Alert archive / South Dakota / Fall River County

Weather alerts in Fall River County, South Dakota, 2023

158 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Fall River County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 158
Warnings: 45
Watches: 23
Advisories: 24
Busiest month: July43 alerts
Busiest day: June 27, 20236 alerts

Over time

By month

Warning verification

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

Fall River County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	35	26	26%	41	78%	31 min
Flash flood warnings	0			0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Rapid City, SD: tornado warnings	6	2	67%	5	60%	18 min
NWS Rapid City, SD: severe thunderstorm warnings	331	236	29%	532	82%	24 min
NWS Rapid City, SD: flash flood warnings	11	5	55%	12	92%	78 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 1, 1:53 AM MST	Winter Storm Warning	UNR	59 hr
Jan 17, 2:29 AM MST	Winter Weather Advisory	UNR	45 hr
Jan 17, 3:37 AM MST	Dense Fog Advisory	UNR	8 hr
Jan 26, 8:30 PM MST	Winter Weather Advisory	UNR	49 hr
Jan 29, 12:35 PM MST	Wind Chill Advisory	UNR	22 hr
Jan 30, 1:45 PM MST	Wind Chill Advisory	UNR	19 hr
Feb 19, 1:00 PM MST	Winter Storm Watch	UNR	25 hr
Feb 20, 1:55 PM MST	Winter Storm Warning	UNR	63 hr
Feb 23, 12:44 AM MST	Wind Chill Advisory	UNR	10 hr
Feb 23, 1:48 PM MST	Wind Chill Advisory	UNR	19 hr
Feb 27, 1:29 PM MST	Wind Advisory	UNR	33 hr
Mar 6, 2:54 AM MST	Winter Weather Advisory	UNR	39 hr
Mar 8, 2:19 AM MST	Winter Weather Advisory	UNR	35 hr
Mar 17, 2:00 AM MDT	Wind Advisory	UNR	18 hr
Mar 21, 2:12 PM MDT	Winter Weather Advisory	UNR	37 hr
Mar 25, 5:01 PM MDT	Snow Squall Warning	UNR	44 min
Mar 30, 2:14 PM MDT	Winter Storm Warning	UNR	33 hr
Mar 30, 2:14 PM MDT	Winter Weather Advisory	UNR	28 hr
Apr 1, 2:24 PM MDT	Winter Storm Watch	UNR	24 hr
Apr 2, 2:03 PM MDT	Blizzard Warning	UNR	59 hr
Apr 4, 12:41 AM MDT	Mesoscale Discussion	SPC	4 hr
Apr 4, 1:57 AM MDT	Winter Weather Advisory	UNR	34 hr
Apr 4, 5:46 AM MDT	Mesoscale Discussion	SPC	29 min
Apr 10, 1:22 AM MDT	Fire Weather Watch	UNR	12 hr
Apr 10, 1:01 PM MDT	Red Flag Warning	UNR	31 hr
Apr 18, 3:15 AM MDT	High Wind Watch	UNR	10 hr
Apr 18, 12:58 PM MDT	Wind Advisory	UNR	31 hr
Apr 18, 4:46 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 18, 5:41 PM MDT	Special Weather Statement	UNR	34 min
Apr 18, 6:20 PM MDT	Special Weather Statement	UNR	25 min
Apr 20, 2:39 AM MDT	Wind Advisory	UNR	40 hr
Apr 27, 11:42 AM MDT	Mesoscale Discussion	SPC	2 hr
May 5, 3:40 PM MDT	Special Weather Statement	CYS	35 min
May 10, 2:02 PM MDT	Mesoscale Discussion	SPC	88 min
May 10, 9:13 PM MDT	Severe Thunderstorm Warning	UNR	31 min
May 16, 12:57 PM MDT	Mesoscale Discussion	SPC	2 hr
May 17, 11:52 AM MDT	Mesoscale Discussion	SPC	113 min
May 17, 2:22 PM MDT	Severe Thunderstorm Warning	UNR	32 min
May 26, 4:26 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 27, 2:01 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 27, 4:48 PM MDT	Mesoscale Discussion	SPC	87 min
May 27, 7:29 PM MDT	Special Weather Statement	UNR	46 min
May 30, 4:55 PM MDT	Special Weather Statement	UNR	35 min
May 31, 2:39 PM MDT	Mesoscale Discussion	SPC	3 hr
May 31, 4:53 PM MDT	Special Weather Statement	UNR	37 min
Jun 8, 7:53 PM MDT	Special Weather Statement	UNR	67 min
Jun 20, 10:50 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 21, 12:34 AM MDT	Severe Thunderstorm Warning	UNR	41 min
Jun 21, 12:54 AM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	51 min
