Weather alerts in Carbon County, Wyoming, 2023

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

Carbon County and its neighbors

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

Alerts: 224
Warnings: 92
Watches: 65
Advisories: 42
Busiest month: February35 alerts
Busiest day: June 22, 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.

Carbon County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	15	4	73%	8	75%	25 min
Flash flood warnings	3	0	100%	0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Cheyenne, WY: tornado warnings	43	18	58%	34	76%	10 min
NWS Cheyenne, WY: severe thunderstorm warnings	414	168	59%	337	88%	21 min
NWS Cheyenne, WY: flash flood warnings	34	18	47%	36	92%	65 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 2, 2:54 AM MST	High Wind Watch	CYS	25 hr
Jan 3, 3:16 AM MST	Winter Weather Advisory	CYS	50 hr
Jan 3, 3:29 AM MST	High Wind Warning	CYS	50 hr
Jan 5, 1:19 PM MST	Winter Weather Advisory	CYS	40 hr
Jan 6, 1:01 AM MST	High Wind Watch	CYS	61 hr
Jan 7, 12:53 AM MST	High Wind Warning	CYS	4 days
Jan 8, 2:03 PM MST	High Wind Watch	CYS	24 hr
Jan 9, 1:41 PM MST	Winter Storm Warning	CYS	56 hr
Jan 9, 1:41 PM MST	Winter Weather Advisory	CYS	56 hr
Jan 12, 12:50 PM MST	High Wind Watch	CYS	48 hr
Jan 12, 12:50 PM MST	High Wind Warning	CYS	19 hr
Jan 13, 1:15 PM MST	High Wind Warning	CYS	28 hr
Jan 14, 1:50 AM MST	Winter Weather Advisory	CYS	48 hr
Jan 17, 2:26 AM MST	Winter Weather Advisory	CYS	57 hr
Jan 18, 2:11 AM MST	High Wind Watch	CYS	24 hr
Jan 18, 4:41 PM MST	High Wind Warning	CYS	18 hr
Jan 21, 1:22 AM MST	High Wind Watch	CYS	24 hr
Jan 24, 1:30 PM MST	High Wind Watch	CYS	24 hr
Jan 25, 1:03 PM MST	High Wind Warning	CYS	55 hr
Jan 25, 1:03 PM MST	Winter Storm Watch	CYS	13 hr
Jan 26, 2:29 AM MST	Winter Storm Warning	CYS	4 days
Jan 26, 2:29 AM MST	Winter Weather Advisory	CYS	4 days
Jan 26, 3:39 PM MST	Blizzard Warning	CYS	35 hr
Jan 30, 2:49 AM MST	High Wind Watch	CYS	12 hr
Jan 30, 4:51 AM MST	Wind Chill Advisory	CYS	28 hr
Jan 30, 2:25 PM MST	Winter Weather Advisory	CYS	59 hr
Jan 30, 2:33 PM MST	High Wind Warning	CYS	47 hr
Jan 30, 11:26 PM MST	Wind Chill Warning	CYS	10 hr
Feb 1, 1:39 PM MST	High Wind Watch	CYS	12 hr
Feb 1, 7:37 PM MST	High Wind Warning	CYS	6 hr
Feb 2, 1:24 AM MST	High Wind Warning	CYS	37 hr
Feb 3, 1:50 AM MST	High Wind Watch	CYS	12 hr
Feb 3, 1:44 PM MST	High Wind Warning	CYS	39 hr
Feb 5, 1:56 AM MST	Winter Weather Advisory	CYS	45 hr
Feb 5, 2:05 AM MST	High Wind Warning	CYS	33 hr
Feb 7, 2:28 AM MST	High Wind Watch	CYS	11 hr
Feb 7, 1:12 PM MST	Winter Weather Advisory	CYS	45 hr
