Alert archive / Iowa / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Iowa, 2025

592 severe thunderstorm warnings in 2025. 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 2025. Tap one for its archive.

Severe Thunderstorm Warnings: 592
Busiest month: July175 severe thunderstorm warnings
Busiest day: April 18, 202539 severe thunderstorm warnings

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

318 of 592 severe thunderstorm warnings covering Iowa in 2025 had a qualifying storm report inside them; 635 of 800 hail, wind and damage reports fell inside a warning, on average 24 minutes after it went out.

Iowa, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	592	318	46%	800	79%	24 min

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Des Moines, IA: severe thunderstorm warnings	254	125	51%	349	78%	23 min
NWS Omaha, NE: severe thunderstorm warnings	271	127	53%	461	87%	24 min
NWS Quad Cities, IA: severe thunderstorm warnings	141	87	38%	309	82%	28 min
NWS Sioux Falls, SD: severe thunderstorm warnings	332	191	42%	500	85%	22 min
NWS La Crosse, WI: severe thunderstorm warnings	133	60	55%	194	77%	22 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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
Feb 25, 9:42 PM CST	Severe Thunderstorm Warning	OAX	Montgomery, Page	33 min
Mar 14, 4:04 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Audubon, Cass, Guthrie	41 min
Mar 14, 4:07 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	53 min
Mar 14, 4:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adams, Clarke, Decatur, Ringgold, Taylor, Union	47 min
Mar 14, 4:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Clarke, Dallas, Guthrie, Madison, Union	41 min
Mar 14, 4:21 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	39 min
Mar 14, 4:24 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Mills, Montgomery, Pottawattamie, Shelby	51 min
Mar 14, 4:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Audubon, Carroll, Crawford, Greene, Guthrie	64 min
Mar 14, 4:52 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Pottawattamie, Shelby	38 min
Mar 14, 4:56 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene	49 min
Mar 14, 4:57 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Audubon, Cass	48 min
Mar 14, 5:01 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Clarke, Decatur, Lucas, Madison, Marion, Ringgold and 3 more	44 min
Mar 14, 5:03 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	42 min
Mar 14, 5:12 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Greene, Sac	48 min
Mar 14, 5:14 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	46 min
Mar 14, 5:19 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Dallas, Guthrie, Madison	41 min
Mar 14, 5:28 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Calhoun, Greene, Hamilton, Story, Webster	47 min
Mar 14, 5:32 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Jasper, Madison, Marion, Polk, Poweshiek and 1 more	43 min
Mar 14, 5:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Audubon, Boone, Carroll, Crawford, Dallas, Greene and 1 more	40 min
Mar 14, 5:41 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	49 min
Mar 14, 5:44 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Madison, Marion, Warren	31 min
Mar 14, 5:49 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Hamilton, Hancock, Humboldt, Kossuth, Palo Alto and 3 more	56 min
Mar 14, 5:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Boone, Grundy, Hamilton, Hardin, Jasper, Marshall and 2 more	66 min
Mar 14, 5:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Harrison	30 min
Mar 14, 6:04 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Crawford, Greene, Sac	41 min
Mar 14, 6:09 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Woodbury	51 min
Mar 14, 6:31 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Ida, O'Brien	44 min
Mar 14, 6:42 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Humboldt, Kossuth, Palo Alto, Pocahontas	36 min
Mar 14, 6:45 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, O'Brien, Plymouth, Sioux, Woodbury	45 min
Mar 14, 6:46 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Grundy, Jasper, Mahaska, Marshall, Poweshiek, Tama and 1 more	59 min
Mar 14, 6:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Iowa, Jefferson, Keokuk, Washington	56 min
Mar 14, 6:50 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin, Grundy, Hamilton, Hancock and 4 more	55 min
Mar 14, 6:50 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay	40 min
Mar 14, 7:01 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Jefferson, Van Buren	11 min
Mar 14, 7:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Jefferson, Van Buren	58 min
Mar 14, 7:11 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 3 more	64 min
Mar 14, 7:13 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Mitchell	47 min
Mar 14, 7:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton	40 min
Mar 14, 7:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Des Moines, Henry, Iowa, Johnson, Lee, Louisa and 1 more	49 min
Mar 14, 7:54 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Howard, Mitchell	51 min
Mar 14, 7:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Buchanan, Iowa, Johnson, Linn	64 min
Mar 14, 8:03 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Cedar, Henry, Johnson, Jones, Linn, Louisa and 2 more	57 min
Mar 14, 8:05 PM CDT	Severe Thunderstorm Warning	ARX	Fayette	40 min
Mar 14, 8:18 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Des Moines, Louisa, Muscatine, Scott	57 min
Mar 14, 8:22 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Fayette, Howard, Winneshiek	40 min
Mar 14, 8:58 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson, Jones, Linn	62 min
Mar 14, 9:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Clinton, Jackson, Jones, Muscatine, Scott	52 min
Mar 14, 9:26 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Clinton, Scott	49 min
Mar 14, 9:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Clinton, Jackson	82 min
Mar 19, 3:14 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	20 min
Mar 19, 3:52 AM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Marion, Poweshiek	23 min
Mar 19, 4:06 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas	24 min
Mar 19, 4:26 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Story	34 min
Mar 19, 4:44 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	46 min
