Alert archive / South Dakota / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in South Dakota, 2012

535 severe thunderstorm warnings in 2012. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in 2012. Tap one for its archive.

Severe Thunderstorm Warnings: 535
Busiest month: June147 severe thunderstorm warnings
Busiest day: May 5, 201243 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.

379 of 537 severe thunderstorm warnings covering South Dakota in 2012 had a qualifying storm report inside them; 621 of 721 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.

South Dakota, 2012

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	537	379	29%	721	86%	23 min

Each office's whole area, 2012

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Sioux Falls, SD: severe thunderstorm warnings	230	174	24%	342	92%	19 min
NWS Rapid City, SD: severe thunderstorm warnings	259	192	26%	349	86%	23 min
NWS Aberdeen, SD: severe thunderstorm warnings	189	124	34%	274	84%	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
Mar 18, 10:11 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	48 min
Mar 18, 10:42 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Ziebach	51 min
Mar 19, 1:16 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Moody	29 min
Mar 26, 7:06 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Custer, Lawrence, Meade, Pennington	54 min
Mar 26, 8:24 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Ziebach	45 min
Mar 26, 8:37 PM CDT	Severe Thunderstorm Warning	ABR	Corson	38 min
Mar 26, 9:14 PM CDT	Severe Thunderstorm Warning	ABR	Corson	46 min
Mar 29, 8:11 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	38 min
Apr 6, 4:51 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	30 min
Apr 6, 5:37 PM CDT	Severe Thunderstorm Warning	UNR		29 min
Apr 15, 11:22 AM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	23 min
Apr 15, 11:45 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	45 min
Apr 15, 3:19 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Moody	16 min
May 1, 3:35 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	40 min
May 1, 4:02 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas	28 min
May 1, 4:03 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook	27 min
May 1, 5:16 PM CDT	Severe Thunderstorm Warning	FSD	Moody	29 min
May 1, 6:18 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Minnehaha	27 min
May 1, 6:29 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Lincoln, McCook, Minnehaha, Turner	46 min
May 1, 7:12 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	33 min
May 2, 7:28 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day, Grant	47 min
May 2, 8:07 PM CDT	Severe Thunderstorm Warning	ABR	Potter, Sully	53 min
May 2, 8:14 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Grant	46 min
May 2, 9:25 PM CDT	Severe Thunderstorm Warning	ABR	Grant	15 min
May 2, 10:49 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Day, Spink	41 min
May 4, 5:04 AM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	38 min
May 4, 5:32 AM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette, Todd	58 min
May 4, 6:28 AM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	62 min
May 4, 7:16 AM CDT	Severe Thunderstorm Warning	UNR	Tripp	26 min
May 4, 9:42 AM CDT	Severe Thunderstorm Warning	UNR	Mellette, Tripp	93 min
May 4, 1:57 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, McCook, Minnehaha, Turner	33 min
May 4, 3:00 PM CDT	Severe Thunderstorm Warning	FSD	Union	30 min
May 4, 3:21 PM CDT	Severe Thunderstorm Warning	FSD	Douglas, Hanson, Hutchinson	39 min
May 4, 4:36 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, McCook, Turner	18 min
May 5, 2:49 AM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	56 min
May 5, 3:59 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Lawrence, Pennington	61 min
May 5, 4:45 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	60 min
May 5, 4:55 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	51 min
May 5, 5:20 AM CDT	Severe Thunderstorm Warning	UNR	Jackson	55 min
May 5, 5:39 AM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	66 min
May 5, 5:54 AM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	66 min
May 5, 6:02 AM CDT	Severe Thunderstorm Warning	UNR	Tripp	48 min
May 5, 6:10 AM CDT	Severe Thunderstorm Warning	ABR	Jones	50 min
May 5, 6:21 AM CDT	Severe Thunderstorm Warning	ABR	Lyman	39 min
May 5, 6:31 AM CDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	59 min
May 5, 6:37 AM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	23 min
May 5, 6:45 AM CDT	Severe Thunderstorm Warning	UNR	Pennington	60 min
May 5, 6:50 AM CDT	Severe Thunderstorm Warning	ABR	Lyman	25 min
May 5, 6:53 AM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	37 min
May 5, 6:58 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	47 min
May 5, 7:24 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	36 min
May 5, 7:45 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	45 min
May 5, 7:50 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	40 min
May 5, 8:03 AM CDT	Severe Thunderstorm Warning	FSD	Brule	27 min
May 5, 8:16 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison	29 min
May 5, 8:23 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Jerauld	37 min
