Alert archive / South Dakota / Sully County

Weather alerts in Sully County, South Dakota, 2022

156 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sully County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts: 156
Warnings: 51
Watches: 25
Advisories: 49
Busiest month: June30 alerts
Busiest day: July 5, 20228 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Sully County in 2022 had a tornado report inside them.

Sully County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	22	20	9%	4	100%	18 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Aberdeen, SD: tornado warnings	33	14	58%	28	68%	11 min
NWS Aberdeen, SD: severe thunderstorm warnings	260	172	34%	409	81%	23 min
NWS Aberdeen, SD: flash flood warnings	9	2	78%	4	50%	18 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	Lasted
Jan 4, 2:27 AM CST	High Wind Warning	ABR	19 hr
Jan 4, 3:15 AM CST	Wind Chill Warning	ABR	33 hr
Jan 4, 3:15 AM CST	Wind Chill Advisory	ABR	3 days
Jan 5, 2:44 AM CST	Wind Chill Warning	ABR	57 hr
Jan 5, 2:44 AM CST	Wind Chill Advisory	ABR	33 hr
Jan 13, 2:26 AM CST	Winter Weather Advisory	ABR	40 hr
Jan 13, 2:42 PM CST	Wind Advisory	ABR	27 hr
Jan 17, 2:07 PM CST	Wind Advisory	ABR	34 hr
Jan 21, 5:12 AM CST	Winter Weather Advisory	ABR	10 hr
Jan 21, 2:02 PM CST	Wind Advisory	ABR	6 hr
Jan 31, 2:48 AM CST	Wind Advisory	ABR	33 hr
Feb 7, 1:55 PM CST	Wind Advisory	ABR	28 hr
Feb 10, 2:58 AM CST	Wind Advisory	ABR	16 hr
Feb 11, 12:46 AM CST	Wind Advisory	ABR	14 hr
Feb 17, 2:09 PM CST	Wind Advisory	ABR	30 hr
Feb 20, 2:41 PM CST	Wind Chill Advisory	ABR	27 hr
Feb 20, 2:41 PM CST	Winter Weather Advisory	ABR	54 hr
Feb 22, 9:31 AM CST	Wind Chill Warning	ABR	26 hr
Feb 24, 2:31 PM CST	Wind Chill Advisory	ABR	20 hr
Mar 4, 2:45 AM CST	Winter Weather Advisory	ABR	45 hr
Mar 11, 2:43 PM CST	Wind Advisory	ABR	27 hr
Mar 19, 3:15 PM CDT	Red Flag Warning	ABR	30 hr
Mar 21, 3:14 AM CDT	Wind Advisory	ABR	16 hr
Mar 23, 2:34 PM CDT	Wind Advisory	ABR	36 hr
Mar 24, 3:03 AM CDT	Fire Weather Watch	ABR	11 hr
Mar 24, 2:21 PM CDT	Red Flag Warning	ABR	31 hr
Mar 27, 9:34 AM CDT	Red Flag Warning	ABR	9 hr
Apr 4, 2:59 PM CDT	High Wind Watch	ABR	29 hr
Apr 4, 3:02 PM CDT	Red Flag Warning	ABR	24 hr
Apr 5, 3:13 AM CDT	Wind Advisory	ABR	28 hr
Apr 5, 2:52 PM CDT	High Wind Warning	ABR	52 hr
Apr 7, 6:51 PM CDT	Wind Advisory	ABR	3 hr
Apr 11, 3:01 PM CDT	High Wind Watch	ABR	12 hr
Apr 12, 3:12 AM CDT	High Wind Warning	ABR	64 hr
Apr 16, 2:17 PM CDT	Wind Advisory	ABR	30 hr
Apr 19, 2:52 AM CDT	Wind Advisory	ABR	15 hr
Apr 22, 2:50 PM CDT	Wind Advisory	ABR	52 hr
Apr 22, 5:34 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 22, 7:37 PM CDT	Mesoscale Discussion	SPC	83 min
Apr 29, 3:27 AM CDT	Wind Advisory	ABR	42 hr
May 7, 3:55 PM CDT	Mesoscale Discussion	SPC	95 min
May 7, 5:22 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 7, 5:49 PM CDT	Severe Thunderstorm Warning	ABR	26 min
May 7, 7:13 PM CDT	Severe Thunderstorm Warning	ABR	47 min
May 8, 3:08 PM CDT	Wind Advisory	ABR	29 hr
May 8, 10:45 PM CDT	Mesoscale Discussion	SPC	90 min
May 12, 1:40 AM CDT	Special Weather Statement	ABR	20 min
May 12, 2:00 AM CDT	Mesoscale Discussion	SPC	3 hr
May 12, 2:47 PM CDT	Mesoscale Discussion	SPC	2 hr
May 12, 3:50 PM CDT	Tornado Watch	SPC	5 hr