Mar 19, 5:30 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Delaware, Johnson, Jones, Linn	45 min
Mar 19, 5:37 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Hardin	18 min
Mar 19, 6:42 AM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hardin	33 min
Mar 19, 8:57 AM CDT	Severe Thunderstorm Warning	DVN	Clinton	33 min
Mar 19, 11:46 AM CDT	Severe Thunderstorm Warning	DVN	Henry, Louisa, Washington	44 min
Mar 19, 12:36 PM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine	54 min
Mar 19, 1:01 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Muscatine, Scott	33 min
Mar 27, 5:20 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	25 min
Mar 27, 5:32 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	43 min
Mar 27, 5:52 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	21 min
Mar 29, 8:25 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	35 min
Mar 29, 9:15 PM CDT	Severe Thunderstorm Warning	OAX	Page	45 min
Mar 29, 11:50 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk, Warren	40 min
Mar 30, 12:30 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Tama	45 min
Apr 1, 10:06 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	39 min
Apr 1, 10:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Harrison, Monona, Pottawattamie, Shelby	50 min
Apr 1, 11:09 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	51 min
Apr 2, 12:05 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie, Shelby	27 min
Apr 17, 6:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Harrison, Pottawattamie	55 min
Apr 17, 7:48 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Mills	42 min
Apr 17, 7:49 PM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	Pottawattamie	56 min
Apr 17, 8:10 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Cass	65 min
Apr 17, 8:17 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Mills, Montgomery, Page	43 min
Apr 17, 8:27 PM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	33 min
Apr 17, 8:51 PM CDT	Severe Thunderstorm Warning	FSD	Clay, O'Brien, Osceola	24 min
Apr 17, 8:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Mills, Montgomery, Page	47 min
Apr 17, 9:07 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adams, Taylor	53 min
Apr 17, 9:12 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	48 min
Apr 17, 9:17 PM CDT	Severe Thunderstorm Warning	DMX	Emmet	32 min
Apr 17, 9:57 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	48 min
Apr 17, 10:00 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Madison	45 min
Apr 17, 10:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Clarke, Ringgold, Union	51 min
Apr 17, 10:43 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	47 min
Apr 17, 10:50 PM CDT	Severe Thunderstorm Warning	DMX	Polk, Warren	25 min
Apr 17, 11:03 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Warren	42 min
Apr 17, 11:24 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	36 min
Apr 18, 12:15 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	30 min
Apr 18, 12:39 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth	36 min
Apr 18, 12:59 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Buena Vista, Cherokee	46 min
Apr 18, 1:11 AM CDT	Severe Thunderstorm Warning	DVN	Johnson, Louisa, Muscatine, Washington	21 min
Apr 18, 1:16 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	44 min
Apr 18, 1:28 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Palo Alto, Pocahontas	32 min
Apr 18, 2:10 AM CDT	Severe Thunderstorm Warning	DMX	Hancock, Humboldt, Kossuth, Webster, Wright	50 min
Apr 18, 2:10 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux, Woodbury	35 min
Apr 18, 2:32 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin, Worth, Wright	43 min
Apr 18, 2:44 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay	17 min
Apr 18, 2:57 AM CDT	Severe Thunderstorm Warning	DMX	Franklin	18 min
Apr 18, 3:12 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Butler, Franklin	48 min
Apr 18, 3:45 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Black Hawk, Bremer, Butler	45 min
Apr 18, 4:09 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	Fayette	51 min
Apr 18, 4:23 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Cerro Gordo, Franklin, Hancock, Worth, Wright	38 min
Apr 18, 4:34 AM CDT	Severe Thunderstorm Warning	ARX	Clayton	41 min
Apr 18, 4:48 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Howard, Mitchell	36 min
Apr 18, 4:48 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin	32 min
Apr 18, 4:51 AM CDT	Severe Thunderstorm Warning	ARX	Floyd	24 min
Apr 18, 5:09 AM CDT	Severe Thunderstorm Warning	DMX	Bremer, Butler	34 min
Apr 18, 5:32 AM CDT	Severe Thunderstorm Warning	ARX	Fayette	31 min
Apr 18, 5:53 AM CDT	Severe Thunderstorm Warning	ARX	Clayton	37 min
Apr 20, 5:25 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Lee, Van Buren, Washington	65 min
Apr 20, 6:32 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	43 min
Apr 20, 7:14 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	61 min
Apr 20, 7:25 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Des Moines, Johnson, Jones, Louisa, Muscatine and 1 more	65 min
Apr 20, 8:08 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Muscatine, Scott	67 min
Apr 21, 10:29 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	46 min
Apr 21, 11:02 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	30 min
Apr 22, 10:20 PM CDT	Severe Thunderstorm Warning	DMX	Marshall, Story	55 min
Apr 22, 10:36 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	54 min
Apr 22, 11:02 PM CDT	Severe Thunderstorm Warning	DMX	Marshall	43 min
Apr 22, 11:26 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson	49 min
Apr 22, 11:44 PM CDT	Severe Thunderstorm Warning	DMX	Marshall, Tama	46 min
Apr 23, 2:23 AM CDT	Severe Thunderstorm Warning	FSD	Woodbury	37 min
Apr 23, 4:24 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	22 min
Apr 23, 6:06 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	39 min
Apr 23, 6:22 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall	38 min
Apr 23, 6:38 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Marshall, Tama	52 min
Apr 23, 6:40 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Poweshiek, Tama	36 min
Apr 23, 6:43 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	47 min
Apr 23, 7:01 PM CDT	Severe Thunderstorm Warning	DVN	Benton	31 min
Apr 23, 7:14 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas, Webster	46 min