May 5, 8:24 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	25 min
May 5, 8:40 AM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson	35 min
May 5, 8:52 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Sanborn	23 min
May 5, 8:58 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman, Stanley, Sully	47 min
May 5, 9:03 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	42 min
May 5, 9:08 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, Lake, McCook, Miner	37 min
May 5, 9:11 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Hanson	34 min
May 5, 9:35 AM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Miner, Minnehaha	25 min
May 5, 9:40 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook, Miner	35 min
May 5, 9:53 AM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Minnehaha, Moody	37 min
May 5, 9:55 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman	50 min
May 5, 10:11 AM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	34 min
May 5, 10:25 AM CDT	Severe Thunderstorm Warning	FSD	Moody	35 min
May 5, 10:29 AM CDT	Severe Thunderstorm Warning	ABR	Hand, Spink	31 min
May 5, 10:36 AM CDT	Severe Thunderstorm Warning	FSD	Beadle	24 min
May 5, 10:42 AM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	48 min
May 5, 12:18 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	27 min
May 5, 12:40 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	23 min
May 5, 6:20 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Sanborn	25 min
May 5, 6:40 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	50 min
May 5, 6:51 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle, Davison, Kingsbury, Miner, Sanborn	39 min
May 5, 7:05 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, McCook, Miner	25 min
May 5, 7:29 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Lake, McCook, Miner, Sanborn	46 min
May 5, 7:30 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Miner, Sanborn	45 min
May 5, 7:41 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury	36 min
May 5, 7:48 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Hamlin	57 min
May 5, 7:59 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	61 min
May 5, 7:59 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	46 min
May 5, 8:11 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Lake, McCook, Miner, Minnehaha and 1 more	49 min
May 5, 8:16 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	29 min
May 5, 8:18 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Hamlin	57 min
May 5, 8:36 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Hamlin, Roberts	54 min
May 5, 8:42 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	48 min
May 5, 8:43 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	47 min
May 5, 8:43 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Hamlin	60 min
May 5, 8:46 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix	44 min
May 5, 8:56 PM CDT	Severe Thunderstorm Warning	ABR	Grant, Roberts	41 min
May 5, 8:57 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Hanson, Lake, McCook, Miner, Minnehaha and 1 more	48 min
May 5, 9:05 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	25 min
May 5, 9:13 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Grant, Marshall, Roberts	41 min
May 5, 9:23 PM CDT	Severe Thunderstorm Warning	ABR	Grant, Roberts	41 min
May 5, 9:26 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Miner, Sanborn	23 min
May 5, 9:27 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	28 min
May 5, 9:29 PM CDT	Severe Thunderstorm Warning	ABR	Deuel	16 min
May 5, 9:29 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	46 min
May 5, 9:42 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Minnehaha, Moody	48 min
May 5, 10:02 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Miner, Sanborn	28 min
May 5, 10:07 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	38 min
May 5, 10:28 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Minnehaha, Moody	62 min
May 5, 10:31 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake, Miner	29 min
May 5, 10:57 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake	33 min
May 5, 11:08 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Lake, McCook, Miner	37 min
May 5, 11:25 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake, Moody	65 min
May 5, 11:45 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Miner, Minnehaha	45 min
May 6, 12:22 AM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Minnehaha, Moody	38 min
May 17, 6:39 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	29 min
May 18, 3:46 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	46 min
May 18, 6:34 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	56 min
May 18, 6:59 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	61 min
May 18, 7:40 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	65 min
May 18, 7:59 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette	49 min
May 18, 8:31 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	44 min
May 19, 12:30 AM CDT	Severe Thunderstorm Warning	ABR	Faulk	30 min
May 19, 1:07 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds	23 min
May 21, 7:08 PM CDT	Severe Thunderstorm Warning	UNR	Todd	53 min
May 21, 7:50 PM CDT	Severe Thunderstorm Warning	UNR	Todd	40 min
