Alert archive / South Dakota / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in South Dakota, 2015

582 severe thunderstorm warnings in 2015. 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 2015. Tap one for its archive.

Severe Thunderstorm Warnings: 582
Busiest month: June221 severe thunderstorm warnings
Busiest day: June 22, 201547 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.

439 of 582 severe thunderstorm warnings covering South Dakota in 2015 had a qualifying storm report inside them; 720 of 822 hail, wind and damage reports fell inside a warning, on average 24 minutes after it went out.

South Dakota, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	582	439	25%	822	88%	24 min

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Rapid City, SD: severe thunderstorm warnings	307	238	22%	460	88%	26 min
NWS Aberdeen, SD: severe thunderstorm warnings	205	150	27%	308	85%	22 min
NWS Sioux Falls, SD: severe thunderstorm warnings	175	123	30%	220	86%	20 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
Apr 12, 4:45 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Turner, Union	30 min
Apr 12, 5:20 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	25 min
Apr 12, 6:02 PM CDT	Severe Thunderstorm Warning	FSD	Union	28 min
Apr 23, 7:22 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	53 min
Apr 23, 8:15 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	24 min
Apr 23, 8:49 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	41 min
Apr 23, 9:27 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	32 min
Apr 24, 5:30 PM CDT	Severe Thunderstorm Warning	ABR	Hand	30 min
Apr 24, 5:30 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Sanborn	30 min
Apr 24, 5:36 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Douglas, Hutchinson	39 min
Apr 24, 6:09 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Sanborn	36 min
Apr 24, 6:10 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Douglas	50 min
Apr 24, 7:12 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Jerauld	11 min
Apr 24, 7:15 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Miner	30 min
May 2, 5:52 PM CDT	Severe Thunderstorm Warning	UNR	Todd	53 min
May 10, 9:54 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas	36 min
May 10, 10:16 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas, Hutchinson	29 min
May 10, 12:27 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	33 min
May 10, 1:40 PM CDT	Severe Thunderstorm Warning	FSD	Union	35 min
May 10, 1:57 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, McCook, Turner	33 min
May 10, 2:02 PM CDT	Severe Thunderstorm Warning	FSD	Union	28 min
May 10, 3:15 PM CDT	Severe Thunderstorm Warning	FSD	Union	30 min
May 10, 3:19 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	26 min
May 10, 3:27 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	33 min
May 10, 3:30 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	17 min
May 10, 3:44 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day	46 min
May 10, 3:44 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Day	46 min
May 10, 4:08 PM CDT	Severe Thunderstorm Warning	ABR	Spink	52 min
May 10, 4:56 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Sanborn	34 min
May 15, 5:13 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	62 min
May 25, 3:04 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix	41 min
May 25, 3:40 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson, Yankton	31 min
May 25, 4:53 PM CDT	Severe Thunderstorm Warning	FSD	Turner, Yankton	37 min
May 25, 5:24 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Turner	51 min
May 25, 6:00 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	27 min
May 28, 4:53 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	52 min
May 28, 4:56 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	49 min
May 28, 5:22 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	38 min
May 28, 5:59 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Spink	14 min
May 28, 6:49 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds	41 min
May 28, 7:14 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Marshall	21 min
May 28, 7:23 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	42 min
Jun 1, 6:24 PM CDT	Severe Thunderstorm Warning	UNR	Meade	66 min
Jun 1, 7:03 PM CDT	Severe Thunderstorm Warning	UNR	Meade	57 min
Jun 1, 7:55 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	65 min
Jun 1, 8:28 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	62 min
Jun 1, 8:47 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	58 min
Jun 1, 9:41 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington	64 min
Jun 1, 10:13 PM CDT	Severe Thunderstorm Warning	UNR	Butte	44 min
Jun 1, 10:36 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Pennington	37 min
Jun 2, 5:17 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	28 min
Jun 2, 5:41 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	24 min
Jun 2, 5:51 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	54 min
Jun 2, 7:58 PM CDT	Severe Thunderstorm Warning	UNR	Todd	17 min
Jun 2, 8:01 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	28 min
Jun 2, 9:10 PM CDT	Severe Thunderstorm Warning	UNR	Todd	35 min
Jun 2, 9:55 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	35 min
Jun 2, 11:12 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	46 min
Jun 3, 7:23 AM CDT	Severe Thunderstorm Warning	FSD	Moody	13 min
Jun 4, 2:09 AM CDT	Severe Thunderstorm Warning	UNR	Fall River	66 min
Jun 4, 2:54 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	66 min
Jun 4, 3:03 AM CDT	Severe Thunderstorm Warning	UNR	Fall River	57 min
Jun 4, 3:57 AM CDT	Severe Thunderstorm Warning	UNR	Fall River	63 min