Apr 23, 7:43 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Sac	47 min
Apr 23, 7:52 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	38 min
Apr 23, 7:58 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Webster	47 min
Apr 23, 8:02 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hamilton, Hardin, Wright	43 min
Apr 23, 8:16 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Greene	44 min
Apr 23, 8:25 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hardin	50 min
Apr 23, 9:09 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler	51 min
Apr 23, 9:15 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Butler, Grundy	29 min
Apr 23, 9:35 PM CDT	Severe Thunderstorm Warning	ARX	Fayette	55 min
Apr 24, 4:07 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	38 min
Apr 24, 4:53 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	37 min
Apr 24, 6:09 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	36 min
Apr 24, 6:21 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	24 min
Apr 24, 6:40 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	23 min
Apr 24, 7:12 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Guthrie	48 min
Apr 28, 8:51 AM CDT	Severe Thunderstorm Warning	DMX	Bremer	24 min
Apr 28, 12:56 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	34 min
Apr 28, 2:44 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Osceola	46 min
Apr 28, 2:50 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, O'Brien, Osceola	21 min
Apr 28, 3:25 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Osceola	35 min
Apr 28, 4:13 PM CDT	Severe Thunderstorm Warning	DMX	Emmet	47 min
Apr 28, 4:34 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson	41 min
Apr 28, 4:56 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	49 min
Apr 28, 5:08 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson	52 min
Apr 28, 5:40 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	36 min
Apr 28, 6:06 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux	39 min
Apr 28, 6:41 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	49 min
Apr 28, 6:43 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Winnebago	33 min
Apr 28, 7:13 PM CDT	Severe Thunderstorm Warning	FSD	Osceola	47 min
Apr 28, 7:29 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Winnebago	31 min
Apr 28, 7:54 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Plymouth	51 min
Apr 28, 8:34 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Winnebago	41 min
Apr 28, 8:40 PM CDT	Severe Thunderstorm Warning	DMX	Cass	39 min
Apr 28, 8:51 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto	24 min
Apr 28, 8:58 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	47 min
Apr 28, 9:06 PM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth, Palo Alto	39 min
Apr 28, 9:10 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	26 min
Apr 28, 9:52 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Story	38 min
Apr 28, 10:13 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hardin, Marshall, Story, Tama	47 min
May 19, 4:15 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Warren	30 min
May 19, 4:30 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk, Warren	30 min
May 19, 4:55 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Polk, Story	35 min
May 19, 5:18 PM CDT	Severe Thunderstorm Warning	DMX	Hardin, Marshall, Story	27 min
May 19, 6:44 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	46 min
May 19, 7:27 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	33 min
May 19, 7:59 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	15 min
May 20, 1:39 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Muscatine, Scott	66 min
Jun 2, 4:07 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	38 min
Jun 2, 4:49 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	26 min
Jun 2, 5:12 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Osceola, Sioux	48 min
Jun 2, 5:41 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, O'Brien, Osceola, Sioux	49 min
Jun 2, 5:50 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth	40 min
Jun 2, 6:23 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Sioux	52 min
Jun 2, 6:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Plymouth	49 min
Jun 2, 6:48 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	27 min
Jun 2, 7:13 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	32 min
Jun 2, 8:06 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	24 min
Jun 2, 8:22 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	23 min
Jun 3, 4:33 PM CDT	Severe Thunderstorm Warning	DMX	Davis	42 min
Jun 3, 4:34 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	56 min
Jun 3, 5:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren	65 min
Jun 3, 6:23 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee, Louisa, Muscatine, Scott	67 min
Jun 3, 7:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Clinton, Muscatine, Scott	52 min
Jun 3, 7:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Clinton	56 min
Jun 11, 1:33 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Osceola	27 min
Jun 11, 1:56 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Osceola	49 min
Jun 11, 2:21 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Dickinson, O'Brien, Osceola	24 min
Jun 11, 2:45 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Dickinson, Osceola	45 min
Jun 11, 2:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Plymouth, Sioux	40 min
Jun 11, 2:58 PM CDT	Severe Thunderstorm Warning	DMX	Emmet	47 min
Jun 11, 3:29 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Emmet, Palo Alto	16 min
Jun 11, 3:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Emmet, Kossuth, Palo Alto	49 min
Jun 11, 3:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Buena Vista, Cherokee, Ida	40 min
Jun 11, 3:58 PM CDT	Severe Thunderstorm Warning	DMX	Pocahontas	32 min
Jun 11, 4:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Hancock, Humboldt, Kossuth, Palo Alto, Winnebago	45 min
Jun 11, 4:34 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Palo Alto, Pocahontas	26 min
Jun 11, 4:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Cerro Gordo, Hancock, Humboldt, Kossuth, Wright	51 min
Jun 11, 5:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Cerro Gordo, Franklin, Hancock, Hardin, Wright	45 min
Jun 11, 6:10 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hamilton, Hardin, Wright	65 min