May 22, 6:34 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, McPherson, Walworth	41 min
May 22, 7:08 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd	44 min
May 22, 7:13 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson	23 min
May 22, 7:16 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson, Walworth	44 min
May 22, 7:23 PM CDT	Severe Thunderstorm Warning	UNR	Mellette	22 min
May 22, 7:24 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	18 min
May 22, 8:00 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	33 min
May 22, 9:46 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	29 min
May 22, 11:19 PM CDT	Severe Thunderstorm Warning	ABR	Hand	26 min
May 24, 4:37 PM CDT	Severe Thunderstorm Warning	ABR	Spink	13 min
May 26, 4:20 AM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	40 min
May 26, 4:35 AM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Davison	40 min
May 26, 5:44 AM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, McCook, Miner, Sanborn	46 min
May 26, 6:40 AM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Moody	35 min
May 26, 8:58 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman, Stanley, Sully	30 min
May 26, 9:59 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hughes, Hyde, Sully	46 min
May 26, 10:39 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	66 min
May 26, 10:43 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Hand, Hyde, Potter, Sully	62 min
May 26, 10:54 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, McPherson	51 min
May 26, 11:20 PM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	25 min
May 26, 11:31 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	44 min
May 26, 11:43 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Marshall	32 min
May 27, 12:28 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey	29 min
May 27, 5:27 PM CDT	Severe Thunderstorm Warning	FSD	Union	33 min
May 27, 5:58 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	32 min
May 27, 6:24 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	36 min
May 27, 6:31 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Yankton	44 min
May 27, 6:35 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha	40 min
May 27, 7:11 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Union	34 min
May 27, 7:31 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	29 min
May 27, 9:18 PM CDT	Severe Thunderstorm Warning	FSD	Union	27 min
May 27, 9:42 PM CDT	Severe Thunderstorm Warning	FSD	Union	10 min
May 28, 8:12 AM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	19 min
Jun 1, 4:51 PM CDT	Severe Thunderstorm Warning	ABR	Brown	39 min
Jun 1, 5:56 PM CDT	Severe Thunderstorm Warning	ABR	Brown	34 min
Jun 1, 6:17 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Marshall	43 min
Jun 1, 6:59 PM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall	46 min
Jun 1, 7:57 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	48 min
Jun 1, 9:47 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	28 min
Jun 2, 9:17 PM CDT	Severe Thunderstorm Warning	UNR	Custer	37 min
Jun 7, 2:51 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	54 min
Jun 7, 3:28 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Pennington	62 min
Jun 7, 4:27 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Pennington	63 min
Jun 7, 4:34 PM CDT	Severe Thunderstorm Warning	UNR		41 min
Jun 7, 4:37 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	53 min
Jun 7, 5:56 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	35 min
Jun 7, 6:03 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	49 min
Jun 7, 6:45 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	45 min
Jun 7, 7:25 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Walworth	36 min
Jun 7, 7:50 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	21 min
Jun 8, 12:02 AM CDT	Severe Thunderstorm Warning	UNR	Mellette	32 min
Jun 9, 9:23 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Lawrence, Meade, Pennington	15 min
Jun 9, 10:02 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington	58 min
Jun 9, 10:14 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	61 min
Jun 9, 10:26 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	64 min
Jun 9, 10:32 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	58 min
Jun 9, 11:08 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	67 min
Jun 9, 11:13 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	62 min
Jun 9, 11:20 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	40 min
Jun 9, 11:22 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley	53 min
Jun 9, 11:35 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	40 min
Jun 9, 11:42 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	48 min
Jun 10, 12:10 AM CDT	Severe Thunderstorm Warning	ABR	Dewey, Hughes, Potter, Stanley, Sully	65 min
Jun 10, 12:29 AM CDT	Severe Thunderstorm Warning	UNR	Haakon	61 min
Jun 10, 12:49 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	26 min
Jun 10, 1:03 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Dewey, Edmunds, Faulk, McPherson, Potter and 2 more	57 min
Jun 10, 1:13 AM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hughes, Hyde, Potter, Sully	62 min
Jun 10, 1:15 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman, Stanley, Sully	30 min