Feb 7, 1:16 PM MST	High Wind Warning	CYS	29 hr
Feb 8, 5:44 PM MST	Mesoscale Discussion	SPC	4 hr
Feb 13, 2:43 AM MST	High Wind Watch	CYS	39 hr
Feb 13, 12:41 PM MST	High Wind Warning	CYS	29 hr
Feb 15, 1:11 AM MST	Wind Chill Advisory	CYS	32 hr
Feb 16, 1:35 AM MST	High Wind Watch	CYS	36 hr
Feb 16, 1:35 AM MST	High Wind Warning	CYS	39 hr
Feb 17, 1:53 PM MST	High Wind Watch	CYS	18 hr
Feb 17, 1:53 PM MST	High Wind Warning	CYS	35 hr
Feb 18, 1:51 AM MST	High Wind Watch	CYS	23 hr
Feb 18, 1:52 AM MST	Winter Weather Advisory	CYS	37 hr
Feb 18, 1:47 PM MST	Winter Storm Watch	CYS	25 hr
Feb 19, 1:14 AM MST	High Wind Warning	CYS	61 hr
Feb 19, 2:56 PM MST	Winter Storm Watch	CYS	12 hr
Feb 19, 2:56 PM MST	Winter Storm Warning	CYS	4 days
Feb 20, 2:59 AM MST	Blizzard Warning	CYS	3 days
Feb 21, 2:34 PM MST	Wind Chill Watch	CYS	11 hr
Feb 22, 1:25 AM MST	Wind Chill Warning	CYS	32 hr
Feb 24, 1:27 AM MST	High Wind Watch	CYS	24 hr
Feb 24, 1:27 AM MST	High Wind Warning	CYS	42 hr
Feb 25, 1:56 AM MST	High Wind Watch	CYS	23 hr
Feb 25, 2:00 AM MST	Winter Storm Watch	CYS	11 hr
Feb 25, 1:29 PM MST	Winter Storm Warning	CYS	3 days
Feb 26, 12:53 AM MST	High Wind Warning	CYS	31 hr
Feb 27, 1:33 PM MST	High Wind Watch	CYS	11 hr
Feb 27, 8:22 PM MST	High Wind Warning	CYS	22 hr
Mar 1, 2:07 PM MST	High Wind Watch	CYS	42 hr
Mar 2, 2:40 AM MST	High Wind Warning	CYS	29 hr
Mar 2, 1:50 PM MST	Winter Weather Advisory	CYS	33 hr
Mar 3, 2:29 AM MST	Winter Weather Advisory	CYS	63 hr
Mar 8, 2:41 AM MST	High Wind Watch	CYS	35 hr
Mar 9, 2:43 AM MST	Winter Storm Watch	CYS	11 hr
Mar 9, 1:31 PM MST	High Wind Warning	CYS	40 hr
Mar 9, 1:40 PM MST	Winter Storm Warning	CYS	45 hr
Mar 9, 1:40 PM MST	Winter Weather Advisory	CYS	45 hr
Mar 11, 6:16 AM MST	High Wind Warning	CYS	8 hr
Mar 13, 1:29 AM MDT	High Wind Watch	CYS	33 hr
Mar 13, 2:32 PM MDT	High Wind Warning	CYS	48 hr
Mar 14, 3:01 AM MDT	Winter Storm Warning	CYS	53 hr
Mar 14, 3:01 AM MDT	Winter Weather Advisory	CYS	53 hr
Mar 19, 12:12 PM MDT	High Wind Warning	CYS	8 hr
Mar 19, 1:29 PM MDT	Winter Weather Advisory	CYS	37 hr
Mar 20, 2:23 AM MDT	High Wind Watch	CYS	32 hr
Mar 21, 2:51 AM MDT	Winter Storm Warning	CYS	48 hr
Mar 21, 2:51 AM MDT	Winter Weather Advisory	CYS	45 hr
Mar 21, 4:01 AM MDT	High Wind Warning	CYS	13 hr
Mar 22, 2:47 AM MDT	High Wind Watch	CYS	14 hr
Mar 22, 4:54 PM MDT	High Wind Warning	CYS	10 hr
Mar 23, 2:44 PM MDT	Winter Weather Advisory	CYS	63 hr
Mar 24, 3:26 AM MDT	High Wind Watch	CYS	10 hr
Mar 24, 1:32 PM MDT	High Wind Warning	CYS	24 hr
Mar 29, 2:34 AM MDT	High Wind Watch	CYS	39 hr