Jun 4, 5:40 AM CDT	Severe Thunderstorm Warning	UNR	Jackson	51 min
Jun 6, 3:09 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	51 min
Jun 6, 5:53 PM CDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	52 min
Jun 6, 6:06 PM CDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	39 min
Jun 6, 6:22 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Hamlin	23 min
Jun 6, 6:32 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Union	28 min
Jun 6, 6:45 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix	33 min
Jun 6, 7:02 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix	24 min
Jun 6, 7:31 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Union	44 min
Jun 6, 8:22 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Moody	38 min
Jun 7, 3:19 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Lyman, Stanley	26 min
Jun 7, 4:52 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook, Miner	23 min
Jun 9, 3:24 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant	51 min
Jun 9, 4:09 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant	66 min
Jun 9, 4:56 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	64 min
Jun 9, 5:07 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Hamlin, Spink	53 min
Jun 9, 5:14 PM CDT	Severe Thunderstorm Warning	ABR	Deuel, Grant	23 min
Jun 9, 5:53 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Miner	38 min
Jun 9, 6:18 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	42 min
Jun 9, 6:29 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman	30 min
Jun 9, 6:50 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman, Stanley	26 min
Jun 9, 6:55 PM CDT	Severe Thunderstorm Warning	FSD	Moody	35 min
Jun 14, 4:44 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	61 min
Jun 14, 5:28 AM CDT	Severe Thunderstorm Warning	UNR	Ziebach	47 min
Jun 14, 5:31 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Ziebach	59 min
Jun 14, 5:41 AM CDT	Severe Thunderstorm Warning	ABR	Dewey	64 min
Jun 14, 5:48 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	57 min
Jun 14, 6:18 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	42 min
Jun 14, 7:26 AM CDT	Severe Thunderstorm Warning	UNR	Jackson	31 min
Jun 16, 7:21 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	39 min
Jun 16, 8:26 PM CDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	38 min
Jun 17, 6:31 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	59 min
Jun 17, 7:18 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	42 min
Jun 17, 7:58 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	24 min
Jun 17, 9:43 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	62 min
Jun 17, 10:04 PM CDT	Severe Thunderstorm Warning	UNR		24 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	64 min
Jun 17, 11:23 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	52 min
Jun 17, 11:27 PM CDT	Severe Thunderstorm Warning	UNR		33 min
Jun 17, 11:28 PM CDT	Severe Thunderstorm Warning	UNR	Custer	47 min
Jun 17, 11:44 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Meade, Pennington	61 min
Jun 17, 11:51 PM CDT	Severe Thunderstorm Warning	UNR		39 min
Jun 18, 12:16 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	44 min
Jun 18, 12:25 AM CDT	Severe Thunderstorm Warning	UNR	Bennett	39 min
Jun 18, 1:06 AM CDT	Severe Thunderstorm Warning	UNR		39 min
Jun 18, 1:15 AM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	60 min
Jun 18, 1:52 AM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	38 min
Jun 19, 2:31 AM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding	59 min
Jun 19, 12:51 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde, Sully	54 min
Jun 19, 1:10 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Sully	50 min
Jun 19, 1:10 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde	65 min
Jun 19, 1:35 PM CDT	Severe Thunderstorm Warning	ABR	Hand	43 min
Jun 19, 1:42 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde, Sully	48 min
Jun 19, 1:55 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde, Sully	50 min
Jun 19, 2:12 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde	78 min
Jun 19, 2:39 PM CDT	Severe Thunderstorm Warning	ABR	Hand	51 min
Jun 19, 2:45 PM CDT	Severe Thunderstorm Warning	ABR	Hyde, Sully	45 min
Jun 19, 3:06 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	39 min
Jun 19, 3:43 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	32 min
Jun 19, 4:11 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	34 min
Jun 19, 4:26 PM CDT	Severe Thunderstorm Warning	ABR	Hand	49 min
Jun 19, 4:59 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	31 min
Jun 19, 5:15 PM CDT	Severe Thunderstorm Warning	ABR	Hand	12 min
Jun 19, 5:36 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Moody	39 min
Jun 19, 6:03 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha, Moody	42 min
Jun 19, 6:53 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	52 min
Jun 19, 7:15 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	60 min
Jun 19, 8:12 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	63 min
Jun 19, 9:09 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade	66 min
Jun 19, 9:15 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	60 min
Jun 19, 9:30 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	60 min
Jun 19, 9:44 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	61 min
Jun 19, 9:49 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade, Pennington	56 min
Jun 19, 10:13 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	44 min
Jun 19, 10:31 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	59 min
Jun 19, 10:41 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Meade, Pennington	64 min
Jun 19, 11:07 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Lawrence, Meade, Pennington	53 min