Jun 10, 1:44 AM CDT	Severe Thunderstorm Warning	ABR	Hand, Hughes, Hyde, Sully	31 min
Jun 10, 2:04 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, Faulk, McPherson	56 min
Jun 10, 3:53 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Day, Marshall, Roberts	37 min
Jun 10, 4:15 AM CDT	Severe Thunderstorm Warning	ABR	Marshall	18 min
Jun 12, 5:15 PM CDT	Severe Thunderstorm Warning	UNR		26 min
Jun 12, 5:20 PM CDT	Severe Thunderstorm Warning	UNR	Butte	40 min
Jun 12, 6:08 PM CDT	Severe Thunderstorm Warning	UNR	Custer	30 min
Jun 12, 6:50 PM CDT	Severe Thunderstorm Warning	UNR	Meade	55 min
Jun 12, 7:30 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	28 min
Jun 12, 9:00 PM CDT	Severe Thunderstorm Warning	UNR	Jackson	34 min
Jun 13, 5:50 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	40 min
Jun 13, 5:52 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	19 min
Jun 13, 5:56 PM CDT	Severe Thunderstorm Warning	FSD	Brule	49 min
Jun 13, 6:19 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	41 min
Jun 13, 6:22 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld	23 min
Jun 13, 6:47 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	43 min
Jun 13, 6:48 PM CDT	Severe Thunderstorm Warning	ABR	Hand	20 min
Jun 13, 7:03 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	29 min
Jun 13, 7:13 PM CDT	Severe Thunderstorm Warning	FSD	Brule	47 min
Jun 13, 7:23 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	37 min
Jun 13, 8:16 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix	29 min
Jun 13, 8:30 PM CDT	Severe Thunderstorm Warning	UNR	Harding	34 min
Jun 13, 8:45 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Douglas	45 min
Jun 13, 8:51 PM CDT	Severe Thunderstorm Warning	UNR	Perkins	39 min
Jun 13, 9:13 PM CDT	Severe Thunderstorm Warning	UNR	Perkins	29 min
Jun 13, 9:14 PM CDT	Severe Thunderstorm Warning	UNR	Perkins	46 min
Jun 13, 9:27 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas	48 min
Jun 13, 9:38 PM CDT	Severe Thunderstorm Warning	FSD	Sanborn	22 min
Jun 13, 9:39 PM CDT	Severe Thunderstorm Warning	ABR	Corson	51 min
Jun 13, 10:08 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	29 min
Jun 14, 2:34 AM CDT	Severe Thunderstorm Warning	ABR	Brown	26 min
Jun 14, 2:50 AM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	40 min
Jun 14, 2:59 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Marshall	46 min
Jun 14, 3:00 AM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	30 min
Jun 14, 3:30 AM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	30 min
Jun 15, 3:18 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	57 min
Jun 15, 3:38 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	67 min
Jun 15, 4:36 PM CDT	Severe Thunderstorm Warning	UNR	Meade	54 min
Jun 15, 4:42 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	63 min
Jun 15, 5:09 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	66 min
Jun 15, 5:18 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington, Ziebach	57 min
Jun 15, 5:27 PM CDT	Severe Thunderstorm Warning	UNR	Meade	46 min
Jun 15, 5:30 PM CDT	Severe Thunderstorm Warning	UNR	Meade	60 min
Jun 15, 6:09 PM CDT	Severe Thunderstorm Warning	UNR	Haakon	40 min
Jun 15, 6:17 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	37 min
Jun 15, 7:05 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	23 min
Jun 17, 5:06 PM CDT	Severe Thunderstorm Warning	ABR	Marshall	39 min
Jun 17, 5:12 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	63 min
Jun 17, 5:32 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	58 min
Jun 17, 5:45 PM CDT	Severe Thunderstorm Warning	ABR	Marshall	45 min
Jun 17, 5:50 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	40 min
Jun 17, 5:53 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	47 min
Jun 17, 5:53 PM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall, Roberts	52 min
Jun 17, 6:05 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	40 min
Jun 17, 6:40 PM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall, Roberts	65 min
Jun 17, 7:02 PM CDT	Severe Thunderstorm Warning	ABR	Day, Grant, Roberts	43 min
Jun 17, 7:18 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	27 min
Jun 17, 7:24 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	51 min
Jun 17, 7:25 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Roberts	50 min
Jun 17, 8:05 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Hamlin	40 min
Jun 17, 8:11 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Roberts	58 min
Jun 17, 8:45 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant	30 min
Jun 18, 11:23 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury	37 min
Jun 18, 11:48 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	27 min
Jun 19, 12:11 AM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	49 min
Jun 19, 12:49 AM CDT	Severe Thunderstorm Warning	FSD	Brookings, Moody	41 min
Jun 19, 2:34 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day, Deuel, Grant, Roberts	56 min
Jun 19, 2:43 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson, Marshall	29 min
Jun 19, 2:51 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	39 min
Jun 19, 3:43 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant	27 min
Jun 19, 10:48 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd	31 min
Jun 19, 11:02 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	17 min