Mar 29, 2:36 AM MDT	Winter Storm Watch	CYS	11 hr
Mar 29, 1:54 PM MDT	Winter Storm Warning	CYS	53 hr
Mar 30, 2:51 AM MDT	Winter Weather Advisory	CYS	40 hr
Mar 30, 5:45 PM MDT	High Wind Warning	CYS	66 hr
Mar 31, 2:07 AM MDT	High Wind Watch	CYS	17 hr
Apr 1, 3:12 AM MDT	Winter Storm Watch	CYS	49 hr
Apr 2, 3:35 AM MDT	Winter Storm Warning	CYS	71 hr
Apr 2, 3:35 AM MDT	Winter Weather Advisory	CYS	3 days
Apr 3, 2:57 PM MDT	Blizzard Warning	CYS	27 hr
Apr 5, 8:34 PM MDT	High Wind Warning	CYS	21 hr
Apr 13, 1:17 AM MDT	Winter Weather Advisory	CYS	53 hr
Apr 17, 1:52 PM MDT	High Wind Watch	CYS	13 hr
Apr 18, 3:19 AM MDT	High Wind Warning	CYS	39 hr
Apr 18, 4:46 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 20, 3:07 AM MDT	Winter Weather Advisory	CYS	54 hr
Apr 24, 2:13 AM MDT	Winter Weather Advisory	CYS	50 hr
Apr 24, 1:17 PM MDT	Winter Storm Warning	CYS	39 hr
Apr 26, 2:54 PM MDT	Winter Weather Advisory	CYS	38 hr
May 1, 11:21 AM MDT	Flood Watch	CYS	5 days
May 2, 12:52 PM MDT	Areal Flood Warning	CYS	3 days
May 4, 3:36 AM MDT	Areal Flood Warning	CYS	32 hr
May 9, 12:30 PM MDT	River Flood Watch	CYS	35 hr
May 10, 12:09 PM MDT	River Flood Warning	CYS	55 hr
May 10, 1:38 PM MDT	Special Weather Statement	CYS	52 min
May 10, 2:02 PM MDT	Mesoscale Discussion	SPC	88 min
May 10, 2:47 PM MDT	Special Weather Statement	CYS	43 min
May 10, 3:27 PM MDT	Special Weather Statement	CYS	48 min
May 11, 3:20 AM MDT	Winter Weather Advisory	CYS	31 hr
May 14, 2:04 PM MDT	River Flood Warning	CYS	21 days
May 15, 1:27 PM MDT	River Flood Watch	CYS	10 days
May 15, 8:10 PM MDT	Special Weather Statement	CYS	35 min
May 25, 2:03 PM MDT	Special Weather Statement	CYS	42 min
May 26, 12:43 PM MDT	Special Weather Statement	CYS	32 min
Jun 1, 3:33 AM MDT	Flood Watch	CYS	71 hr
Jun 5, 5:06 AM MDT	Flash Flood Watch	CYS	16 hr
Jun 6, 1:58 AM MDT	Flash Flood Watch	CYS	19 hr
Jun 6, 2:03 PM MDT	Areal Flood Advisory	CYS	117 min
Jun 7, 1:34 AM MDT	Flash Flood Watch	CYS	19 hr
Jun 7, 1:47 PM MDT	Areal Flood Advisory	CYS	3 hr
Jun 7, 4:16 PM MDT	Areal Flood Advisory	CYS	3 hr
Jun 8, 2:49 PM MDT	Areal Flood Advisory	CYS	4 hr
Jun 8, 4:13 PM MDT	Flash Flood Warning Considerable damage threat	CYS	3 hr
Jun 12, 2:08 PM MDT	Flash Flood Warning Considerable damage threat	CYS	3 hr
Jun 14, 1:39 PM MDT	Flood Watch	CYS	48 hr
Jun 21, 2:02 PM MDT	Severe Thunderstorm Warning	CYS	43 min
Jun 21, 2:40 PM MDT	Severe Thunderstorm Warning	CYS	35 min
Jun 22, 12:14 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 22, 1:19 PM MDT	Severe Thunderstorm Warning	CYS	41 min
Jun 22, 2:09 PM MDT	Special Weather Statement	CYS	51 min