May 12, 5:30 PM CDT	Special Weather Statement	ABR	30 min
May 13, 3:10 AM CDT	Wind Advisory	ABR	16 hr
May 20, 12:01 PM CDT	Frost Advisory	ABR	21 hr
May 20, 12:01 PM CDT	Freeze Warning	ABR	21 hr
May 21, 2:17 PM CDT	Freeze Warning	ABR	19 hr
May 27, 5:19 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 27, 9:04 PM CDT	Mesoscale Discussion	SPC	56 min
May 28, 7:51 PM CDT	Mesoscale Discussion	SPC	54 min
May 30, 3:26 PM CDT	Wind Advisory	ABR	22 hr
Jun 12, 8:07 PM CDT	Mesoscale Discussion	SPC	83 min
Jun 12, 8:41 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 11:50 PM CDT	Severe Thunderstorm Warning	ABR	40 min
Jun 13, 11:06 PM CDT	Mesoscale Discussion	SPC	54 min
Jun 13, 11:23 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 14, 1:52 AM CDT	Mesoscale Discussion	SPC	83 min
Jun 14, 1:59 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	46 min
Jun 14, 2:43 AM CDT	Severe Thunderstorm Warning	ABR	47 min
Jun 14, 3:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	54 min
Jun 17, 2:27 PM CDT	Heat Advisory	ABR	3 days
Jun 18, 9:39 AM CDT	Wind Advisory	ABR	11 hr
Jun 19, 5:31 PM CDT	Mesoscale Discussion	SPC	89 min
Jun 20, 12:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 20, 3:36 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 20, 5:14 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 20, 7:03 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	42 min
Jun 20, 7:33 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	42 min
Jun 20, 8:07 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	38 min
Jun 23, 7:15 PM CDT	Mesoscale Discussion	SPC	3 hr
Jun 24, 2:45 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 24, 3:20 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 24, 6:04 PM CDT	Severe Thunderstorm Warning	ABR	41 min
Jun 24, 6:17 PM CDT	Severe Thunderstorm Warning	ABR	58 min
Jun 24, 6:37 PM CDT	Severe Thunderstorm Warning	ABR	53 min
Jun 24, 7:16 PM CDT	Severe Thunderstorm Warning	ABR	44 min
Jun 24, 8:01 PM CDT	Severe Thunderstorm Warning	ABR	59 min
Jun 24, 8:47 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 29, 3:01 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 29, 5:25 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 29, 7:54 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 8:53 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 2, 10:40 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 3, 1:04 AM CDT	Severe Thunderstorm Warning	ABR	41 min
Jul 3, 1:26 AM CDT	Mesoscale Discussion	SPC	94 min
Jul 3, 6:30 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 3, 3:48 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 3, 10:48 PM CDT	Mesoscale Discussion	SPC	57 min
Jul 5, 9:14 AM CDT	Mesoscale Discussion	SPC	91 min
Jul 5, 9:37 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 5, 10:42 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	63 min
Jul 5, 11:12 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	48 min
Jul 5, 11:26 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	64 min
Jul 5, 11:47 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	43 min
Jul 5, 11:57 AM CDT	Tornado Warning	ABR	33 min
Jul 5, 1:57 PM CDT	Wind Advisory	ABR	2 hr
Jul 8, 3:00 PM CDT	Heat Advisory	ABR	30 hr
Jul 14, 3:23 AM CDT	Heat Advisory	ABR	17 hr
