Lee, Van Buren	36 min
Jun 3, 9:23 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Wright	22 min
Jun 3, 10:51 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton	24 min
Jun 10, 4:28 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	36 min
Jun 10, 4:46 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	22 min
Jun 10, 5:50 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson	25 min
Jun 10, 8:05 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass	40 min
Jun 10, 9:34 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	41 min
Jun 10, 9:37 PM CDT	Severe Thunderstorm Warning	DMX	Adair	38 min
Jun 11, 1:35 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton, Fayette, Winneshiek	40 min
Jun 14, 4:37 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	38 min
Jun 14, 5:06 PM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	39 min
Jun 14, 5:38 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	52 min
Jun 14, 6:01 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista	29 min
Jun 14, 6:07 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	38 min
Jun 14, 6:25 PM CDT	Severe Thunderstorm Warning	FSD	Clay, O'Brien	35 min
Jun 14, 6:28 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay	17 min
Jun 14, 6:31 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Plymouth, Woodbury	29 min
Jun 14, 6:47 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	23 min
Jun 14, 6:50 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee	26 min
Jun 14, 6:56 PM CDT	Severe Thunderstorm Warning	FSD	Clay	34 min
Jun 14, 6:56 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	34 min
Jun 14, 7:09 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson	36 min
Jun 14, 7:10 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth, Winnebago	50 min
Jun 14, 7:17 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	43 min
Jun 14, 7:52 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth	38 min
Jun 15, 3:36 PM CDT	Severe Thunderstorm Warning	DMX	Polk, Warren	39 min
Jun 15, 4:01 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas, Sac	44 min
Jun 15, 4:42 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas	48 min
Jun 16, 1:40 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	50 min
Jun 16, 2:27 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry	36 min
Jun 16, 2:28 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold, Union	47 min
Jun 16, 2:44 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	46 min
Jun 16, 2:57 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	48 min
Jun 16, 3:30 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	30 min
Jun 16, 3:44 PM CDT	Severe Thunderstorm Warning	DMX	Davis	31 min
Jun 16, 4:07 PM CDT	Severe Thunderstorm Warning	DMX	Davis, Monroe, Wapello	38 min
Jun 16, 4:25 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Lee, Van Buren, Washington	65 min
Jun 16, 4:41 PM CDT	Severe Thunderstorm Warning	DMX	Wapello	26 min
Jun 16, 5:13 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Johnson, Louisa, Muscatine, Washington	47 min
Jun 16, 5:31 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	44 min
Jun 20, 5:42 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Pocahontas, Webster	20 min
Jun 20, 8:12 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	48 min
Jun 20, 8:53 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Story	24 min
Jun 24, 1:45 AM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Lucas, Monroe	45 min
Jun 24, 5:11 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	35 min
Jun 24, 5:13 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler	28 min
Jun 29, 7:50 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth, Woodbury	25 min
Jun 29, 3:06 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Madison, Polk, Warren	44 min
Jun 29, 4:09 PM CDT	Severe Thunderstorm Warning	DMX	Jasper	66 min
Jun 29, 4:27 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Marshall, Poweshiek, Tama	48 min
Jun 29, 4:33 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Johnson, Linn	72 min
Jun 29, 5:24 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Iowa, Johnson, Jones, Linn	66 min
Jun 29, 6:11 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	64 min
Jun 29, 8:19 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	26 min
Jun 29, 8:22 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Washington	38 min
Jun 29, 11:06 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson	25 min
Jun 30, 1:47 AM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	28 min
Jul 1, 6:55 AM CDT	Severe Thunderstorm Warning	DVN	Van Buren	35 min
Jul 1, 8:24 AM CDT	Severe Thunderstorm Warning	DMX	Mahaska	36 min
Jul 1, 8:30 AM CDT	Severe Thunderstorm Warning	DVN	Keokuk	27 min
Jul 7, 4:59 PM CDT	Severe Thunderstorm Warning	DVN	Clinton	37 min
Jul 9, 5:32 PM CDT	Severe Thunderstorm Warning	DMX	Polk	28 min
Jul 13, 7:22 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	53 min
Jul 13, 8:28 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Palo Alto	32 min
Jul 13, 9:01 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Kossuth, Palo Alto, Pocahontas	44 min
Jul 14, 3:00 PM CDT	Severe Thunderstorm Warning	DMX	Boone	45 min
Jul 14, 3:51 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Guthrie	39 min
Jul 18, 3:19 PM CDT	Severe Thunderstorm Warning	ARX	Winneshiek	41 min
Jul 18, 3:22 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw	38 min