Jun 19, 11:37 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	37 min
Jun 19, 11:46 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette, Pennington	59 min
Jun 20, 12:04 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	41 min
Jun 20, 12:11 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman, Stanley	49 min
Jun 20, 12:31 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette, Pennington	46 min
Jun 20, 12:54 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Faulk, Hand, Hughes, Hyde, Lyman and 2 more	46 min
Jun 20, 1:21 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld	39 min
Jun 20, 1:29 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hyde, Lyman, Spink, Sully	46 min
Jun 20, 1:36 AM CDT	Severe Thunderstorm Warning	UNR	Tripp	54 min
Jun 20, 1:48 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Davison, Douglas, Gregory	27 min
Jun 20, 1:53 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle	37 min
Jun 20, 1:59 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Davison, Jerauld, Sanborn	31 min
Jun 20, 2:17 AM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Douglas, Gregory, Hutchinson, Yankton	43 min
Jun 20, 2:26 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Davison, Hanson, Kingsbury, Lake, McCook and 2 more	34 min
Jun 20, 2:57 AM CDT	Severe Thunderstorm Warning	FSD	Brookings, Hutchinson, Kingsbury, Lake, Lincoln, McCook and 4 more	33 min
Jun 20, 3:19 AM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lincoln, Minnehaha, Moody	41 min
Jun 20, 4:00 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	29 min
Jun 20, 5:08 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	67 min
Jun 20, 5:53 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley, Sully	37 min
Jun 20, 6:02 PM CDT	Severe Thunderstorm Warning	UNR	Meade	58 min
Jun 20, 6:38 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	72 min
Jun 20, 6:40 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	65 min
Jun 20, 6:44 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	61 min
Jun 20, 6:45 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade, Pennington	60 min
Jun 20, 7:08 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	26 min
Jun 20, 7:25 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins, Ziebach	39 min
Jun 20, 7:31 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	59 min
Jun 20, 7:33 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	27 min
Jun 20, 8:03 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	43 min
Jun 20, 8:19 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	41 min
Jun 20, 8:34 PM CDT	Severe Thunderstorm Warning	UNR	Meade	44 min
Jun 20, 8:48 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	29 min
Jun 20, 9:36 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Potter, Walworth	25 min
Jun 21, 12:00 AM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	60 min
Jun 21, 12:15 AM CDT	Severe Thunderstorm Warning	UNR		60 min
Jun 21, 12:49 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Lawrence, Pennington	56 min
Jun 21, 12:58 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	44 min
Jun 21, 1:15 AM CDT	Severe Thunderstorm Warning	UNR	Bennett	60 min
Jun 21, 1:33 AM CDT	Severe Thunderstorm Warning	UNR	Jackson	57 min
Jun 21, 1:46 AM CDT	Severe Thunderstorm Warning	UNR	Custer	59 min
Jun 21, 1:50 AM CDT	Severe Thunderstorm Warning	UNR	Custer	55 min
Jun 21, 2:11 AM CDT	Severe Thunderstorm Warning	UNR	Bennett	64 min
Jun 21, 2:34 AM CDT	Severe Thunderstorm Warning	UNR		56 min
Jun 21, 2:43 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	46 min
Jun 21, 3:17 AM CDT	Severe Thunderstorm Warning	UNR	Bennett	58 min
Jun 21, 3:26 AM CDT	Severe Thunderstorm Warning	UNR	Bennett	64 min
Jun 21, 6:00 PM CDT	Severe Thunderstorm Warning	UNR	Harding	60 min
Jun 21, 6:45 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	60 min
Jun 21, 7:41 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	64 min
Jun 21, 9:06 PM CDT	Severe Thunderstorm Warning	ABR	Corson	39 min
Jun 21, 10:27 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	48 min
Jun 21, 10:38 PM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	52 min
Jun 21, 10:59 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	61 min
Jun 21, 11:03 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	42 min
Jun 21, 11:29 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	46 min
Jun 21, 11:41 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	64 min
Jun 21, 11:53 PM CDT	Severe Thunderstorm Warning	UNR	Butte	52 min
Jun 22, 12:13 AM CDT	Severe Thunderstorm Warning	ABR	Brown	47 min
Jun 22, 12:16 AM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	44 min
Jun 22, 12:20 AM CDT	Severe Thunderstorm Warning	ABR	Corson	55 min
Jun 22, 12:25 AM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	35 min
Jun 22, 12:37 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day	38 min
Jun 22, 12:41 AM CDT	Severe Thunderstorm Warning	UNR	Perkins, Ziebach	49 min
Jun 22, 12:56 AM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade, Pennington	64 min
Jun 22, 1:02 AM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	23 min
Jun 22, 1:04 AM CDT	Severe Thunderstorm Warning	ABR	Dewey	41 min
Jun 22, 1:08 AM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	22 min
Jun 22, 1:15 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Walworth	45 min
Jun 22, 1:23 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	22 min
Jun 22, 1:25 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	50 min
Jun 22, 1:30 AM CDT	Severe Thunderstorm Warning	ABR	Day, Grant, Roberts	45 min
Jun 22, 1:30 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Meade, Pennington	60 min
Jun 22, 1:44 AM CDT	Severe Thunderstorm Warning	ABR	Dewey, Potter, Walworth	46 min
