Weather alerts in Weston County, Wyoming, 2023

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

Weston County and its neighbors

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

Alerts: 166
Warnings: 61
Watches: 33
Advisories: 26
Busiest month: July38 alerts
Busiest day: June 21, 20239 alerts

Over time

By month

Warning verification

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

1 of 3 tornado warnings covering Weston County in 2023 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 21 minutes after it went out.

Weston County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	1	67%	2	100%	21 min
Severe thunderstorm warnings	44	33	25%	22	95%	22 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 3, 8:31 PM MST	Dense Fog Advisory	UNR	13 hr
Jan 17, 3:37 AM MST	Dense Fog Advisory	UNR	8 hr
Jan 17, 5:09 PM MST	Dense Fog Advisory	UNR	18 hr
Jan 24, 4:01 AM MST	Winter Storm Watch	UNR	10 hr
Jan 24, 1:36 PM MST	Winter Storm Warning	UNR	29 hr
Jan 25, 1:49 PM MST	Winter Storm Watch	UNR	13 hr
Jan 26, 2:59 AM MST	Winter Storm Watch	UNR	23 hr
Jan 26, 2:59 AM MST	Winter Weather Advisory	UNR	18 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 29, 8:22 PM MST	Wind Chill Warning	UNR	15 hr
Jan 30, 1:45 PM MST	Wind Chill Advisory	UNR	19 hr
Feb 5, 12:55 PM MST	Winter Weather Advisory	UNR	26 hr
Feb 8, 1:41 PM MST	Winter Weather Advisory	UNR	19 hr
Feb 13, 2:41 AM MST	Winter Storm Watch	UNR	11 hr
Feb 13, 1:32 PM MST	Winter Storm Warning	UNR	33 hr
Feb 19, 1:00 PM MST	Winter Storm Watch	UNR	25 hr
Feb 20, 7:43 AM MST	Winter Weather Advisory	UNR	9 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
Mar 6, 2:54 AM MST	Winter Weather Advisory	UNR	39 hr
Mar 7, 1:09 PM MST	Winter Storm Watch	UNR	13 hr
Mar 8, 2:19 AM MST	Winter Weather Advisory	UNR	35 hr
Mar 13, 1:31 PM MDT	High Wind Watch	UNR	24 hr
Mar 14, 1:05 PM MDT	High Wind Warning	UNR	23 hr
Mar 21, 2:12 PM MDT	Winter Weather Advisory	UNR	37 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 2, 2:03 PM MDT	Winter Storm 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 18, 3:15 AM MDT	High Wind Watch	UNR	10 hr
Apr 18, 4:46 PM MDT	Mesoscale Discussion	SPC	2 hr
May 5, 12:51 PM MDT	Mesoscale Discussion	SPC	114 min
May 10, 2:02 PM MDT	Mesoscale Discussion	SPC	88 min
May 10, 10:37 PM MDT	Severe Thunderstorm Warning	UNR	38 min
May 26, 2:42 PM MDT	Mesoscale Discussion	SPC	2 hr
May 26, 4:26 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 26, 7:15 PM MDT	Special Weather Statement	UNR	30 min
May 27, 1:12 PM MDT	Mesoscale Discussion	SPC	3 hr
May 27, 2:01 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 27, 2:42 PM MDT	Severe Thunderstorm Warning	UNR	63 min
May 27, 3:44 PM MDT	Severe Thunderstorm Warning	UNR	61 min
May 27, 4:48 PM MDT	Mesoscale Discussion	SPC	87 min
May 27, 5:46 PM MDT	Severe Thunderstorm Warning	UNR	44 min
May 29, 4:19 PM MDT	Special Weather Statement	UNR	41 min
May 29, 4:35 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Jun 20, 12:53 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 20, 7:34 PM MDT	Severe Thunderstorm Warning	UNR	56 min
Jun 20, 7:58 PM MDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 20, 8:01 PM MDT	Severe Thunderstorm Warning	UNR	29 min
Jun 20, 8:28 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	62 min
Jun 20, 8:53 PM MDT	Severe Thunderstorm Warning	UNR	53 min
Jun 20, 9:16 PM MDT	Severe Thunderstorm Warning	UNR	27 min
Jun 20, 9:24 PM MDT	Severe Thunderstorm Warning	UNR	36 min
Jun 20, 9:58 PM MDT	Severe Thunderstorm Warning	UNR	47 min
Jun 20, 10:50 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 22, 9:18 PM MDT	Areal Flood Advisory	UNR	4 hr
Jun 23, 1:28 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 23, 2:22 PM MDT	Tornado Watch	SPC	9 hr
Jun 23, 5:59 PM MDT	Mesoscale Discussion	SPC	91 min
Jun 23, 6:26 PM MDT	Tornado Warning	UNR	49 min
Jun 23, 6:52 PM MDT	Tornado Warning	UNR	38 min
Jun 23, 7:29 PM MDT	Severe Thunderstorm Warning	UNR	61 min
Jun 23, 7:42 PM MDT	Tornado Warning	UNR	22 min
Jun 26, 2:24 PM MDT	Mesoscale Discussion	SPC	3 hr
Jun 26, 6:07 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 26, 10:42 PM MDT	Special Weather Statement	UNR	63 min
Jun 27, 12:21 AM MDT	Severe Thunderstorm Warning	UNR	54 min
Jun 27, 1:11 AM MDT	Severe Thunderstorm Warning	UNR	64 min
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, 2:57 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Jun 28, 3:43 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	66 min
Jun 28, 5:16 PM MDT	Mesoscale Discussion	SPC	119 min
Jun 28, 7:59 PM MDT	Mesoscale Discussion	SPC	91 min
Jun 29, 1:34 PM MDT	Severe Thunderstorm Warning	UNR	37 min
Jun 29, 3:47 PM MDT	Areal Flood Advisory	UNR	18 hr