Jun 19, 11:42 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	63 min
Jun 20, 12:13 AM CDT	Severe Thunderstorm Warning	UNR	Tripp	26 min
Jun 20, 1:18 AM CDT	Severe Thunderstorm Warning	UNR	Bennett, Todd	57 min
Jun 22, 7:54 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	66 min
Jun 22, 8:15 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Meade, Pennington	60 min
Jun 22, 8:39 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	66 min
Jun 22, 9:09 PM CDT	Severe Thunderstorm Warning	UNR		66 min
Jun 22, 9:45 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	60 min
Jun 22, 10:03 PM CDT	Severe Thunderstorm Warning	UNR	Butte	57 min
Jun 22, 10:52 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Todd	53 min
Jun 22, 10:59 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	61 min
Jun 22, 11:02 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	58 min
Jun 22, 11:55 PM CDT	Severe Thunderstorm Warning	UNR	Harding	30 min
Jun 23, 1:03 AM CDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	38 min
Jun 25, 6:21 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	54 min
Jun 25, 6:53 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Pennington	52 min
Jun 25, 7:17 PM CDT	Severe Thunderstorm Warning	UNR	Butte	58 min
Jun 25, 7:38 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Custer, Jackson, Pennington	67 min
Jun 25, 8:17 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	39 min
Jun 25, 8:30 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Haakon, Jackson, Pennington	60 min
Jun 25, 9:07 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	53 min
Jun 25, 9:13 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	26 min
Jun 25, 9:55 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	18 min
Jun 25, 10:27 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley, Sully	48 min
Jun 25, 11:22 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde, Potter, Sully	20 min
Jun 29, 7:41 AM CDT	Severe Thunderstorm Warning	ABR	Dewey	49 min
Jun 29, 8:13 AM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	34 min
Jun 29, 10:04 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, Faulk, Hand, Hyde, McPherson and 2 more	56 min
Jun 29, 5:37 PM CDT	Severe Thunderstorm Warning	FSD	Moody	23 min
Jun 29, 5:55 PM CDT	Severe Thunderstorm Warning	FSD	Moody	35 min
Jun 30, 2:53 PM CDT	Severe Thunderstorm Warning	UNR	Custer	67 min
Jun 30, 3:57 PM CDT	Severe Thunderstorm Warning	ABR	Corson	48 min
Jun 30, 4:02 PM CDT	Severe Thunderstorm Warning	ABR	Corson	43 min
Jun 30, 4:33 PM CDT	Severe Thunderstorm Warning	ABR	Corson	42 min
Jun 30, 4:46 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	59 min
Jun 30, 4:51 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	28 min
Jun 30, 5:15 PM CDT	Severe Thunderstorm Warning	UNR	Ziebach	60 min
Jun 30, 6:01 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins, Ziebach	59 min
Jun 30, 6:41 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Ziebach	64 min
Jun 30, 6:50 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	55 min
Jun 30, 7:09 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Pennington	66 min
Jun 30, 7:54 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	66 min
Jun 30, 8:07 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	53 min
Jun 30, 8:47 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Pennington	37 min
Jun 30, 8:56 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	26 min
Jun 30, 10:47 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	19 min
Jul 1, 6:48 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	57 min
Jul 1, 6:59 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	61 min
Jul 1, 8:54 PM CDT	Severe Thunderstorm Warning	UNR	Harding	66 min
Jul 1, 10:00 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	60 min
Jul 1, 10:38 PM CDT	Severe Thunderstorm Warning	UNR	Perkins	56 min
Jul 3, 4:09 AM CDT	Severe Thunderstorm Warning	UNR	Harding	66 min
Jul 5, 6:36 PM CDT	Severe Thunderstorm Warning	UNR	Butte	54 min
Jul 5, 6:53 PM CDT	Severe Thunderstorm Warning	UNR	Custer	67 min
Jul 5, 7:23 PM CDT	Severe Thunderstorm Warning	UNR	Butte	40 min
Jul 5, 9:13 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	47 min
Jul 5, 9:38 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	52 min
Jul 5, 9:57 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	35 min
Jul 5, 10:47 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	28 min
Jul 12, 5:42 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	43 min
Jul 12, 5:43 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	47 min
Jul 12, 6:39 PM CDT	Severe Thunderstorm Warning	ABR	Spink	19 min
Jul 12, 7:32 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	43 min
Jul 12, 8:53 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo	27 min
Jul 14, 7:19 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding, Meade, Perkins	56 min
Jul 16, 4:06 PM CDT	Severe Thunderstorm Warning	UNR	Harding	54 min
Jul 16, 4:53 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding	67 min
Jul 16, 5:40 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	65 min
Jul 16, 5:53 PM CDT	Severe Thunderstorm Warning	UNR	Perkins, Ziebach	97 min
Jul 16, 6:04 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding	41 min
Jul 16, 7:24 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	66 min
