Weather alerts in South Dakota, May 2026

154 weather alerts in May 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in May 2026. Tap one for its archive.

Alerts: 154
Warnings: 70
Watches: 8
Advisories: 17
Busiest day: May 31, 202627 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
May 1, 1:06 PM CDT	Freeze Warning	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	19 hr
May 3, 12:32 PM CDT	Wind Advisory	UNR	Butte, Harding, Meade, Perkins	30 hr
May 3, 3:12 PM CDT	Special Weather Statement	UNR	Lawrence	33 min
May 3, 3:31 PM CDT	Special Weather Statement	UNR	Pennington	29 min
May 3, 4:00 PM CDT	Special Weather Statement	UNR	Custer	30 min
May 3, 4:30 PM CDT	Special Weather Statement	UNR	Fall River	45 min
May 3, 4:31 PM CDT	Special Weather Statement	UNR	Custer	29 min
May 3, 4:48 PM CDT	Special Weather Statement	UNR	Custer	27 min
May 3, 5:27 PM CDT	Special Weather Statement	UNR	Fall River	33 min
May 3, 5:29 PM CDT	Special Weather Statement	UNR	Fall River	31 min
May 3, 5:53 PM CDT	Special Weather Statement	UNR	Oglala Lakota	37 min
May 5, 1:19 PM CDT	Frost Advisory	FSD	Bon Homme, Charles Mix, Clay, Douglas, Gregory, Hutchinson and 4 more	18 hr
May 5, 1:19 PM CDT	Freeze Warning	FSD	Aurora, Beadle, Brookings, Brule, Davison, Hanson and 8 more	18 hr
May 6, 1:15 PM CDT	Frost Advisory	FSD	Aurora, Beadle, Brookings, Brule, Davison, Hanson and 6 more	19 hr
May 8, 7:59 AM CDT	Red Flag Warning	ABR	Brown, Clark, Codington, Day, Deuel, Grant and 4 more	12 hr
May 8, 1:49 PM CDT	Frost Advisory	UNR	Custer, Lawrence, Meade, Pennington	65 min
May 9, 12:29 AM CDT	Frost Advisory	ABR	Brown, Campbell, Clark, Codington, Corson, Day and 16 more	33 hr
May 9, 11:53 AM CDT	Frost Advisory	UNR	Harding, Perkins, Ziebach	20 hr
May 9, 1:36 PM CDT	Frost Advisory	FSD	Beadle, Brookings, Hanson, Kingsbury, Lake, McCook and 4 more	19 hr
May 10, 1:21 AM CDT	Fire Weather Watch	ABR	Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more	24 hr
May 10, 2:57 AM CDT	Fire Weather Watch	UNR	Bennett, Butte, Custer, Fall River, Haakon, Jackson and 9 more	20 hr
May 10, 3:12 AM CDT	Frost Advisory	ABR	Brown, Clark, Codington, Day, Deuel, Edmunds and 7 more	29 hr
May 10, 12:56 PM CDT	Red Flag Warning	ABR	Hughes, Jones, Lyman, Stanley	32 hr
May 10, 1:08 PM CDT	Frost Advisory	FSD	Beadle, Brookings, Kingsbury, Lake, Lincoln, McCook and 4 more	19 hr
May 10, 1:08 PM CDT	Red Flag Warning	UNR	Bennett, Butte, Custer, Fall River, Haakon, Jackson and 9 more	32 hr
May 11, 11:29 AM CDT	Wind Advisory	ABR	Brown, McPherson, Marshall, Roberts	32 hr
May 11, 2:37 PM CDT	Red Flag Warning	ABR	Brown, Buffalo, Campbell, Clark, Codington, Day and 16 more	30 hr
May 11, 3:07 PM CDT	Red Flag Warning	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	30 hr
May 12, 1:27 PM CDT	Red Flag Warning	ABR	Corson, Dewey, Jones, Stanley	33 hr
May 12, 2:19 PM CDT	Red Flag Warning	UNR	Bennett, Butte, Custer, Fall River, Haakon, Jackson and 5 more	56 hr
May 13, 1:02 AM CDT	Fire Weather Watch	ABR	Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more	24 hr
May 13, 11:47 AM CDT	Wind Advisory	UNR	Butte, Harding, Meade, Perkins	31 hr
May 13, 1:54 PM CDT	Fire Weather Watch	FSD	Beadle, Brookings, Jerauld, Kingsbury, Lake, Miner and 2 more	24 hr
May 13, 1:54 PM CDT	Red Flag Warning	FSD	Bon Homme, Brookings, Clay, Hanson, Hutchinson, Kingsbury and 9 more	30 hr