Jun 11, 6:30 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hamilton, Hardin	45 min
Jun 11, 7:25 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Marshall, Tama	65 min
Jun 11, 7:34 PM CDT	Severe Thunderstorm Warning	ARX	Clayton, Fayette	41 min
Jun 11, 7:39 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware	81 min
Jun 11, 8:03 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	23 min
Jun 11, 8:06 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	54 min
Jun 11, 8:11 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque	64 min
Jun 11, 8:43 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware, Jones, Linn	51 min
Jun 12, 7:14 PM CDT	Severe Thunderstorm Warning	ARX	Mitchell	46 min
Jun 12, 7:43 PM CDT	Severe Thunderstorm Warning	ARX	Mitchell	28 min
Jun 12, 8:34 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	26 min
Jun 14, 5:47 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth	28 min
Jun 14, 5:51 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth	24 min
Jun 14, 6:30 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	45 min
Jun 14, 6:32 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	43 min
Jun 14, 6:36 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth	39 min
Jun 14, 7:08 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	52 min
Jun 14, 7:13 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	23 min
Jun 14, 9:48 PM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	27 min
Jun 15, 8:24 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	51 min
Jun 15, 7:50 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	40 min
Jun 15, 8:14 PM CDT	Severe Thunderstorm Warning	DMX	Taylor	16 min
Jun 15, 8:47 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Pottawattamie	43 min
Jun 15, 8:48 PM CDT	Severe Thunderstorm Warning	DMX	Cass	31 min
Jun 16, 7:26 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	49 min
Jun 16, 9:57 AM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Winnebago	48 min
Jun 16, 2:16 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware, Linn	40 min
Jun 16, 4:45 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	45 min
Jun 16, 4:54 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth, Woodbury	51 min
Jun 16, 5:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Monona	40 min
Jun 16, 5:33 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Buena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth and 1 more	42 min
Jun 16, 6:07 PM CDT	Severe Thunderstorm Warning	DMX	Sac	38 min
Jun 16, 6:12 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Buena Vista, Cherokee, Clay, Ida, Woodbury	33 min
Jun 16, 6:15 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Palo Alto, Pocahontas	60 min
Jun 16, 6:43 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Crawford, Sac	47 min
Jun 16, 6:58 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	47 min
Jun 16, 7:03 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Boone, Calhoun, Carroll, Crawford, Greene and 2 more	57 min
Jun 16, 7:16 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	44 min
Jun 16, 7:41 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	33 min
Jun 16, 8:47 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	32 min
Jun 16, 9:04 PM CDT	Severe Thunderstorm Warning	DMX	Cass	30 min
Jun 19, 11:14 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Mills, Pottawattamie	46 min
Jun 20, 12:35 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	40 min
Jun 20, 1:10 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	50 min
Jun 20, 1:53 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	52 min
Jun 20, 1:59 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Kossuth	46 min
Jun 20, 2:26 AM CDT	Severe Thunderstorm Warning	DMX	Taylor	49 min
Jun 20, 2:42 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Hancock, Kossuth, Palo Alto, Winnebago	48 min
Jun 20, 3:16 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Humboldt, Kossuth, Winnebago, Wright	44 min
Jun 20, 3:49 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Franklin, Hamilton, Humboldt, Webster, Wright	41 min
Jun 20, 4:01 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin, Hancock, Wright	44 min
Jun 20, 4:29 AM CDT	Severe Thunderstorm Warning	DMX	Franklin, Grundy, Hamilton, Hardin, Webster, Wright	61 min
Jun 20, 4:43 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy	47 min
Jun 20, 5:19 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Hamilton, Hardin, Marshall, Story and 1 more	56 min
Jun 20, 5:59 AM CDT	Severe Thunderstorm Warning	DMX	Dallas, Guthrie	31 min
Jun 20, 6:03 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Story, Tama	57 min
Jun 20, 6:09 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	51 min
Jun 20, 6:28 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Cerro Gordo, Worth	47 min
Jun 20, 8:19 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Marshall, Tama	41 min
Jun 20, 8:22 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan	53 min
Jun 20, 8:58 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Tama	62 min
Jun 23, 3:59 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	31 min
Jun 23, 4:09 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	51 min
Jun 23, 4:58 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass	47 min
Jun 23, 5:05 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery	24 min
Jun 23, 5:31 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk, Story	44 min
Jun 23, 6:18 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor, Union	42 min
Jun 23, 6:33 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	57 min
Jun 23, 6:36 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	39 min
Jun 23, 6:39 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Tama	34 min
Jun 23, 6:55 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	50 min
Jun 25, 3:59 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Wright	34 min
Jun 25, 4:06 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	36 min
Jun 25, 4:40 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	35 min
Jun 25, 5:04 PM CDT	Severe Thunderstorm Warning	DVN	Clinton	26 min
Jun 25, 5:46 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Wright	44 min
Jun 26, 1:54 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin, Worth	51 min
Jun 26, 2:19 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Hardin, Story	41 min
Jun 26, 2:48 PM CDT	Severe Thunderstorm Warning	ARX	Howard, Mitchell	42 min