Jul 16, 7:44 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins, Ziebach	91 min
Jul 16, 8:59 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	61 min
Jul 16, 9:56 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	64 min
Jul 17, 2:09 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence	66 min
Jul 17, 3:14 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	61 min
Jul 17, 4:19 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	56 min
Jul 17, 5:11 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	53 min
Jul 17, 6:52 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	53 min
Jul 17, 7:42 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	63 min
Jul 17, 7:50 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding	85 min
Jul 17, 8:16 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	59 min
Jul 17, 8:34 PM CDT	Severe Thunderstorm Warning	UNR	Custer	56 min
Jul 17, 8:44 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Harding, Perkins	91 min
Jul 17, 9:30 PM CDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	69 min
Jul 17, 10:18 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	42 min
Jul 17, 10:49 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	41 min
Jul 17, 11:21 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman	39 min
Jul 17, 11:51 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	54 min
Jul 18, 1:56 AM CDT	Severe Thunderstorm Warning	ABR	Spink	49 min
Jul 19, 5:50 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	40 min
Jul 19, 6:18 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	24 min
Jul 19, 6:20 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	55 min
Jul 19, 6:58 PM CDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	92 min
Jul 19, 7:34 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	41 min
Jul 19, 7:40 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Lyman	28 min
Jul 19, 7:50 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	40 min
Jul 19, 8:07 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	23 min
Jul 20, 4:32 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	58 min
Jul 20, 5:29 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd	61 min
Jul 20, 6:20 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	55 min
Jul 20, 6:39 PM CDT	Severe Thunderstorm Warning	UNR	Custer	51 min
Jul 20, 7:40 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Lyman	35 min
Jul 20, 8:09 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman	36 min
Jul 20, 8:42 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo	33 min
Jul 20, 9:32 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld	28 min
Jul 20, 10:56 PM CDT	Severe Thunderstorm Warning	UNR	Haakon	64 min
Jul 20, 11:26 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	49 min
Jul 21, 12:07 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	38 min
Jul 21, 3:03 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	42 min
Jul 21, 4:32 PM CDT	Severe Thunderstorm Warning	UNR	Meade	31 min
Jul 21, 5:26 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	64 min
Jul 21, 6:23 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence	67 min
Jul 21, 6:29 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	10 min
Jul 21, 6:40 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	65 min
Jul 21, 6:55 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	18 min
Jul 21, 6:59 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	40 min
Jul 21, 7:03 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	40 min
Jul 21, 7:16 PM CDT	Severe Thunderstorm Warning	UNR	Custer	39 min
Jul 21, 7:21 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	24 min
Jul 21, 7:52 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	37 min
Jul 21, 8:27 PM CDT	Severe Thunderstorm Warning	UNR	Custer	55 min
Jul 21, 9:07 PM CDT	Severe Thunderstorm Warning	UNR		68 min
Jul 21, 9:46 PM CDT	Severe Thunderstorm Warning	UNR	Custer	17 min
Jul 21, 10:14 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	61 min
Jul 21, 11:02 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Mellette, Todd	58 min
Jul 22, 3:35 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	40 min
Jul 22, 4:21 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson	39 min
Jul 22, 4:28 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	32 min
Jul 22, 4:55 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	50 min
Jul 22, 6:25 PM CDT	Severe Thunderstorm Warning	ABR	Corson	50 min
Jul 22, 7:39 PM CDT	Severe Thunderstorm Warning	ABR	Corson	38 min
Jul 22, 8:17 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Todd	47 min
Jul 22, 9:55 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Tripp	38 min
Jul 23, 5:30 PM CDT	Severe Thunderstorm Warning	UNR	Meade	60 min
Jul 23, 5:53 PM CDT	Severe Thunderstorm Warning	UNR	Butte	40 min
Jul 23, 6:12 PM CDT	Severe Thunderstorm Warning	UNR	Meade	63 min
Jul 23, 6:28 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade, Perkins	62 min
Jul 23, 6:54 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	46 min
Jul 23, 7:22 PM CDT	Severe Thunderstorm Warning	UNR	Meade	38 min
Jul 23, 7:48 PM CDT	Severe Thunderstorm Warning	UNR	Meade	57 min
Jul 23, 8:40 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Ziebach	29 min
Jul 23, 10:01 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	59 min