Jun 22, 1:57 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Edmunds, McPherson, Walworth	44 min
Jun 22, 2:05 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	40 min
Jun 22, 2:13 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Grant, Roberts	47 min
Jun 22, 2:16 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Potter, Walworth	44 min
Jun 22, 2:20 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman, Stanley, Sully	40 min
Jun 22, 2:22 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Grant, Roberts	53 min
Jun 22, 2:22 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette	53 min
Jun 22, 2:23 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	52 min
Jun 22, 2:30 AM CDT	Severe Thunderstorm Warning	UNR	Tripp	30 min
Jun 22, 2:38 AM CDT	Severe Thunderstorm Warning	ABR	Lyman	37 min
Jun 22, 2:54 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	66 min
Jun 22, 3:00 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hughes, Hyde, Lyman, Stanley	45 min
Jun 22, 3:15 AM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	60 min
Jun 22, 3:18 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Lyman	57 min
Jun 22, 3:31 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Day, Faulk, Hand, Spink	44 min
Jun 22, 3:37 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hughes, Hyde, Lyman, Sully	53 min
Jun 22, 3:52 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Hanson	38 min
Jun 22, 4:21 AM CDT	Severe Thunderstorm Warning	FSD	Lake, Lincoln, McCook, Minnehaha, Turner	24 min
Jun 22, 4:33 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin, Spink	42 min
Jun 22, 4:41 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha, Moody, Turner	34 min
Jun 22, 5:06 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha	39 min
Jun 22, 5:20 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Union	40 min
Jun 24, 1:26 AM CDT	Severe Thunderstorm Warning	UNR	Pennington	49 min
Jun 24, 1:37 AM CDT	Severe Thunderstorm Warning	UNR	Pennington	53 min
Jun 24, 2:00 AM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	60 min
Jun 24, 2:28 AM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	43 min
Jun 24, 2:53 AM CDT	Severe Thunderstorm Warning	UNR	Pennington	52 min
Jun 24, 3:01 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	59 min
Jun 24, 3:32 AM CDT	Severe Thunderstorm Warning	UNR	Pennington	43 min
Jun 24, 3:37 AM CDT	Severe Thunderstorm Warning	UNR	Bennett, Fall River	68 min
Jun 24, 4:02 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	58 min
Jun 24, 4:56 AM CDT	Severe Thunderstorm Warning	UNR	Fall River	64 min
Jun 24, 5:43 AM CDT	Severe Thunderstorm Warning	UNR		46 min
Jun 24, 1:45 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	60 min
Jun 25, 2:18 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	57 min
Jun 25, 3:11 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	64 min
Jun 27, 5:07 PM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	38 min
Jun 27, 5:33 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	27 min
Jun 27, 5:57 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	48 min
Jun 27, 5:59 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson, Spink	46 min
Jun 27, 7:34 PM CDT	Severe Thunderstorm Warning	ABR	Spink	24 min
Jun 27, 7:38 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	37 min
Jun 27, 7:52 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	38 min
Jun 27, 8:07 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Sanborn	38 min
Jun 27, 8:31 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Davison, Jerauld, Sanborn	44 min
Jun 27, 9:04 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Hanson, Sanborn	41 min
Jun 27, 9:39 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Douglas, Hutchinson	23 min
Jun 28, 4:54 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	66 min
Jun 29, 2:16 AM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding	59 min
Jun 29, 3:33 AM CDT	Severe Thunderstorm Warning	UNR	Lawrence	57 min
Jun 30, 8:16 PM CDT	Severe Thunderstorm Warning	UNR	Harding	59 min
Jun 30, 9:13 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding, Perkins	62 min
Jun 30, 9:56 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins	64 min
Jun 30, 10:35 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Meade, Pennington, Perkins, Ziebach	85 min
Jul 1, 4:09 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hyde	66 min
Jul 1, 5:09 AM CDT	Severe Thunderstorm Warning	FSD	Brule	39 min
Jul 1, 11:06 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Pennington	54 min
Jul 1, 11:46 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	59 min
Jul 2, 12:18 AM CDT	Severe Thunderstorm Warning	UNR	Fall River	42 min
Jul 2, 12:37 AM CDT	Severe Thunderstorm Warning	UNR	Fall River	32 min
Jul 2, 5:28 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	62 min
Jul 2, 6:00 AM CDT	Severe Thunderstorm Warning	FSD	Brule	45 min
Jul 2, 6:44 AM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix	46 min
Jul 2, 6:51 AM CDT	Severe Thunderstorm Warning	ABR	Lyman	24 min
Jul 4, 6:21 PM CDT	Severe Thunderstorm Warning	UNR	Mellette	18 min
Jul 4, 6:27 PM CDT	Severe Thunderstorm Warning	ABR	Jones	63 min
Jul 4, 6:52 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	38 min
Jul 4, 6:55 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	65 min
Jul 4, 7:28 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	47 min
Jul 4, 7:37 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Mellette, Todd	83 min
Jul 4, 7:57 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	48 min
Jul 4, 8:25 PM CDT	Severe Thunderstorm Warning	UNR	Mellette	38 min
Jul 4, 8:33 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley, Sully	42 min
Jul 4, 8:36 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Todd	84 min