Jun 23, 1:28 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 23, 4:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 23, 5:17 PM MDT	Tornado Watch	SPC	8 hr
Jun 23, 9:19 PM MDT	Special Weather Statement	UNR	41 min
Jun 26, 4:03 AM MDT	Special Weather Statement	UNR	42 min
Jun 26, 4:23 AM MDT	Severe Thunderstorm Warning	UNR	49 min
Jun 26, 5:18 AM MDT	Severe Thunderstorm Warning	UNR	42 min
Jun 26, 5:54 AM MDT	Severe Thunderstorm Warning	UNR	29 min
Jun 27, 2:02 AM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	43 min
Jun 27, 2:15 AM MDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 2:34 AM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	56 min
Jun 27, 12:09 PM MDT	Mesoscale Discussion	SPC	3 hr
Jun 27, 1:21 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 27, 4:32 PM MDT	Mesoscale Discussion	SPC	88 min
Jun 28, 1:21 PM MDT	Mesoscale Discussion	SPC	84 min
Jun 28, 1:56 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 28, 5:16 PM MDT	Mesoscale Discussion	SPC	119 min
Jun 28, 7:59 PM MDT	Mesoscale Discussion	SPC	91 min
Jun 30, 1:18 PM MDT	Severe Thunderstorm Warning	UNR	42 min
Jun 30, 1:55 PM MDT	Areal Flood Warning	UNR	4 hr
Jun 30, 3:08 PM MDT	Special Weather Statement	UNR	37 min
Jul 3, 2:47 PM MDT	Mesoscale Discussion	SPC	58 min
Jul 3, 3:03 PM MDT	Severe Thunderstorm Watch	SPC	11 hr
Jul 3, 7:43 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 3, 8:37 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	53 min
Jul 3, 9:30 PM MDT	Severe Thunderstorm Warning	UNR	60 min
Jul 3, 9:38 PM MDT	Mesoscale Discussion	SPC	97 min
Jul 6, 1:53 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 6, 8:30 PM MDT	Mesoscale Discussion	SPC	60 min
Jul 6, 9:01 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 11, 1:04 PM MDT	Mesoscale Discussion	SPC	116 min
Jul 11, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 13, 1:23 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 13, 1:49 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 14, 12:10 AM MDT	Special Weather Statement	UNR	35 min
Jul 16, 2:31 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 16, 4:16 PM MDT	Severe Thunderstorm Warning	UNR	25 min
Jul 17, 4:48 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 17, 5:17 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 17, 7:38 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 8:28 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	62 min
Jul 17, 9:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	64 min
Jul 17, 9:31 PM MDT	Severe Thunderstorm Warning	UNR	43 min
Jul 18, 2:15 PM MDT	Severe Thunderstorm Warning	UNR	45 min
Jul 18, 10:12 PM MDT	Special Weather Statement	UNR	48 min
Jul 18, 10:34 PM MDT	Special Weather Statement	UNR	41 min
Jul 18, 10:45 PM MDT	Severe Thunderstorm Warning	UNR	45 min
Jul 18, 11:16 PM MDT	Special Weather Statement	UNR	59 min
Jul 18, 11:38 PM MDT	Severe Thunderstorm Warning	UNR	37 min
Jul 22, 4:04 PM MDT	Special Weather Statement	UNR	26 min
Jul 23, 5:36 PM MDT	Special Weather Statement	UNR	24 min
Jul 24, 9:20 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Jul 24, 10:12 PM MDT	Severe Thunderstorm Warning	UNR	63 min
Jul 28, 11:15 PM MDT	Severe Thunderstorm Warning	UNR	60 min
Jul 29, 12:07 AM MDT	Severe Thunderstorm Warning	UNR	38 min
Jul 29, 12:38 AM MDT	Severe Thunderstorm Warning	UNR	51 min
Jul 29, 1:25 AM MDT	Special Weather Statement	UNR	50 min