May 13, 2:27 PM CDT	Red Flag Warning	ABR	Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more	32 hr
May 13, 10:12 PM CDT	Special Weather Statement	UNR	Custer, Fall River	48 min
May 13, 11:49 PM CDT	Special Weather Statement	UNR	Oglala Lakota	41 min
May 14, 12:58 AM CDT	Special Weather Statement	UNR	Bennett	32 min
May 14, 1:28 AM CDT	Special Weather Statement	UNR	Bennett	32 min
May 14, 5:05 AM CDT	Special Weather Statement	UNR	Tripp	25 min
May 14, 1:57 PM CDT	Red Flag Warning	FSD	Beadle, Brookings, Kingsbury	28 hr
May 14, 10:33 PM CDT	Red Flag Warning	ABR	Brown, Campbell, Clark, Codington, Corson, Day and 17 more	22 hr
May 15, 3:55 PM CDT	Mesoscale Discussion	SPC	Union	2 hr
May 15, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Union	8 hr
May 15, 7:29 PM CDT	Mesoscale Discussion	SPC	Clay, Union	2 hr
May 16, 12:04 AM CDT	Red Flag Warning	ABR	Buffalo, Hughes, Hyde, Jones, Lyman, Stanley and 1 more	22 hr
May 17, 1:10 AM CDT	Flash Flood Warning	FSD	Union	4 hr
May 17, 11:58 AM CDT	Mesoscale Discussion	SPC	Charles Mix, Gregory, Tripp	92 min
May 17, 1:02 PM CDT	Special Weather Statement	UNR	Tripp	28 min
May 17, 1:09 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	51 min
May 17, 1:11 PM CDT	Mesoscale Discussion	SPC	Aurora, Bon Homme, Charles Mix, Clay, Davison, Douglas and 12 more	2 hr
May 17, 1:42 PM CDT	Tornado Watch	SPC	Aurora, Bon Homme, Charles Mix, Clay, Davison, Douglas and 13 more	8 hr
May 17, 2:10 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	50 min
May 17, 2:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Aurora, Brule, Charles Mix, Douglas	45 min
May 17, 2:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Bon Homme, Hutchinson, Yankton	41 min
May 17, 2:50 PM CDT	Tornado Warning	FSD	Bon Homme, Charles Mix, Hutchinson	40 min
May 17, 3:23 PM CDT	Tornado Warning	FSD	Hutchinson, Turner, Yankton	52 min
May 17, 3:28 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FSD	Bon Homme, Clay, Hutchinson, Turner, Yankton	47 min
May 17, 3:31 PM CDT	Mesoscale Discussion	SPC	Bon Homme, Clay, Hanson, Hutchinson, Lincoln, McCook and 4 more	89 min
May 17, 3:35 PM CDT	Tornado Warning	FSD	Hutchinson, Turner	28 min
May 17, 3:59 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FSD	Lincoln, Turner	46 min
May 17, 4:18 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lincoln, Minnehaha, Turner	42 min
May 17, 4:27 PM CDT	Tornado Warning	FSD	Lincoln, Minnehaha	48 min
May 17, 4:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Minnehaha	49 min
May 17, 7:32 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Union	58 min
May 18, 12:40 PM CDT	Freeze Warning	UNR	Bennett, Butte, Custer, Fall River, Haakon, Harding and 7 more	21 hr
May 18, 12:49 PM CDT	Frost Advisory	UNR	Mellette, Todd	21 hr
May 18, 1:26 PM CDT	Frost Advisory	ABR	Campbell, Corson, Dewey, Edmunds, Hughes, Jones and 5 more	18 hr
May 18, 5:10 PM CDT	Mesoscale Discussion	SPC	Union	95 min
May 18, 6:08 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Union	37 min
May 19, 12:50 AM CDT	Freeze Warning	ABR	Brown, Buffalo, Campbell, Clark, Codington, Day and 15 more	31 hr
May 19, 2:43 AM CDT	Frost Advisory	FSD	Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 13 more	29 hr
May 19, 2:43 AM CDT	Freeze Warning	FSD	Beadle, Brookings, Jerauld, Kingsbury, Sanborn	29 hr
May 19, 12:46 PM CDT	Frost Advisory	UNR	Bennett, Butte, Custer, Fall River, Haakon, Jackson and 8 more	19 hr