Jul 4, 8:44 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley	46 min
Jul 4, 8:46 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Lyman	43 min
Jul 4, 9:21 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley	39 min
Jul 4, 9:58 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	23 min
Jul 4, 9:59 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	61 min
Jul 4, 10:22 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	38 min
Jul 4, 10:44 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Potter, Walworth	31 min
Jul 4, 11:09 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	96 min
Jul 5, 1:40 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Faulk, Spink	50 min
Jul 5, 2:58 AM CDT	Severe Thunderstorm Warning	ABR	Brown	29 min
Jul 5, 3:23 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Spink	37 min
Jul 5, 3:49 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Spink	41 min
Jul 5, 4:26 PM CDT	Severe Thunderstorm Warning	UNR		35 min
Jul 5, 6:19 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Mellette, Todd	56 min
Jul 5, 6:21 PM CDT	Severe Thunderstorm Warning	UNR	Custer	54 min
Jul 5, 6:36 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Todd	84 min
Jul 5, 7:03 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Mellette, Todd	72 min
Jul 5, 7:24 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	51 min
Jul 5, 7:46 PM CDT	Severe Thunderstorm Warning	ABR	Grant, Roberts	44 min
Jul 5, 7:49 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	56 min
Jul 5, 8:38 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	82 min
Jul 5, 9:12 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	63 min
Jul 5, 9:12 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	48 min
Jul 5, 10:00 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	45 min
Jul 5, 10:12 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	22 min
Jul 5, 11:23 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison	37 min
Jul 5, 11:53 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Hutchinson, McCook	37 min
Jul 6, 12:20 AM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Turner	25 min
Jul 6, 1:11 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Union	49 min
Jul 12, 8:17 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	26 min
Jul 12, 8:23 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	52 min
Jul 12, 9:05 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington	55 min
Jul 12, 9:45 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	60 min
Jul 12, 10:41 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	49 min
Jul 12, 11:21 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman, Stanley	39 min
Jul 12, 11:57 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Lyman	63 min
Jul 13, 12:56 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	27 min
Jul 14, 5:43 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	50 min
Jul 14, 8:21 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	54 min
Jul 14, 9:09 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	66 min
Jul 15, 7:35 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	55 min
Jul 15, 8:28 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	62 min
Jul 16, 3:14 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	61 min
Jul 16, 3:27 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	29 min
Jul 16, 3:54 PM CDT	Severe Thunderstorm Warning	ABR	Brown	23 min
Jul 16, 5:12 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Spink	48 min
Jul 16, 5:49 PM CDT	Severe Thunderstorm Warning	ABR	Spink	16 min
Jul 16, 6:15 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	45 min
Jul 16, 6:58 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner	47 min
Jul 16, 7:28 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Moody	47 min
Jul 16, 8:25 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	30 min
Jul 17, 4:34 PM CDT	Severe Thunderstorm Warning	ABR	Marshall	41 min
Jul 17, 4:38 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk	52 min
Jul 17, 4:52 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	53 min
Jul 17, 5:07 PM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	38 min
Jul 17, 5:21 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	39 min
Jul 17, 5:31 PM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	59 min
Jul 17, 5:41 PM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	64 min
Jul 17, 6:02 PM CDT	Severe Thunderstorm Warning	ABR	Brown	43 min
Jul 17, 6:18 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day	57 min
Jul 17, 6:24 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	66 min
Jul 17, 6:44 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	47 min
Jul 17, 6:46 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	44 min
Jul 17, 6:57 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Spink	63 min
Jul 17, 7:02 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall, Roberts, Spink	28 min
Jul 17, 7:05 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	40 min
Jul 17, 7:15 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Spink	45 min
Jul 17, 7:25 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	20 min
Jul 17, 7:28 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Grant, Marshall, Roberts	62 min
Jul 17, 7:36 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Spink	54 min
Jul 17, 7:44 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Codington, Day, Spink	61 min
Jul 17, 7:48 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	72 min
Jul 17, 7:55 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day	50 min
Jul 17, 8:22 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin, Spink	38 min
Jul 17, 9:00 PM CDT	Severe Thunderstorm Warning	ABR	Grant, Roberts	45 min