Jun 22, 3:03 PM MDT	Special Weather Statement	CYS	42 min
Jun 22, 3:16 PM MDT	Severe Thunderstorm Warning	CYS	22 min
Jun 22, 3:21 PM MDT	Areal Flood Advisory	CYS	114 min
Jun 22, 3:54 PM MDT	Special Weather Statement	CYS	51 min
Jun 22, 4:44 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	46 min
Jun 22, 5:56 PM MDT	Mesoscale Discussion	SPC	94 min
Jun 23, 2:01 AM MDT	High Wind Watch	CYS	34 hr
Jun 23, 1:09 PM MDT	High Wind Warning	CYS	23 hr
Jun 29, 3:54 PM MDT	Special Weather Statement	CYS	51 min
Jul 3, 4:18 PM MDT	Severe Thunderstorm Warning	CYS	42 min
Jul 3, 4:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	65 min
Jul 3, 5:08 PM MDT	Mesoscale Discussion	SPC	97 min
Jul 3, 5:54 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	66 min
Jul 3, 10:41 PM MDT	Special Weather Statement	CYS	64 min
Jul 4, 4:08 PM MDT	Severe Thunderstorm Warning	CYS	67 min
Jul 4, 5:25 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	50 min
Jul 5, 1:25 AM MDT	Dense Fog Advisory	CYS	11 hr
Jul 6, 5:58 PM MDT	Special Weather Statement	CYS	32 min
Jul 7, 8:40 PM MDT	Special Weather Statement	CYS	35 min
Jul 17, 3:56 PM MDT	Special Weather Statement	CYS	49 min
Jul 17, 4:48 PM MDT	Severe Thunderstorm Warning	CYS	27 min
Jul 17, 6:49 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	26 min
Jul 20, 2:18 PM MDT	Flash Flood Warning	CYS	2 hr
Jul 26, 3:58 PM MDT	Special Weather Statement	CYS	32 min
Jul 26, 4:50 PM MDT	Severe Thunderstorm Warning	CYS	40 min
Jul 26, 5:24 PM MDT	Severe Thunderstorm Warning	CYS	36 min
Jul 27, 6:02 PM MDT	Special Weather Statement	CYS	28 min
Jul 29, 4:34 PM MDT	Special Weather Statement	CYS	26 min
Jul 31, 3:31 AM MDT	Flood Watch	CYS	20 hr
Aug 2, 2:28 AM MDT	Flood Watch	CYS	19 hr
Aug 2, 4:04 PM MDT	Areal Flood Advisory	CYS	3 hr
Aug 2, 10:11 PM MDT	Special Weather Statement	CYS	34 min
Aug 2, 11:01 PM MDT	Special Weather Statement	CYS	44 min
Aug 6, 9:19 PM MDT	Severe Thunderstorm Warning	CYS	71 min
Aug 7, 11:31 AM MDT	Special Weather Statement	CYS	44 min
Aug 7, 2:44 PM MDT	Areal Flood Advisory	CYS	2 hr
Aug 29, 1:33 AM MDT	Fire Weather Watch	CYS	19 hr
Aug 29, 8:11 PM MDT	Red Flag Warning	CYS	24 hr
Aug 30, 8:11 PM MDT	Fire Weather Watch	CYS	5 hr
Aug 31, 1:20 AM MDT	Red Flag Warning	CYS	19 hr
Sep 4, 3:54 AM MDT	High Wind Warning	CYS	23 hr
Sep 21, 2:23 PM MDT	High Wind Watch	CYS	14 hr
Sep 22, 4:00 AM MDT	High Wind Warning	CYS	35 hr
Sep 23, 1:26 PM MDT	Frost Advisory	CYS	19 hr
Sep 23, 1:26 PM MDT	Freeze Warning	CYS	19 hr
Sep 24, 1:22 AM MDT	Red Flag Warning	CYS	18 hr
Sep 27, 2:29 AM MDT	Red Flag Warning	CYS	17 hr