Jun 29, 4:06 PM MDT	Special Weather Statement	UNR	24 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, 9:36 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	54 min
Jul 6, 1:53 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 6, 2:20 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 6, 7:23 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 8, 2:54 PM MDT	Severe Thunderstorm Warning	UNR	66 min
Jul 8, 3:51 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	56 min
Jul 11, 1:04 PM MDT	Mesoscale Discussion	SPC	116 min
Jul 11, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 11, 6:27 PM MDT	Mesoscale Discussion	SPC	93 min
Jul 11, 8:51 PM MDT	Severe Thunderstorm Warning	UNR	24 min
Jul 11, 9:07 PM MDT	Severe Thunderstorm Warning	UNR	53 min
Jul 11, 11:04 PM MDT	Severe Thunderstorm Warning	UNR	56 min
Jul 13, 1:23 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 4:48 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 17, 5:00 PM MDT	Severe Thunderstorm Warning	UNR	60 min
Jul 17, 5:17 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 17, 6:04 PM MDT	Severe Thunderstorm Warning	UNR	56 min
Jul 17, 6:39 PM MDT	Severe Thunderstorm Warning	UNR	21 min
Jul 17, 6:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	55 min
Jul 17, 7:38 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 7:39 PM MDT	Severe Thunderstorm Warning	UNR	66 min
Jul 24, 8:14 PM MDT	Special Weather Statement	UNR	46 min
Jul 24, 8:54 PM MDT	Special Weather Statement	UNR	51 min
Jul 24, 9:20 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Jul 26, 6:23 PM MDT	Special Weather Statement	UNR	52 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, 6:20 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	55 min
Jul 30, 7:12 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	78 min
Jul 30, 7:34 PM MDT	Severe Thunderstorm Warning	UNR	56 min
Jul 30, 7:42 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	63 min
Jul 30, 8:29 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	48 min
Jul 30, 8:43 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	62 min
Aug 2, 2:03 PM MDT	Flood Watch	UNR	72 hr
Aug 3, 6:54 PM MDT	Special Weather Statement	UNR	36 min
Aug 3, 7:01 PM MDT	Severe Thunderstorm Warning	UNR	44 min
Aug 10, 6:50 PM MDT	Special Weather Statement	UNR	40 min
Aug 12, 3:26 PM MDT	Special Weather Statement	UNR	34 min
Aug 12, 4:07 PM MDT	Special Weather Statement	UNR	38 min
Aug 12, 5:20 PM MDT	Severe Thunderstorm Warning	UNR	55 min
Aug 12, 5:28 PM MDT	Special Weather Statement	UNR	32 min
Aug 20, 1:23 PM MDT	Fire Weather Watch	UNR	12 hr
Aug 21, 1:44 AM MDT	Red Flag Warning	UNR	18 hr
Aug 22, 6:29 PM MDT	Special Weather Statement	UNR	61 min
Aug 22, 6:48 PM MDT	Special Weather Statement	UNR	57 min
Aug 28, 1:32 PM MDT	Fire Weather Watch	UNR	24 hr
Aug 29, 1:44 PM MDT	Red Flag Warning	UNR	30 hr
Sep 4, 12:45 PM MDT	Mesoscale Discussion	SPC	3 hr
Sep 4, 2:00 PM MDT	Severe Thunderstorm Warning Considerable damage threat	UNR	45 min
Sep 4, 2:05 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 9, 4:19 PM MDT	Mesoscale Discussion	SPC	86 min
Sep 9, 6:00 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 9, 7:48 PM MDT	Special Weather Statement	UNR	27 min
Sep 9, 7:49 PM MDT	Mesoscale Discussion	SPC	56 min
Sep 9, 8:05 PM MDT	Severe Thunderstorm Warning	UNR	30 min
Sep 10, 5:00 PM MDT	Severe Thunderstorm Warning	UNR	37 min
Sep 22, 12:11 PM MDT	Severe Thunderstorm Warning	UNR	35 min
Sep 22, 12:18 PM MDT	Mesoscale Discussion	SPC	117 min
Sep 22, 1:36 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Oct 5, 1:46 AM MDT	Freeze Watch	UNR	12 hr
Oct 5, 1:46 AM MDT	Freeze Watch	UNR	33 hr
Oct 5, 1:20 PM MDT	Frost Advisory	UNR	19 hr
Oct 6, 2:03 AM MDT	Freeze Warning	UNR	30 hr
Oct 10, 2:50 AM MDT	Winter Storm Watch	UNR	35 hr
Oct 11, 1:38 PM MDT	Winter Weather Advisory	UNR	26 hr
Oct 25, 1:56 PM MDT	Winter Weather Advisory	UNR	32 hr
Nov 12, 1:55 PM MST	Fire Weather Watch	UNR	11 hr
Nov 13, 1:20 AM MST	Red Flag Warning	UNR	16 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
Nov 23, 2:10 AM MST	Winter Storm Warning	UNR	31 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 22, 1:49 PM MST	Winter Weather Advisory	UNR	50 hr
Dec 25, 2:05 AM 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

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	3
Severe Thunderstorm Watch	14
Tornado Watch	1
Mesoscale Discussion	31
Special Weather Statement	15
Flooding
Flood Watch	1
Areal Flood Advisory	2
Winter
Blizzard Warning	1
Winter Storm Warning	6
Winter Storm Watch	10
Winter Weather Advisory	15
Cold
Freeze Warning	1
Wind Chill Warning	1
Freeze Watch	2
Frost Advisory	1
Wind Chill Advisory	4
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	1
Fire
Red Flag Warning	3
Fire Weather Watch	3
Fog and smoke
Dense Fog Advisory	3

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.