Jul 17, 9:57 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Hamlin	48 min
Jul 17, 9:58 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson, Yankton	47 min
Jul 17, 10:22 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Hutchinson, Lincoln, Turner, Yankton	23 min
Jul 17, 10:26 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	79 min
Jul 17, 10:53 PM CDT	Severe Thunderstorm Warning	FSD	Union	52 min
Jul 19, 7:06 PM CDT	Severe Thunderstorm Warning	UNR	Todd	39 min
Jul 19, 7:24 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	51 min
Jul 19, 7:47 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	28 min
Jul 19, 7:58 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	21 min
Jul 19, 8:02 PM CDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	43 min
Jul 19, 8:33 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	42 min
Jul 20, 1:49 AM CDT	Severe Thunderstorm Warning	UNR	Tripp	56 min
Jul 23, 5:49 PM CDT	Severe Thunderstorm Warning	ABR	Corson	26 min
Jul 23, 6:14 PM CDT	Severe Thunderstorm Warning	ABR	Corson	46 min
Jul 23, 7:20 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	40 min
Jul 23, 7:24 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld, Sanborn	51 min
Jul 23, 7:49 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	41 min
Jul 23, 7:55 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Sanborn	33 min
Jul 23, 8:10 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Sanborn	50 min
Jul 23, 8:24 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson	51 min
Jul 23, 8:55 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	50 min
Jul 23, 9:48 PM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	42 min
Jul 23, 10:02 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	58 min
Jul 23, 10:19 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	41 min
Jul 23, 10:57 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Marshall	63 min
Jul 23, 11:38 PM CDT	Severe Thunderstorm Warning	FSD	Lake	14 min
Jul 23, 11:48 PM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	42 min
Jul 24, 12:16 AM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	44 min
Jul 24, 12:54 AM CDT	Severe Thunderstorm Warning	ABR	Roberts	28 min
Jul 24, 8:10 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	65 min
Jul 24, 8:39 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	36 min
Jul 24, 8:56 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	64 min
Jul 24, 8:56 PM CDT	Severe Thunderstorm Warning	UNR	Meade	37 min
Jul 24, 9:19 PM CDT	Severe Thunderstorm Warning	UNR	Meade	26 min
Jul 24, 9:42 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade	48 min
Jul 24, 9:53 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	67 min
Jul 24, 10:25 PM CDT	Severe Thunderstorm Warning	UNR	Meade	50 min
Jul 24, 10:45 PM CDT	Severe Thunderstorm Warning	UNR		60 min
Jul 24, 11:40 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	35 min
Jul 24, 11:43 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	47 min
Jul 25, 12:24 AM CDT	Severe Thunderstorm Warning	ABR	Dewey	51 min
Jul 25, 5:42 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Ziebach	44 min
Jul 25, 7:05 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette	55 min
Jul 25, 7:24 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	51 min
Jul 25, 8:14 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	32 min
Jul 25, 9:45 AM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	45 min
Jul 25, 10:52 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Davison, Douglas	38 min
Jul 25, 3:24 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson	45 min
Jul 25, 3:47 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	58 min
Jul 25, 4:18 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Potter, Walworth	28 min
Jul 25, 4:36 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	54 min
Jul 25, 4:41 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	49 min
Jul 25, 4:54 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Potter, Walworth	51 min
Jul 25, 4:56 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Potter, Walworth	49 min
Jul 25, 5:19 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	71 min
Jul 25, 5:38 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Hand, Hyde, Potter	67 min
Jul 25, 6:00 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Hand, Spink	60 min
Jul 25, 6:08 PM CDT	Severe Thunderstorm Warning	UNR		65 min
Jul 25, 6:46 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Day, Spink	59 min
Jul 25, 7:10 PM CDT	Severe Thunderstorm Warning	ABR	Hand	50 min
Jul 25, 7:36 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Spink	39 min
Jul 25, 7:54 PM CDT	Severe Thunderstorm Warning	ABR	Hand	51 min
Jul 25, 8:14 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld, Kingsbury, Sanborn	46 min
Jul 25, 8:25 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle, Brule, Jerauld	50 min
Jul 25, 8:47 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Brookings, Kingsbury	43 min
Jul 25, 9:11 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	37 min
Jul 25, 9:13 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Jerauld	47 min
Jul 25, 9:13 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	39 min
Jul 25, 9:17 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Lake, Miner	43 min
Jul 25, 9:19 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	40 min
Jul 25, 9:24 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner	36 min
Jul 25, 10:13 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Davison, Douglas	32 min
Jul 25, 10:43 PM CDT	Severe Thunderstorm Warning	FSD	Douglas, Hutchinson	47 min
Jul 25, 11:05 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Hutchinson	40 min
Jul 25, 11:47 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme	17 min