Jul 18, 3:57 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Winneshiek	39 min
Jul 25, 5:11 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	34 min
Jul 25, 5:15 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson	39 min
Jul 25, 5:16 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	29 min
Jul 25, 5:25 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien	35 min
Jul 25, 5:31 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	59 min
Jul 25, 5:39 PM CDT	Severe Thunderstorm Warning	OAX	Monona	24 min
Jul 25, 5:43 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	47 min
Jul 25, 6:03 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson	42 min
Jul 25, 6:08 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	52 min
Jul 25, 6:17 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth, Palo Alto	43 min
Jul 25, 6:38 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto	52 min
Jul 25, 6:58 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	47 min
Jul 25, 7:09 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Pocahontas	51 min
Jul 25, 7:23 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Greene, Sac	37 min
Jul 25, 7:29 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Wright	46 min
Jul 25, 8:02 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Calhoun, Greene, Hamilton, Webster	43 min
Jul 25, 8:09 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin, Hamilton, Hancock, Hardin, Wright	51 min
Jul 25, 8:22 PM CDT	Severe Thunderstorm Warning	DMX	Marshall	53 min
Jul 25, 8:38 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	22 min
Jul 25, 8:39 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Hardin, Story, Webster	66 min
Jul 25, 9:04 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Story, Warren	41 min
Jul 25, 9:10 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hardin, Marshall, Story, Tama	50 min
Jul 25, 9:22 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware, Linn	53 min
Jul 25, 9:40 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw	35 min
Jul 25, 9:52 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	33 min
Jul 25, 9:57 PM CDT	Severe Thunderstorm Warning	DMX	Poweshiek, Tama	34 min
Jul 25, 10:03 PM CDT	Severe Thunderstorm Warning	ARX	Fayette, Winneshiek	43 min
Jul 25, 10:12 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson, Jones, Linn	63 min
Jul 25, 10:12 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	48 min
Jul 25, 10:22 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Iowa, Johnson, Linn	53 min
Jul 25, 10:25 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	65 min
Jul 25, 10:56 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Johnson, Jones, Linn	64 min
Jul 26, 4:02 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	28 min
Jul 26, 4:29 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	31 min
Jul 26, 4:44 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	46 min
Jul 26, 5:19 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	26 min
Aug 2, 3:22 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee	38 min
Aug 3, 10:43 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson	32 min
Aug 4, 12:05 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware, Iowa, Johnson, Keokuk and 2 more	55 min
Aug 4, 12:38 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 5 more	67 min
Aug 4, 12:59 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa, Muscatine, Scott	76 min
Aug 7, 7:45 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	45 min
Aug 7, 7:47 PM CDT	Severe Thunderstorm Warning	OAX	Mills	43 min
Aug 7, 9:17 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	24 min
Aug 8, 10:47 AM CDT	Severe Thunderstorm Warning	FSD	Sioux	28 min
Aug 8, 1:06 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	26 min
Aug 8, 2:00 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Greene	45 min
Aug 8, 2:37 PM CDT	Severe Thunderstorm Warning	DMX	Greene	53 min
Aug 8, 3:01 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie	43 min
Aug 8, 3:09 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Madison	51 min
Aug 8, 3:30 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Story	30 min
Aug 8, 3:54 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	38 min
Aug 8, 4:16 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	29 min
Aug 8, 4:45 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Winnebago	36 min
Aug 8, 4:48 PM CDT	Severe Thunderstorm Warning	DMX	Worth	27 min
Aug 8, 6:05 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin	25 min
Aug 8, 6:14 PM CDT	Severe Thunderstorm Warning	OAX	Mills	31 min
Aug 8, 6:29 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin	46 min
Aug 8, 6:32 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	28 min
Aug 8, 6:46 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	29 min
Aug 8, 6:56 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	34 min
Aug 8, 7:08 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Howard	52 min
Aug 8, 7:20 PM CDT	Severe Thunderstorm Warning	OAX	Page	40 min
Aug 9, 4:49 PM CDT	Severe Thunderstorm Warning	ARX	Fayette, Winneshiek	56 min
Aug 9, 6:44 PM CDT	Severe Thunderstorm Warning	DMX	Butler	16 min
Aug 9, 6:55 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Keokuk, Washington	46 min
Aug 9, 7:07 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Jones	38 min
Aug 15, 11:41 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	34 min
Aug 16, 12:02 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	28 min