Jun 26, 2:54 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hardin	51 min
Jun 26, 3:06 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Taylor, Union	39 min
Jun 26, 4:19 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Fayette, Howard, Winneshiek	56 min
Jun 26, 4:25 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Jasper, Madison, Polk, Story, Warren	50 min
Jun 26, 4:45 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Madison, Union, Warren	33 min
Jun 26, 5:01 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Tama	44 min
Jun 26, 5:44 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Jasper, Marshall, Poweshiek, Tama	46 min
Jun 26, 5:53 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Iowa	50 min
Jun 26, 7:50 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque	40 min
Jun 29, 3:38 AM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Plymouth, Sioux	37 min
Jun 29, 4:02 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Plymouth, Woodbury	43 min
Jun 29, 4:06 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien, Plymouth, Sioux	39 min
Jun 29, 4:42 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Plymouth, Woodbury	48 min
Jun 29, 4:50 AM CDT	Severe Thunderstorm Warning	DMX	Carroll, Crawford, Sac	55 min
Jun 29, 5:42 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Pottawattamie	33 min
Jun 29, 6:15 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	30 min
Jul 2, 6:59 PM CDT	Severe Thunderstorm Warning	ARX	Winneshiek	31 min
Jul 2, 7:21 PM CDT	Severe Thunderstorm Warning	ARX	Winneshiek	24 min
Jul 2, 7:23 PM CDT	Severe Thunderstorm Warning	ARX	Howard	37 min
Jul 2, 7:43 PM CDT	Severe Thunderstorm Warning	ARX	Fayette, Winneshiek	30 min
Jul 2, 7:48 PM CDT	Severe Thunderstorm Warning	ARX	Howard	25 min
Jul 3, 5:26 PM CDT	Severe Thunderstorm Warning	DMX	Franklin	22 min
Jul 3, 7:50 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	55 min
Jul 3, 8:32 PM CDT	Severe Thunderstorm Warning	DVN	Delaware	36 min
Jul 5, 3:12 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Iowa, Johnson, Keokuk, Muscatine, Washington	48 min
Jul 5, 3:59 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Muscatine, Scott	61 min
Jul 7, 7:59 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	61 min
Jul 7, 8:34 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	56 min
Jul 7, 8:36 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	39 min
Jul 7, 9:07 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	38 min
Jul 7, 9:29 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	46 min
Jul 7, 9:57 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Mills, Pottawattamie, Shelby	48 min
Jul 7, 10:34 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby	41 min
Jul 7, 11:20 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	25 min
Jul 7, 11:40 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass, Madison, Ringgold, Taylor and 1 more	50 min
Jul 7, 11:59 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	46 min
Jul 8, 12:22 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Clarke, Decatur, Ringgold, Taylor, Union	38 min
Jul 8, 12:37 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Dallas, Madison, Polk, Union, Warren	38 min
Jul 8, 12:56 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold, Taylor, Union	49 min
Jul 10, 1:01 AM CDT	Severe Thunderstorm Warning	FSD	Lyon	16 min
Jul 10, 1:30 AM CDT	Severe Thunderstorm Warning	FSD	Lyon	30 min
Jul 10, 3:14 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	46 min
Jul 10, 3:40 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	50 min
Jul 10, 4:27 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	33 min
Jul 10, 4:51 PM CDT	Severe Thunderstorm Warning	DVN	Keokuk, Washington	34 min
Jul 10, 5:06 PM CDT	Severe Thunderstorm Warning	DVN	Johnson	42 min
Jul 10, 6:18 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque	57 min
Jul 10, 7:16 PM CDT	Severe Thunderstorm Warning	DVN	Jackson	44 min
Jul 10, 7:56 PM CDT	Severe Thunderstorm Warning	DVN	Clinton	38 min
Jul 10, 10:01 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	44 min
Jul 10, 10:26 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	64 min
Jul 10, 10:47 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass, Guthrie	43 min
Jul 10, 11:10 PM CDT	Severe Thunderstorm Warning	DMX	Cass	35 min
Jul 10, 11:20 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Audubon, Cass, Dallas, Guthrie and 2 more	55 min
Jul 11, 12:04 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie, Madison, Polk, Warren	71 min
Jul 11, 12:57 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Jasper, Marion, Polk, Warren	48 min
Jul 11, 1:04 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Polk, Story	56 min
Jul 11, 1:40 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Marshall, Poweshiek, Tama	65 min
Jul 11, 2:22 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	53 min
Jul 11, 3:05 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Iowa, Johnson, Linn, Muscatine	33 min
Jul 11, 11:27 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware, Linn	37 min
Jul 11, 2:38 PM CDT	Severe Thunderstorm Warning	DMX	Davis	23 min
Jul 11, 2:58 PM CDT	Severe Thunderstorm Warning	DVN	Jefferson, Washington	47 min
Jul 11, 3:03 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	57 min
Jul 11, 3:54 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 2 more	66 min
Jul 11, 3:57 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware, Dubuque	63 min
Jul 11, 4:11 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	49 min
Jul 11, 4:16 PM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine	59 min
Jul 11, 4:26 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Muscatine, Scott	34 min
Jul 11, 4:33 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Dubuque, Jackson, Jones	57 min
Jul 11, 4:37 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Dubuque, Jackson, Jones	38 min
Jul 11, 4:39 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Louisa	66 min
Jul 11, 4:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Delaware, Dubuque	29 min
Jul 11, 4:47 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine, Scott	43 min
Jul 11, 4:52 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson, Scott	53 min
Jul 11, 5:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Scott	64 min
Jul 11, 5:39 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson, Scott	66 min
Jul 11, 5:49 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Louisa, Muscatine	56 min