Jul 26, 4:07 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	27 min
Jul 26, 4:20 PM CDT	Severe Thunderstorm Warning	UNR	Todd	55 min
Jul 26, 4:47 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	43 min
Jul 26, 5:02 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	28 min
Jul 26, 7:04 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	56 min
Jul 26, 7:15 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	75 min
Jul 26, 8:26 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	64 min
Jul 26, 8:30 PM CDT	Severe Thunderstorm Warning	UNR	Butte	60 min
Jul 26, 9:10 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	95 min
Jul 27, 3:33 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	57 min
Jul 27, 4:26 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade	64 min
Jul 27, 4:33 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	57 min
Jul 27, 4:57 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade	33 min
Jul 27, 5:16 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	59 min
Jul 27, 5:25 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	65 min
Jul 27, 5:27 PM CDT	Severe Thunderstorm Warning	UNR	Meade	63 min
Jul 27, 6:25 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Meade, Pennington	80 min
Jul 27, 6:26 PM CDT	Severe Thunderstorm Warning	UNR	Meade	64 min
Jul 27, 6:55 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	65 min
Jul 27, 6:57 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Pennington	63 min
Jul 27, 7:09 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding, Meade, Perkins	51 min
Jul 27, 7:50 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Perkins, Ziebach	85 min
Jul 27, 7:54 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins, Ziebach	82 min
Jul 27, 8:01 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Jackson, Pennington	59 min
Jul 27, 8:37 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	68 min
Jul 27, 8:45 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	60 min
Jul 27, 9:14 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Ziebach	76 min
Jul 27, 9:28 PM CDT	Severe Thunderstorm Warning	UNR	Harding	37 min
Jul 27, 9:42 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	33 min
Jul 27, 9:43 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Haakon, Jackson, Mellette, Todd	62 min
Jul 27, 10:15 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman, Stanley, Sully	45 min
Jul 27, 10:17 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Potter, Walworth	58 min
Jul 27, 10:42 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Tripp	78 min
Jul 27, 10:58 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Mellette	47 min
Jul 27, 11:17 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Lyman	43 min
Jul 27, 11:36 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Mellette, Todd	69 min
Jul 27, 11:56 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hughes, Hyde, Lyman	49 min
Jul 28, 12:07 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Gregory, Jerauld	38 min
Jul 28, 12:23 AM CDT	Severe Thunderstorm Warning	UNR	Mellette, Tripp	37 min
Jul 28, 12:40 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle, Brule, Jerauld	50 min
Jul 28, 12:41 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Faulk, Hand, Hyde, Spink	49 min
Jul 28, 1:00 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	60 min
Jul 28, 1:23 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Day, Spink	56 min
Jul 28, 1:50 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Charles Mix, Douglas, Gregory	18 min
Aug 1, 5:41 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Spink	48 min
Aug 1, 6:55 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	46 min
Aug 3, 11:39 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	66 min
Aug 4, 2:14 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence	46 min
Aug 5, 7:21 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Pennington	54 min
Aug 5, 8:00 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Lawrence, Meade, Pennington	60 min
Aug 5, 8:07 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	53 min
Aug 6, 12:02 AM CDT	Severe Thunderstorm Warning	ABR	Brown	26 min
Aug 6, 12:51 AM CDT	Severe Thunderstorm Warning	ABR	Brown	39 min
Aug 6, 1:30 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	60 min
Aug 6, 2:49 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Hamlin	56 min
Aug 6, 3:16 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Hamlin	43 min
Aug 6, 3:57 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	26 min
Aug 6, 6:14 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	46 min
Aug 6, 6:50 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Moody	40 min
Aug 6, 7:22 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake, Moody	38 min
Aug 6, 7:26 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Moody	38 min
Aug 7, 4:48 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Tripp	42 min
Aug 7, 5:31 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	44 min
Aug 7, 5:41 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hyde, Potter, Sully	34 min
Aug 8, 3:28 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence	47 min
Aug 8, 4:05 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	55 min
Aug 8, 4:57 PM CDT	Severe Thunderstorm Warning	UNR	Meade	63 min
Aug 8, 5:36 PM CDT	Severe Thunderstorm Warning	UNR	Meade	54 min
Aug 8, 5:38 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	52 min
Aug 8, 6:26 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	64 min
Aug 8, 6:27 PM CDT	Severe Thunderstorm Warning	ABR	Stanley, Sully	63 min
Aug 8, 6:30 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	60 min
Aug 8, 7:12 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Potter, Stanley, Sully	48 min