Jul 30, 1:25 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 30, 1:56 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 30, 5:47 PM MDT	Severe Thunderstorm Warning	UNR	73 min
Jul 30, 8:23 PM MDT	Special Weather Statement	UNR	37 min
Jul 30, 8:51 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 30, 9:21 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	54 min
Jul 30, 10:12 PM MDT	Special Weather Statement	UNR	48 min
Jul 31, 9:08 PM MDT	Special Weather Statement	UNR	52 min
Aug 2, 2:03 PM MDT	Flood Watch	UNR	72 hr
Aug 3, 5:39 PM MDT	Special Weather Statement	UNR	36 min
Aug 3, 6:40 PM MDT	Areal Flood Advisory	UNR	3 hr
Aug 4, 2:22 PM MDT	Mesoscale Discussion	SPC	83 min
Aug 8, 4:34 PM MDT	Severe Thunderstorm Warning	UNR	41 min
Aug 10, 2:14 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 12, 1:56 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 6:07 PM MDT	Severe Thunderstorm Warning	UNR	39 min
Aug 12, 11:20 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Aug 13, 12:08 AM MDT	Severe Thunderstorm Warning	UNR	82 min
Aug 13, 12:24 AM MDT	Special Weather Statement	UNR	51 min
Aug 13, 1:07 AM MDT	Severe Thunderstorm Warning	UNR	38 min
Aug 17, 1:30 PM MDT	Heat Advisory	UNR	30 hr
Aug 22, 6:48 PM MDT	Special Weather Statement	UNR	57 min
Aug 22, 7:33 PM MDT	Special Weather Statement	UNR	42 min
Aug 22, 8:11 PM MDT	Special Weather Statement	UNR	49 min
Aug 24, 2:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 27, 8:04 PM MDT	Special Weather Statement	UNR	41 min
Sep 4, 12:45 PM MDT	Mesoscale Discussion	SPC	3 hr
Sep 4, 1:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	50 min
Sep 4, 2:05 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 8, 5:28 PM MDT	Mesoscale Discussion	SPC	92 min
Sep 9, 2:58 PM MDT	Severe Thunderstorm Warning	UNR	42 min
Sep 9, 4:16 PM MDT	Special Weather Statement	UNR	29 min
Sep 9, 4:19 PM MDT	Mesoscale Discussion	SPC	86 min
Sep 9, 6:00 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 22, 12:18 PM MDT	Mesoscale Discussion	SPC	117 min
Sep 22, 1:36 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Oct 2, 6:35 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Oct 2, 7:30 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	44 min
Oct 5, 1:46 AM MDT	Freeze Watch	UNR	33 hr
Oct 6, 2:03 AM MDT	Freeze Warning	UNR	30 hr
Oct 11, 2:07 AM MDT	High Wind Watch	UNR	12 hr
Oct 11, 1:43 PM MDT	Wind Advisory	UNR	52 hr
Nov 21, 2:22 AM MST	Winter Storm Watch	UNR	35 hr
Nov 22, 1:07 PM MST	Winter Weather Advisory	UNR	44 hr
Dec 2, 1:01 PM MST	Wind Advisory	UNR	27 hr
Dec 6, 2:05 AM MST	Wind Advisory	UNR	4 days
Dec 6, 1:43 PM MST	High Wind Warning	UNR	22 hr
Dec 24, 2:11 PM MST	Winter Storm Watch	UNR	12 hr
Dec 25, 2:05 AM MST	Winter Storm Warning	UNR	42 hr
Dec 25, 1:43 PM MST	Winter Weather Advisory	UNR	36 hr
Dec 26, 3:33 AM MST	Mesoscale Discussion	SPC	5 hr
Dec 31, 2:50 AM MST	Dense Fog Advisory	UNR	10 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	35
Severe Thunderstorm Watch	13
Tornado Watch	1
Mesoscale Discussion	39
Special Weather Statement	27
Flooding
Areal Flood Warning	1
Flood Watch	1
Areal Flood Advisory	1
Winter
Blizzard Warning	1
Snow Squall Warning	1
Winter Storm Warning	4
Winter Storm Watch	4
Winter Weather Advisory	9
Heat
Heat Advisory	1
Cold
Freeze Warning	1
Freeze Watch	1
Wind Chill Advisory	4
Wind and dust
High Wind Warning	1
High Wind Watch	2
Wind Advisory	7
Fire
Red Flag Warning	1
Fire Weather Watch	1
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 2022 2024

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.