Jul 11, 6:03 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine, Scott	57 min
Jul 11, 6:11 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Jefferson, Lee, Van Buren	64 min
Jul 11, 6:27 PM CDT	Severe Thunderstorm Warning	DVN	Scott	46 min
Jul 11, 6:58 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	31 min
Jul 11, 10:14 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Pocahontas, Sac	35 min
Jul 15, 8:29 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	61 min
Jul 15, 11:51 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Mills, Pottawattamie	24 min
Jul 16, 12:13 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Mills, Pottawattamie	47 min
Jul 19, 1:56 AM CDT	Severe Thunderstorm Warning	FSD	Dickinson	49 min
Jul 19, 2:48 AM CDT	Severe Thunderstorm Warning	FSD	Lyon, O'Brien, Osceola	27 min
Jul 19, 2:51 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	24 min
Jul 19, 3:08 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Clay, Dickinson, O'Brien, Osceola	52 min
Jul 19, 3:27 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Worth	18 min
Jul 19, 3:28 AM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	52 min
Jul 19, 5:42 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	25 min
Jul 19, 6:05 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Marshall, Polk, Poweshiek, Story and 2 more	40 min
Jul 19, 6:44 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Lucas, Mahaska, Marion, Marshall, Monroe and 3 more	46 min
Jul 19, 6:52 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Johnson, Jones, Keokuk, Linn and 1 more	53 min
Jul 19, 6:55 AM CDT	Severe Thunderstorm Warning	DMX	Poweshiek, Tama	35 min
Jul 19, 7:38 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	9 min
Jul 19, 11:13 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Wayne	33 min
Jul 20, 1:01 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth	44 min
Jul 20, 6:45 PM CDT	Severe Thunderstorm Warning	DMX	Polk, Warren	45 min
Jul 22, 7:11 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Madison	49 min
Jul 22, 7:21 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Warren	39 min
Jul 23, 12:20 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan	55 min
Jul 23, 12:26 AM CDT	Severe Thunderstorm Warning	ARX	Fayette	34 min
Jul 23, 2:16 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd	44 min
Jul 23, 2:46 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw	14 min
Jul 24, 12:06 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Boone, Calhoun, Carroll, Dallas, Greene and 3 more	39 min
Jul 24, 12:23 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Boone, Cass, Dallas, Greene and 2 more	52 min
Jul 24, 12:45 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie, Polk, Story	45 min
Jul 27, 6:52 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Lee, Van Buren	38 min
Jul 27, 11:05 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, Osceola	40 min
Jul 27, 11:21 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Howard, Mitchell	54 min
Jul 27, 11:23 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin, Hamilton, Hancock, Hardin, Humboldt and 7 more	52 min
Jul 27, 11:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Sioux	47 min
Jul 27, 11:29 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	Floyd	46 min
Jul 27, 11:33 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Osceola	57 min
Jul 27, 11:58 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Sioux	62 min
Jul 28, 12:01 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay, Dickinson, O'Brien, Osceola	44 min
Jul 28, 12:05 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek	55 min
Jul 28, 12:13 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 3 more	47 min
Jul 28, 12:14 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	46 min
Jul 28, 12:28 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Hancock, Humboldt, Kossuth, Palo Alto	47 min
Jul 28, 12:30 AM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more	45 min
Jul 28, 12:42 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay, Dickinson, O'Brien, Osceola	48 min
Jul 28, 1:00 AM CDT	Severe Thunderstorm Warning	FSD	Lyon, Plymouth, Sioux	15 min
Jul 28, 1:15 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 2 more	45 min
Jul 28, 1:18 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Clayton, Fayette, Winneshiek	57 min
Jul 28, 1:29 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, O'Brien	46 min
Jul 28, 1:41 AM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	49 min
Jul 28, 1:57 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien, Plymouth, Sioux	48 min
Jul 28, 2:03 AM CDT	Severe Thunderstorm Warning	ARX	Clayton	36 min
Jul 28, 2:28 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Plymouth, Woodbury	62 min
Jul 28, 3:07 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	38 min
Jul 28, 3:38 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	24 min
Jul 28, 8:46 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lyon, Sioux	44 min
Jul 28, 8:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lyon, Plymouth, Sioux	38 min
Jul 28, 9:23 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FSD	Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux	37 min
Jul 28, 9:55 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FSD	Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more	80 min
Jul 28, 10:29 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Emmet, Kossuth, Palo Alto	76 min
Jul 28, 10:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Calhoun, Humboldt, Pocahontas, Sac, Webster	70 min
Jul 28, 10:50 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Crawford, Greene, Sac, Webster	55 min
Jul 28, 11:10 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, O'Brien, Osceola	35 min
Jul 28, 11:17 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	73 min
Jul 28, 11:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Franklin, Hamilton, Hardin, Humboldt, Webster, Wright	63 min
Jul 28, 11:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	Howard, Mitchell, Winneshiek	45 min
Jul 28, 11:32 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Calhoun, Carroll, Greene, Hamilton, Hardin and 2 more	58 min
Jul 28, 11:47 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	Allamakee, Winneshiek	73 min
Jul 28, 11:51 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Worth	39 min