Jul 23, 10:47 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	58 min
Jul 24, 3:32 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	29 min
Jul 24, 5:02 PM CDT	Severe Thunderstorm Warning	UNR	Butte	58 min
Jul 24, 5:53 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	31 min
Jul 24, 6:03 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	51 min
Jul 24, 8:17 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	58 min
Jul 24, 9:05 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Ziebach	39 min
Jul 24, 9:19 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	41 min
Jul 24, 9:42 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	63 min
Jul 24, 9:51 PM CDT	Severe Thunderstorm Warning	UNR	Harding	54 min
Jul 24, 10:11 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	64 min
Jul 24, 10:27 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	25 min
Jul 24, 11:33 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	57 min
Jul 24, 11:40 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	65 min
Jul 25, 12:02 AM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins, Ziebach	58 min
Jul 25, 12:39 AM CDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	96 min
Jul 25, 12:56 AM CDT	Severe Thunderstorm Warning	UNR	Meade, Perkins, Ziebach	64 min
Jul 25, 1:33 AM CDT	Severe Thunderstorm Warning	ABR	Dewey	42 min
Jul 25, 3:41 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	49 min
Jul 25, 4:05 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	40 min
Jul 25, 4:44 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	14 min
Jul 25, 5:04 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Day, Spink	41 min
Jul 25, 5:37 PM CDT	Severe Thunderstorm Warning	ABR	Spink	13 min
Jul 27, 4:42 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade	46 min
Jul 27, 5:04 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	39 min
Jul 27, 5:46 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	59 min
Jul 27, 6:29 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	61 min
Jul 27, 6:59 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Haakon, Jackson, Meade, Pennington	61 min
Jul 27, 7:55 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette, Pennington	72 min
Jul 27, 11:12 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd	50 min
Jul 29, 4:58 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Walworth	31 min
Jul 29, 5:27 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Dewey, Edmunds, McPherson, Potter, Walworth	24 min
Jul 29, 6:58 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds	34 min
Jul 29, 8:37 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	38 min
Aug 1, 2:27 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Pennington	63 min
Aug 1, 2:50 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	73 min
Aug 1, 3:08 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	52 min
Aug 1, 3:29 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde, Jones, Lyman, Stanley	61 min
Aug 1, 3:34 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	18 min
Aug 1, 3:37 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	43 min
Aug 1, 3:59 PM CDT	Severe Thunderstorm Warning	ABR	Jones	21 min
Aug 1, 4:45 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Lyman, Stanley	20 min
Aug 1, 4:53 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Hamlin	41 min
Aug 1, 7:25 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas, Gregory	35 min
Aug 2, 6:04 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence	56 min
Aug 2, 6:53 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	52 min
Aug 2, 7:08 PM CDT	Severe Thunderstorm Warning	UNR	Butte, Meade, Perkins, Ziebach	67 min
Aug 2, 7:41 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Meade, Ziebach	39 min
Aug 2, 7:44 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	76 min
Aug 2, 8:20 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	55 min
Aug 2, 9:12 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Haakon, Jackson, Meade, Pennington	63 min
Aug 2, 10:15 PM CDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette	39 min
Aug 2, 11:41 PM CDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson, Mellette, Todd	64 min
Aug 3, 12:23 AM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd, Tripp	97 min
Aug 3, 2:01 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Walworth	44 min
Aug 3, 2:41 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Walworth	64 min
Aug 3, 3:05 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Walworth	55 min
Aug 3, 3:40 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	65 min
Aug 3, 3:56 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, McPherson, Walworth	64 min
Aug 3, 4:35 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk	25 min
Aug 3, 4:44 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	61 min
Aug 3, 4:54 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	51 min
Aug 3, 5:17 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde, Spink	58 min
Aug 3, 5:34 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Day, McPherson, Marshall, Spink	56 min
Aug 3, 5:53 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Day, Hand, Spink	67 min
Aug 3, 6:00 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	45 min