May 19, 12:55 PM CDT	Frost Advisory	ABR	Corson, Dewey, Jones, Lyman, Stanley	19 hr
May 21, 1:37 PM CDT	Special Weather Statement	UNR	Lawrence	23 min
May 21, 2:50 PM CDT	Special Weather Statement	UNR	Custer	25 min
May 21, 2:52 PM CDT	Special Weather Statement	UNR	Oglala Lakota	38 min
May 21, 3:25 PM CDT	Special Weather Statement	UNR	Oglala Lakota	35 min
May 21, 3:36 PM CDT	Special Weather Statement	UNR	Jackson	24 min
May 21, 4:02 PM CDT	Special Weather Statement	UNR	Haakon	28 min
May 21, 4:53 PM CDT	Special Weather Statement	UNR	Pennington	37 min
May 21, 5:28 PM CDT	Special Weather Statement	UNR	Meade	32 min
May 21, 5:50 PM CDT	Special Weather Statement	UNR	Harding	25 min
May 22, 12:57 AM CDT	Wind Advisory	UNR	Custer, Meade, Oglala Lakota, Pennington	14 hr
May 24, 3:34 PM CDT	Mesoscale Discussion	SPC	Aurora, Bon Homme, Brookings, Charles Mix, Clay, Davison and 16 more	86 min
May 24, 4:39 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Douglas, Hutchinson	51 min
May 24, 4:53 PM CDT	Severe Thunderstorm Watch	SPC	Bon Homme, Brookings, Charles Mix, Clay, Douglas, Gregory and 11 more	6 hr
May 24, 5:21 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson	39 min
May 24, 5:57 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson	48 min
May 24, 6:28 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha, Turner	47 min
May 24, 6:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Bon Homme, Hutchinson, Yankton	39 min
May 24, 6:49 PM CDT	Mesoscale Discussion	SPC	Bon Homme, Brookings, Charles Mix, Clay, Douglas, Hanson and 10 more	116 min
May 24, 7:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Bon Homme, Yankton	47 min
May 24, 7:39 PM CDT	Severe Thunderstorm Warning	FSD	Moody	51 min
May 24, 7:57 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	48 min
May 24, 8:01 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Turner	44 min
May 24, 8:37 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Turner, Yankton	38 min
May 24, 8:41 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Turner	49 min
May 24, 8:48 PM CDT	Mesoscale Discussion	SPC	Bon Homme, Clay, Hanson, Hutchinson, Lake, Lincoln and 6 more	87 min
May 24, 9:12 PM CDT	Special Weather Statement	ABR	Campbell	33 min
May 24, 9:24 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha, Turner	51 min
May 24, 10:04 PM CDT	Severe Thunderstorm Warning	FSD	McCook	41 min
May 24, 10:10 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha, Turner	50 min
May 24, 10:36 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	39 min
May 24, 10:42 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	48 min
May 24, 11:29 PM CDT	Flash Flood Warning	FSD	Minnehaha	72 min
May 24, 11:29 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha	46 min
May 25, 7:13 PM CDT	Mesoscale Discussion	SPC	Clay, Lincoln, Union	92 min
May 26, 9:30 PM CDT	Special Weather Statement	ABR	Day	15 min
May 26, 9:51 PM CDT	Special Weather Statement	ABR	Day	24 min
May 29, 3:28 PM CDT	Special Weather Statement	UNR	Lawrence	32 min
May 30, 2:14 PM CDT	Mesoscale Discussion	SPC	Custer, Fall River, Lawrence, Meade, Oglala Lakota, Pennington	2 hr
May 30, 2:57 PM CDT	Special Weather Statement	CYS	Fall River	33 min
May 30, 3:07 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	23 min
May 30, 3:13 PM CDT	Severe Thunderstorm Watch	SPC	Custer, Fall River, Meade, Oglala Lakota, Pennington	7 hr