Aug 16, 12:22 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	23 min
Aug 16, 12:27 AM CDT	Severe Thunderstorm Warning	OAX	Mills	33 min
Aug 16, 12:44 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Page	31 min
Aug 16, 1:30 AM CDT	Severe Thunderstorm Warning	OAX	Monona	30 min
Aug 16, 1:47 AM CDT	Severe Thunderstorm Warning	DMX	Crawford, Sac	28 min
Aug 16, 1:59 AM CDT	Severe Thunderstorm Warning	OAX	Monona	16 min
Aug 16, 2:40 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Guthrie	35 min
Aug 16, 3:10 AM CDT	Severe Thunderstorm Warning	DMX	Dallas	35 min
Aug 16, 3:37 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk	23 min
Aug 23, 7:45 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	45 min
Sep 4, 5:17 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee	28 min
Sep 4, 6:09 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton	36 min
Sep 4, 6:37 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton	38 min
Sep 4, 6:38 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee	52 min
Sep 4, 7:06 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee	24 min
Sep 4, 7:35 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	70 min
Sep 4, 8:14 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	46 min
Sep 4, 8:55 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, O'Brien, Osceola, Sioux	50 min
Sep 4, 8:57 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth, Sioux, Woodbury	48 min
Sep 4, 9:32 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, O'Brien, Osceola	58 min
Sep 4, 9:44 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth and 1 more	61 min
Sep 4, 10:01 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	44 min
Sep 4, 10:10 PM CDT	Severe Thunderstorm Warning	ARX	Clayton, Fayette	65 min
Sep 4, 10:15 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	45 min
Sep 4, 10:22 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto, Pocahontas	23 min
Sep 4, 10:28 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, O'Brien, Osceola	47 min
Sep 4, 10:42 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Winneshiek	33 min
Sep 4, 10:44 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth, Palo Alto	46 min
Sep 4, 10:45 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux	45 min
Sep 4, 10:47 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Kossuth, Palo Alto, Pocahontas	43 min
Sep 4, 11:09 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Winnebago	51 min
Sep 4, 11:14 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	46 min
Sep 4, 11:27 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Plymouth, Woodbury	48 min
Sep 4, 11:36 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton, Fayette, Winneshiek	47 min
Sep 4, 11:37 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	38 min
Sep 4, 11:59 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	61 min
Sep 5, 12:12 AM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	63 min
Sep 5, 12:14 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Worth	16 min
Sep 5, 12:14 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Humboldt, Pocahontas, Webster	46 min
Sep 5, 12:31 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Howard	44 min
Sep 5, 1:06 AM CDT	Severe Thunderstorm Warning	ARX	Fayette, Winneshiek	24 min
Sep 5, 1:09 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Grundy	29 min
Sep 5, 1:28 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee	32 min
Sep 5, 3:41 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Des Moines, Henry, Johnson, Louisa, Muscatine and 1 more	64 min
Sep 5, 4:16 AM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Jefferson, Lee, Louisa, Scott and 1 more	59 min
Sep 6, 9:06 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Sioux	39 min
Sep 6, 9:34 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, O'Brien	26 min
Sep 6, 10:38 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista	22 min
Sep 6, 10:42 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas, Sac	48 min
Sep 6, 11:15 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Greene, Webster	45 min
Sep 6, 11:53 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Greene	27 min
Sep 7, 1:18 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista	42 min
Sep 7, 1:20 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene, Story	40 min
Sep 7, 1:45 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Tama	45 min
Sep 7, 1:48 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas, Sac, Webster	42 min
Sep 7, 1:51 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Muscatine	39 min
Sep 7, 1:58 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Polk, Story	47 min
Sep 7, 3:05 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Story, Webster	40 min
Sep 7, 3:17 AM CDT	Severe Thunderstorm Warning	DVN	Louisa	13 min
Sep 7, 3:25 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Poweshiek	50 min
Sep 7, 3:56 AM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Washington	34 min
Sep 7, 4:13 AM CDT	Severe Thunderstorm Warning	DVN	Keokuk	32 min
Sep 7, 5:20 AM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine	40 min
Nov 10, 8:29 PM CST	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Woodbury	31 min

By county

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

59 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2011 2013

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.