Jul 17, 8:29 AM CDT	Dense Fog Advisory	ABR	91 min
Jul 17, 2:48 PM CDT	Excessive Heat Warning	ABR	30 hr
Jul 19, 2:50 AM CDT	Wind Advisory	ABR	17 hr
Aug 4, 4:00 AM CDT	Heat Advisory	ABR	16 hr
Aug 4, 2:22 PM CDT	Heat Advisory	ABR	30 hr
Aug 5, 3:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 5, 5:20 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 5, 5:28 PM CDT	Severe Thunderstorm Warning	ABR	47 min
Aug 5, 5:51 PM CDT	Severe Thunderstorm Warning	ABR	39 min
Aug 5, 6:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	48 min
Aug 5, 7:22 PM CDT	Mesoscale Discussion	SPC	83 min
Aug 5, 9:58 PM CDT	Mesoscale Discussion	SPC	92 min
Aug 6, 1:42 AM CDT	Flash Flood Warning	ABR	6 hr
Aug 23, 11:35 PM CDT	Special Weather Statement	ABR	25 min
Sep 7, 3:37 AM CDT	Fire Weather Watch	ABR	10 hr
Sep 7, 1:25 PM CDT	Red Flag Warning	ABR	31 hr
Oct 5, 2:40 PM CDT	Freeze Watch	ABR	12 hr
Oct 6, 2:52 AM CDT	Freeze Warning	ABR	31 hr
Oct 11, 2:52 AM CDT	High Wind Watch	ABR	12 hr
Oct 11, 3:03 AM CDT	Fire Weather Watch	ABR	11 hr
Oct 11, 2:25 PM CDT	Red Flag Warning	ABR	30 hr
Oct 11, 2:29 PM CDT	Wind Advisory	ABR	30 hr
Oct 12, 10:49 AM CDT	Fire Weather Watch	ABR	16 hr
Oct 12, 3:17 PM CDT	Red Flag Warning	ABR	28 hr
Oct 13, 2:41 AM CDT	High Wind Warning	ABR	16 hr
Oct 23, 3:34 AM CDT	Wind Advisory	ABR	36 hr
Oct 31, 2:55 PM CDT	Red Flag Warning	ABR	29 hr
Nov 1, 2:48 AM CDT	Red Flag Warning	ABR	40 hr
Nov 5, 3:06 AM CDT	Wind Advisory	ABR	40 hr
Nov 5, 2:42 PM CDT	Red Flag Warning	ABR	28 hr
Nov 7, 2:50 PM CST	Winter Storm Watch	ABR	37 hr
Nov 9, 3:33 AM CST	Winter Storm Warning	ABR	11 hr
Nov 9, 3:33 AM CST	Winter Weather Advisory	ABR	36 hr
Nov 9, 7:37 AM CST	Winter Weather Advisory	ABR	32 hr
Nov 9, 2:03 PM CST	Ice Storm Warning	ABR	22 hr
Nov 12, 5:00 AM CST	Dense Fog Advisory	ABR	6 hr
Dec 1, 2:52 PM CST	Wind Advisory	ABR	30 hr
Dec 9, 6:40 PM CST	Winter Storm Watch	ABR	68 hr
Dec 12, 2:54 AM CST	Winter Storm Warning	ABR	5 days
Dec 14, 11:58 AM CST	Blizzard Warning	ABR	51 hr
Dec 16, 1:43 PM CST	Winter Weather Advisory	ABR	10 hr
Dec 17, 2:03 PM CST	Wind Chill Watch	ABR	61 hr
Dec 19, 2:11 AM CST	Wind Chill Advisory	ABR	64 hr
Dec 19, 1:54 PM CST	Winter Storm Watch	ABR	48 hr
Dec 20, 2:55 AM CST	Wind Chill Warning	ABR	4 days
Dec 21, 2:53 AM CST	Winter Weather Advisory	ABR	25 hr
Dec 21, 2:11 PM CST	Blizzard Warning	ABR	60 hr
Dec 22, 9:23 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 22, 1:55 PM CST	Mesoscale Discussion	SPC	4 hr
Dec 24, 2:37 PM CST	Winter Weather Advisory	ABR	36 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	22
Tornado Warning	1
Severe Thunderstorm Watch	12
Tornado Watch	1
Mesoscale Discussion	28
Special Weather Statement	3
Flooding
Flash Flood Warning	1
Winter
Blizzard Warning	2
Ice Storm Warning	1
Winter Storm Warning	2
Winter Storm Watch	3
Winter Weather Advisory	9
Heat
Excessive Heat Warning	1
Heat Advisory	5
Cold
Freeze Warning	3
Wind Chill Warning	4
Freeze Watch	1
Wind Chill Watch	1
Frost Advisory	1
Wind Chill Advisory	5
Wind and dust
High Wind Warning	4
High Wind Watch	3
Wind Advisory	27
Fire
Red Flag Warning	10
Fire Weather Watch	4
Fog and smoke
Dense Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2021 2023

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.