Jul 29, 12:11 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin, Hancock, Winnebago, Worth and 1 more	79 min
Jul 29, 12:20 AM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd, Howard, Mitchell	70 min
Jul 29, 12:47 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Grundy, Hardin	58 min
Jul 29, 1:12 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Buchanan	63 min
Jul 29, 1:16 AM CDT	Severe Thunderstorm Warning	ARX	Fayette	44 min
Jul 29, 1:23 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Black Hawk, Grundy, Tama	37 min
Jul 29, 1:27 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Delaware, Jones, Linn	78 min
Jul 29, 1:32 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Jasper, Marshall, Poweshiek, Tama	28 min
Jul 29, 1:54 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marshall, Poweshiek, Tama	66 min
Jul 29, 2:05 AM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Buchanan, Delaware, Jones, Linn	40 min
Jul 29, 2:24 AM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Washington	53 min
Jul 29, 2:31 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Dubuque, Jones	44 min
Jul 29, 2:47 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson, Muscatine, Scott	58 min
Jul 29, 2:55 AM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Johnson, Keokuk, Van Buren, Washington	41 min
Jul 29, 3:35 AM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Lee, Louisa	55 min
Jul 29, 8:27 AM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Sioux	19 min
Jul 29, 8:35 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson	40 min
Jul 29, 9:44 AM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Kossuth, Palo Alto, Pocahontas	34 min
Jul 29, 7:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lyon, Sioux	64 min
Jul 29, 8:05 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lyon	55 min
Jul 29, 8:48 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lyon, Plymouth, Sioux, Woodbury	42 min
Jul 29, 8:56 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Osceola, Sioux	49 min
Jul 29, 9:28 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Plymouth, Sioux, Woodbury	62 min
Jul 29, 9:43 PM CDT	Severe Thunderstorm Warning	OAX	Monona	47 min
Jul 29, 9:45 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, O'Brien, Osceola, Sioux	46 min
Jul 29, 10:14 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	46 min
Jul 29, 11:36 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Mills, Pottawattamie, Shelby	39 min
Jul 30, 12:13 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Marshall, Tama	47 min
Jul 30, 12:17 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	27 min
Jul 30, 12:25 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	42 min
Jul 30, 12:45 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Crawford, Greene, Guthrie	45 min
Jul 30, 1:07 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Tama	53 min
Jul 30, 1:15 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan	60 min
Jul 30, 1:16 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Dallas, Greene, Guthrie, Webster	44 min
Jul 30, 1:25 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Dallas, Guthrie	46 min
Jul 30, 1:46 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie, Hamilton, Polk and 1 more	59 min
Jul 30, 2:06 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	54 min
Jul 30, 2:09 AM CDT	Severe Thunderstorm Warning	ARX	Clayton, Fayette	51 min
Jul 30, 2:47 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	43 min
Jul 30, 3:06 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Dubuque, Jackson, Jones, Linn and 1 more	54 min
Jul 30, 3:57 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson, Scott	39 min
Jul 30, 7:50 AM CDT	Severe Thunderstorm Warning	DVN	Lee	40 min
Aug 7, 3:23 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Poweshiek	37 min
Aug 7, 8:52 AM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	38 min
Aug 9, 3:21 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee	39 min
Aug 9, 3:59 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee	26 min
Aug 9, 4:10 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Buena Vista, Cherokee, Ida	50 min
Aug 9, 5:29 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	Harrison, Mills, Pottawattamie	46 min
Aug 9, 5:44 AM CDT	Severe Thunderstorm Warning	FSD	Ida	16 min
Aug 9, 5:57 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery	33 min
Aug 9, 6:04 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	Harrison, Mills, Monona, Pottawattamie, Shelby	41 min
Aug 9, 6:10 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Crawford, Sac	50 min
Aug 9, 6:17 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Monona	43 min
Aug 9, 6:20 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	40 min
Aug 9, 6:40 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	Harrison, Monona, Pottawattamie, Shelby	50 min
Aug 9, 6:44 AM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	46 min
Aug 9, 6:47 AM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Carroll, Crawford	58 min
Aug 9, 6:59 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Sac	46 min
Aug 9, 6:59 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Pottawattamie, Shelby	46 min
Aug 9, 7:05 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Crawford, Greene	40 min
Aug 9, 7:06 AM CDT	Severe Thunderstorm Warning	FSD	Ida, Woodbury	54 min
Aug 9, 7:10 AM CDT	Severe Thunderstorm Warning	DMX	Crawford, Sac	50 min
Aug 9, 7:32 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Webster	43 min
Aug 9, 7:37 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Boone, Carroll, Greene, Guthrie	38 min
Aug 9, 7:47 AM CDT	Severe Thunderstorm Warning	DMX	Carroll, Greene	25 min
Aug 9, 7:58 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene, Hamilton, Webster	47 min
Aug 9, 8:10 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Humboldt, Pocahontas, Webster, Wright	50 min
Aug 10, 2:41 AM CDT	Severe Thunderstorm Warning	OAX	Mills	39 min
Aug 10, 3:10 AM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	65 min
Aug 10, 3:42 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Mills, Montgomery, Pottawattamie	33 min
Aug 10, 3:48 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Adams, Cass, Taylor	42 min
Aug 10, 4:17 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Adams, Audubon, Cass, Dallas, Guthrie and 1 more	43 min
Aug 10, 4:57 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie, Madison, Polk	36 min
Aug 10, 5:47 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque	31 min