Aug 3, 6:32 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Sanborn	43 min
Aug 3, 6:35 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Codington, Day, Hamlin, Spink	25 min
Aug 3, 6:50 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Douglas	40 min
Aug 3, 6:53 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day, Deuel, Grant, Hamlin	67 min
Aug 3, 7:10 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle, Davison, Jerauld, Kingsbury, Sanborn	50 min
Aug 3, 7:23 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Kingsbury, Lake, Miner, Sanborn	52 min
Aug 3, 7:46 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Davison, Hanson, Kingsbury, Lake, McCook and 2 more	44 min
Aug 3, 7:59 PM CDT	Severe Thunderstorm Warning	ABR	Deuel, Hamlin	31 min
Aug 3, 8:03 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	27 min
Aug 3, 8:23 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha, Moody	52 min
Aug 7, 2:13 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	44 min
Aug 7, 4:09 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	43 min
Aug 7, 4:31 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	21 min
Aug 8, 3:21 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury	24 min
Aug 8, 3:44 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury	46 min
Aug 10, 2:54 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence	51 min
Aug 10, 3:30 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	60 min
Aug 10, 4:08 PM CDT	Severe Thunderstorm Warning	UNR	Pennington	67 min
Aug 10, 5:06 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	69 min
Aug 10, 5:54 PM CDT	Severe Thunderstorm Warning	UNR	Custer	66 min
Aug 10, 7:01 PM CDT	Severe Thunderstorm Warning	UNR		40 min
Aug 10, 8:29 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	61 min
Aug 10, 8:33 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	57 min
Aug 11, 7:28 PM CDT	Severe Thunderstorm Warning	UNR		47 min
Aug 11, 8:06 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	54 min
Aug 13, 7:52 PM CDT	Severe Thunderstorm Warning	UNR	Harding	53 min
Aug 22, 6:07 PM CDT	Severe Thunderstorm Warning	UNR	Todd	37 min
Aug 22, 9:25 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hyde, Potter, Sully	50 min
Aug 22, 9:55 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde	50 min
Aug 24, 6:20 PM CDT	Severe Thunderstorm Warning	ABR	Corson	40 min
Aug 24, 6:57 PM CDT	Severe Thunderstorm Warning	ABR	Corson	31 min
Aug 24, 6:58 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	24 min
Aug 24, 7:00 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	29 min
Aug 24, 7:49 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	18 min
Aug 24, 7:50 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Walworth	40 min
Aug 26, 5:23 PM CDT	Severe Thunderstorm Warning	UNR	Bennett	30 min
Aug 28, 3:37 AM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	36 min
Aug 28, 4:48 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day	33 min
Aug 28, 5:32 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington	24 min
Sep 1, 6:38 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Meade, Pennington	67 min
Sep 1, 7:11 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	49 min
Sep 3, 4:18 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde, Sully	42 min
Sep 3, 4:59 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde	46 min
Sep 3, 5:03 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds	42 min
Sep 3, 5:24 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde	51 min
Sep 3, 6:09 PM CDT	Severe Thunderstorm Warning	ABR	Hand	37 min
Sep 3, 6:27 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld, Sanborn	28 min
Sep 3, 7:14 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld, Sanborn	46 min
Sep 3, 7:59 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Jerauld, Sanborn	46 min
Sep 4, 5:53 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde, Lyman, Stanley	35 min
Sep 4, 6:33 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Davison, Jerauld	42 min
Sep 4, 6:43 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hyde	47 min
Sep 4, 6:45 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas, Hutchinson	45 min
Sep 4, 7:06 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo	24 min
Sep 4, 7:13 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Hanson, Sanborn	47 min
Sep 4, 7:28 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo	16 min
Sep 4, 7:37 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Jerauld	38 min
Sep 4, 7:49 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Lake, McCook, Miner	41 min
Sep 4, 7:59 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson	31 min
Sep 4, 8:14 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Turner, Union	46 min
Sep 4, 8:27 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook, Miner	33 min
Sep 4, 8:52 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Lincoln, McCook, Minnehaha, Moody, Turner	38 min
Sep 4, 8:57 PM CDT	Severe Thunderstorm Warning	FSD	Union	48 min
Sep 4, 9:28 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha, Moody	47 min

By county

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

24 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

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

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.