Sep 28, 1:56 AM MDT	Red Flag Warning	CYS	17 hr
Sep 29, 2:11 AM MDT	Red Flag Warning	CYS	16 hr
Sep 29, 2:49 PM MDT	Red Flag Warning	CYS	28 hr
Oct 9, 2:19 PM MDT	Fire Weather Watch	CYS	26 hr
Oct 9, 2:22 PM MDT	Winter Storm Watch	CYS	36 hr
Oct 11, 2:16 AM MDT	Winter Storm Watch	CYS	14 hr
Oct 11, 2:16 AM MDT	Winter Storm Warning	CYS	52 hr
Oct 11, 3:51 PM MDT	Winter Weather Advisory	CYS	38 hr
Oct 16, 12:59 AM MDT	High Wind Watch	CYS	43 hr
Oct 17, 1:16 AM MDT	High Wind Warning	CYS	18 hr
Oct 24, 3:16 PM MDT	High Wind Watch	CYS	28 hr
Oct 25, 6:57 PM MDT	High Wind Warning	CYS	29 hr
Oct 27, 1:48 AM MDT	Winter Weather Advisory	CYS	55 hr
Oct 31, 1:51 PM MDT	High Wind Watch	CYS	67 hr
Oct 31, 1:51 PM MDT	High Wind Warning	CYS	22 hr
Nov 1, 2:30 PM MDT	High Wind Warning	CYS	43 hr
Nov 4, 1:13 PM MDT	High Wind Watch	CYS	14 hr
Nov 5, 1:49 AM MST	High Wind Warning	CYS	15 hr
Nov 10, 12:53 AM MST	High Wind Watch	CYS	36 hr
Nov 10, 1:21 PM MST	High Wind Warning	CYS	42 hr
Nov 14, 1:14 PM MST	High Wind Watch	CYS	24 hr
Nov 15, 2:08 AM MST	High Wind Warning	CYS	54 hr
Nov 15, 2:14 AM MST	Winter Weather Advisory	CYS	47 hr
Nov 21, 1:09 AM MST	Winter Storm Watch	CYS	48 hr
Nov 22, 1:30 PM MST	Winter Storm Warning	CYS	64 hr
Nov 22, 1:30 PM MST	Winter Weather Advisory	CYS	64 hr
Nov 27, 1:10 AM MST	High Wind Warning	CYS	37 hr
Nov 30, 2:12 PM MST	High Wind Watch	CYS	24 hr
Nov 30, 2:21 PM MST	Winter Storm Watch	CYS	11 hr
Dec 1, 1:28 AM MST	High Wind Warning	CYS	4 days
Dec 1, 1:30 AM MST	Winter Storm Warning	CYS	4 days
Dec 2, 1:08 AM MST	Winter Weather Advisory	CYS	46 hr
Dec 5, 1:58 AM MST	High Wind Watch	CYS	59 hr
Dec 6, 1:45 AM MST	High Wind Warning	CYS	45 hr
Dec 7, 12:48 PM MST	Winter Weather Advisory	CYS	40 hr
Dec 8, 2:29 AM MST	High Wind Watch	CYS	23 hr
Dec 9, 1:51 AM MST	High Wind Watch	CYS	12 hr
Dec 9, 1:51 AM MST	High Wind Warning	CYS	45 hr
Dec 23, 2:10 PM MST	Winter Weather Advisory	CYS	21 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	15
Severe Thunderstorm Watch	1
Mesoscale Discussion	5
Special Weather Statement	20
Flooding
Areal Flood Warning	2
Flash Flood Warning	3
River Flood Warning	2
Flash Flood Watch	3
Flood Watch	5
River Flood Watch	2
Areal Flood Advisory	7
Winter
Blizzard Warning	3
Winter Storm Warning	13
Winter Storm Watch	11
Winter Weather Advisory	31
Cold
Freeze Warning	1
Wind Chill Warning	2
Wind Chill Watch	1
Frost Advisory	1
Wind Chill Advisory	2
Wind and dust
High Wind Warning	44
High Wind Watch	39
Fire
Red Flag Warning	7
Fire Weather Watch	3
Fog and smoke
Dense Fog Advisory	1

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.