Aug 15, 11:31 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien	59 min
Aug 15, 12:00 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida	45 min
Aug 15, 12:21 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Calhoun, Pocahontas, Sac	39 min
Aug 15, 12:50 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Hamilton, Hancock, Humboldt, Kossuth, Palo Alto and 5 more	40 min
Aug 15, 12:57 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Woodbury	48 min
Aug 15, 2:00 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin, Hancock, Wright	45 min
Aug 15, 2:27 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	33 min
Aug 15, 2:29 PM CDT	Severe Thunderstorm Warning	ARX	Floyd	46 min
Aug 15, 2:32 PM CDT	Severe Thunderstorm Warning	DMX	Butler	28 min
Aug 15, 2:59 PM CDT	Severe Thunderstorm Warning	DMX	Bremer, Butler	61 min
Aug 15, 3:04 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw	56 min
Aug 15, 3:36 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hamilton, Hardin, Marshall and 2 more	39 min
Aug 15, 4:15 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hardin, Marshall, Tama	45 min
Aug 15, 4:45 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	60 min
Aug 15, 4:54 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Marshall, Poweshiek, Tama	51 min
Aug 15, 5:22 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware, Iowa, Johnson, Linn	53 min
Aug 15, 5:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Benton, Cedar, Delaware, Johnson, Jones, Linn	61 min
Aug 15, 6:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Clinton, Jackson, Johnson, Jones, Linn and 2 more	62 min
Aug 16, 1:03 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Fayette, Winneshiek	42 min
Aug 16, 7:30 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque	60 min
Aug 17, 9:26 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jones, Scott	64 min
Aug 17, 9:57 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	44 min
Aug 18, 6:20 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	55 min
Sep 3, 5:56 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Calhoun, Greene, Webster	22 min
Sep 3, 6:43 AM CDT	Severe Thunderstorm Warning	DMX	Dallas, Greene, Guthrie	47 min
Sep 14, 2:54 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	36 min
Sep 14, 3:07 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Woodbury	24 min
Sep 14, 4:39 PM CDT	Severe Thunderstorm Warning	OAX	Monona	36 min
Sep 14, 5:01 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	29 min
Sep 16, 2:00 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas	30 min
Sep 16, 3:25 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Warren	20 min
Sep 16, 3:36 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	24 min
Sep 16, 3:42 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	33 min
Sep 16, 3:45 PM CDT	Severe Thunderstorm Warning	DMX	Union	30 min
Sep 16, 3:50 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Wright	25 min
Sep 16, 3:59 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	15 min
Sep 16, 4:01 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt	29 min
Sep 16, 4:13 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	32 min
Sep 16, 4:20 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	25 min
Sep 16, 4:26 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	34 min
Sep 16, 4:34 PM CDT	Severe Thunderstorm Warning	DMX	Union	21 min
Sep 16, 5:16 PM CDT	Severe Thunderstorm Warning	ARX	Floyd	29 min
Sep 16, 5:21 PM CDT	Severe Thunderstorm Warning	DMX	Pocahontas	24 min
Sep 16, 5:35 PM CDT	Severe Thunderstorm Warning	DMX	Franklin	25 min
Sep 16, 5:49 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Floyd	41 min
Sep 16, 5:52 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas, Sac	22 min
Sep 16, 6:28 PM CDT	Severe Thunderstorm Warning	DMX	Bremer	12 min
Sep 16, 7:57 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster	48 min
Sep 16, 8:23 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Webster	21 min
Sep 16, 9:23 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Osceola	39 min
Sep 17, 4:25 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold	50 min
Sep 17, 4:34 PM CDT	Severe Thunderstorm Warning	DMX	Clarke	26 min
Sep 17, 4:39 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	36 min
Sep 17, 4:55 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Lucas, Warren, Wayne	35 min
Sep 17, 5:03 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	16 min
Sep 17, 5:26 PM CDT	Severe Thunderstorm Warning	DMX	Marion, Warren	21 min
Sep 21, 7:35 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	40 min
Sep 21, 7:41 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Osceola	49 min
Sep 21, 8:20 PM CDT	Severe Thunderstorm Warning	FSD	Plymouth, Sioux	40 min
Sep 21, 8:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Plymouth, Sioux	50 min
Sep 22, 2:36 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee	54 min
Sep 22, 6:26 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	49 min
Sep 22, 6:31 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Clay, O'Brien	44 min
Sep 22, 7:14 PM CDT	Severe Thunderstorm Warning	FSD	Clay, O'Brien	46 min
Sep 22, 7:29 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	46 min
Sep 22, 7:40 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk	29 min
Sep 22, 7:55 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster, Wright	50 min
Sep 22, 7:59 PM CDT	Severe Thunderstorm Warning	DMX	Wright	46 min
Sep 22, 8:22 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	38 min
Sep 22, 8:35 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Webster	40 min
Sep 22, 9:02 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Hardin, Marshall, Story	43 min
Sep 22, 9:05 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Story, Webster	40 min
Sep 22, 9:38 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	52 min
Sep 22, 10:07 PM CDT	Severe Thunderstorm Warning	OAX	Monona	38 min
Sep 22, 10:16 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	27 min
Sep 22, 10:23 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene	52 min
Sep 22, 10:26 PM CDT	Severe Thunderstorm Warning	OAX	Monona	49 min
Oct 5, 7:39 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	36 min

By county

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

58 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 2024 2026

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.