Aug 8, 7:16 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Ziebach	59 min
Aug 8, 7:24 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	66 min
Aug 8, 8:06 PM CDT	Severe Thunderstorm Warning	UNR	Haakon	39 min
Aug 8, 8:13 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	62 min
Aug 8, 8:16 PM CDT	Severe Thunderstorm Warning	UNR	Butte	44 min
Aug 8, 8:23 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Potter	52 min
Aug 8, 9:06 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	69 min
Aug 8, 9:19 PM CDT	Severe Thunderstorm Warning	ABR	Jones	56 min
Aug 8, 10:55 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Pennington, Ziebach	65 min
Aug 9, 1:23 AM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	84 min
Aug 9, 5:17 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day	24 min
Aug 9, 7:31 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Grant	21 min
Aug 9, 1:00 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Potter, Walworth	45 min
Aug 9, 2:20 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk	40 min
Aug 9, 2:36 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo	39 min
Aug 9, 2:49 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld	41 min
Aug 9, 2:52 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde, Potter	38 min
Aug 9, 3:17 PM CDT	Severe Thunderstorm Warning	FSD	Moody	28 min
Aug 9, 3:24 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Jerauld, Sanborn	36 min
Aug 9, 3:29 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde	46 min
Aug 9, 3:57 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Jerauld, Sanborn	33 min
Aug 9, 4:01 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Spink	44 min
Aug 9, 4:25 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	35 min
Aug 9, 4:47 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Spink	43 min
Aug 9, 4:47 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld	28 min
Aug 9, 4:50 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson	40 min
Aug 9, 5:02 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury	43 min
Aug 9, 5:17 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld, Sanborn	28 min
Aug 9, 5:23 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	52 min
Aug 9, 5:26 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	34 min
Aug 9, 5:28 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Douglas, Hanson, Hutchinson	47 min
Aug 9, 5:30 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Hamlin, Spink	45 min
Aug 9, 5:41 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	34 min
Aug 9, 6:00 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	30 min
Aug 9, 6:02 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Turner, Yankton	43 min
Aug 9, 6:05 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner	25 min
Aug 9, 6:25 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	35 min
Aug 9, 6:26 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner, Moody	34 min
Aug 9, 6:27 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, McCook, Minnehaha, Turner	28 min
Aug 9, 6:44 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Turner, Yankton	46 min
Aug 9, 7:09 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Turner, Union, Yankton	51 min
Aug 9, 7:58 PM CDT	Severe Thunderstorm Warning	FSD	Union	47 min
Aug 9, 8:33 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Yankton	42 min
Aug 9, 9:08 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Union	67 min
Aug 9, 9:15 PM CDT	Severe Thunderstorm Warning	FSD	Union	20 min
Aug 11, 6:40 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	50 min
Aug 15, 8:12 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand	48 min
Aug 15, 11:28 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson	47 min
Aug 18, 4:41 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	49 min
Aug 26, 9:48 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	34 min
Aug 27, 1:26 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	18 min
Aug 27, 2:08 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	67 min
Aug 27, 3:55 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix	50 min
Sep 7, 6:16 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	44 min
Sep 7, 6:22 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman, Stanley	38 min
Sep 7, 6:57 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman	48 min
Sep 7, 6:59 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Sully	36 min
Sep 7, 7:27 PM CDT	Severe Thunderstorm Warning	ABR	Hyde, Potter, Sully	36 min
Sep 7, 7:36 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	39 min
Sep 7, 8:03 PM CDT	Severe Thunderstorm Warning	FSD	Brule	42 min
Sep 7, 8:16 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	14 min
Sep 7, 8:57 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Tripp	72 min
Sep 7, 9:33 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	42 min
Sep 7, 9:47 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	43 min
Sep 7, 10:27 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	48 min
Sep 7, 11:46 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Hutchinson	29 min
Sep 9, 3:21 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme	24 min
Sep 9, 3:43 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	47 min
Sep 9, 3:46 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme	44 min
Sep 9, 4:26 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	34 min
Sep 9, 4:54 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Turner, Yankton	32 min
Sep 22, 10:37 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	23 min

By county

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

25 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 2014 2016

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.