May 30, 3:21 PM CDT	Mesoscale Discussion	SPC	Butte, Harding	2 hr
May 30, 3:33 PM CDT	Special Weather Statement	UNR	Custer	27 min
May 30, 3:40 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	18 min
May 30, 3:54 PM CDT	Special Weather Statement	UNR	Lawrence	36 min
May 30, 4:05 PM CDT	Special Weather Statement	UNR	Harding	25 min
May 30, 4:30 PM CDT	Special Weather Statement	UNR	Custer	30 min
May 30, 5:23 PM CDT	Special Weather Statement	UNR	Butte	37 min
May 30, 5:25 PM CDT	Special Weather Statement	UNR	Fall River	35 min
May 30, 5:38 PM CDT	Severe Thunderstorm Warning	UNR	Fall River, Oglala Lakota	37 min
May 30, 6:13 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Fall River, Oglala Lakota	47 min
May 30, 6:20 PM CDT	Mesoscale Discussion	SPC	Butte, Custer, Fall River, Harding, Lawrence, Pennington	85 min
May 30, 7:11 PM CDT	Special Weather Statement	UNR	Oglala Lakota	34 min
May 30, 8:48 PM CDT	Mesoscale Discussion	SPC	Custer, Fall River, Meade, Oglala Lakota, Pennington	87 min
May 30, 9:10 PM CDT	Mesoscale Discussion	SPC	Todd	95 min
May 30, 11:19 PM CDT	Severe Thunderstorm Warning	UNR	Haakon	41 min
May 30, 11:41 PM CDT	Special Weather Statement	ABR	Stanley	49 min
May 30, 11:56 PM CDT	Special Weather Statement	UNR	Ziebach	34 min
May 31, 12:06 AM CDT	Special Weather Statement	ABR	Lyman	39 min
May 31, 12:48 AM CDT	Special Weather Statement	ABR	Buffalo, Hand, Hyde	42 min
May 31, 1:25 AM CDT	Special Weather Statement	ABR	Faulk, Hand	50 min
May 31, 1:48 PM CDT	Special Weather Statement	UNR	Custer	27 min
May 31, 1:58 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	32 min
May 31, 2:28 PM CDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	16 min
May 31, 3:20 PM CDT	Mesoscale Discussion	SPC	Aurora, Beadle, Bon Homme, Brown, Brule, Buffalo and 29 more	2 hr
May 31, 4:12 PM CDT	Special Weather Statement	ABR	Edmunds	33 min
May 31, 4:25 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds	16 min
May 31, 4:51 PM CDT	Severe Thunderstorm Warning	FSD	Miner	24 min
May 31, 5:15 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	29 min
May 31, 5:15 PM CDT	Severe Thunderstorm Warning	FSD	Miner	11 min
May 31, 5:29 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	31 min
May 31, 5:33 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	57 min
May 31, 5:51 PM CDT	Flash Flood Warning	FSD	Hanson, Hutchinson, McCook	3 hr
May 31, 5:57 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Lake, McCook, Miner	48 min
May 31, 6:07 PM CDT	Tornado Warning	FSD	McCook	38 min
May 31, 6:08 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	52 min
May 31, 6:30 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	45 min
May 31, 6:34 PM CDT	Severe Thunderstorm Warning	FSD	McCook	41 min
May 31, 6:43 PM CDT	Areal Flood Warning	ABR	McPherson	3 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	44
Tornado Warning	5
Severe Thunderstorm Watch	3
Tornado Watch	1
Mesoscale Discussion	16
Special Weather Statement	43
Flooding
Areal Flood Warning	1
Flash Flood Warning	3
Cold
Freeze Warning	5
Frost Advisory	13
Wind and dust
Wind Advisory	4
Fire
Red Flag Warning	12
Fire Weather Watch	4

By county

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

26 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

Sources

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