Weather alerts in Carbon County, Wyoming, 2019

223 weather alerts in 2019, 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 2019. Tap one for its archive.

Alerts: 223
Warnings: 95
Watches: 55
Advisories: 49
Busiest month: February36 alerts
Busiest day: February 19, 20194 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, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	13	4	69%	13	54%	11 min
Flash flood warnings	0			0

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Cheyenne, WY: tornado warnings	36	15	58%	34	71%	11 min
NWS Cheyenne, WY: severe thunderstorm warnings	418	166	60%	360	90%	22 min
NWS Cheyenne, WY: flash flood warnings	36	21	42%	36	94%	67 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, 4:50 AM MST	Wind Chill Advisory	CYS	27 hr
Jan 5, 3:12 AM MST	Winter Weather Advisory	CYS	10 hr
Jan 5, 1:13 PM MST	Winter Storm Warning	CYS	55 hr
Jan 5, 1:27 PM MST	High Wind Watch	CYS	15 hr
Jan 6, 4:08 AM MST	High Wind Warning	CYS	52 hr
Jan 6, 1:20 PM MST	Winter Weather Advisory	CYS	31 hr
Jan 7, 2:18 PM MST	Snow Squall Warning	CYS	27 min
Jan 7, 2:44 PM MST	Snow Squall Warning	CYS	31 min
Jan 12, 12:41 AM MST	Dense Fog Advisory	CYS	8 hr
Jan 12, 8:45 PM MST	Dense Fog Advisory	CYS	11 hr
Jan 15, 8:59 AM MST	Winter Weather Advisory	CYS	42 hr
Jan 16, 2:35 AM MST	High Wind Watch	CYS	11 hr
Jan 16, 1:30 PM MST	High Wind Warning	CYS	17 hr
Jan 17, 3:08 AM MST	Winter Storm Warning	CYS	35 hr
Jan 17, 3:08 AM MST	Winter Weather Advisory	CYS	47 hr
Jan 18, 1:48 PM MST	High Wind Warning	CYS	45 hr
Jan 20, 3:12 AM MST	Winter Storm Watch	CYS	23 hr
Jan 20, 1:13 PM MST	Winter Storm Warning	CYS	46 hr
Jan 20, 1:13 PM MST	Winter Weather Advisory	CYS	46 hr
Jan 22, 2:14 AM MST	High Wind Watch	CYS	12 hr
Jan 22, 2:19 PM MST	High Wind Warning	CYS	30 hr
Jan 22, 3:15 PM MST	Winter Weather Advisory	CYS	44 hr
Jan 23, 2:42 PM MST	Snow Squall Warning	CYS	33 min
Jan 23, 3:18 PM MST	Snow Squall Warning	CYS	27 min
Jan 24, 2:57 PM MST	Winter Weather Advisory	CYS	38 hr
Jan 25, 1:45 AM MST	High Wind Watch	CYS	10 hr
Jan 25, 11:45 AM MST	High Wind Warning	CYS	63 hr
Jan 27, 10:00 PM MST	Winter Weather Advisory	CYS	10 hr
Jan 28, 1:07 PM MST	Wind Chill Advisory	CYS	18 hr
Jan 28, 1:14 PM MST	High Wind Watch	CYS	14 hr
Jan 29, 2:45 AM MST	High Wind Warning	CYS	50 hr
Feb 1, 2:57 AM MST	High Wind Watch	CYS	20 hr
Feb 1, 2:15 PM MST	High Wind Warning	CYS	28 hr
Feb 2, 1:53 AM MST	High Wind Watch	CYS	18 hr
Feb 2, 7:35 PM MST	High Wind Warning	CYS	23 hr
Feb 3, 2:26 AM MST	Winter Weather Advisory	CYS	26 hr
Feb 3, 11:24 AM MST	Snow Squall Warning	CYS	51 min
Feb 4, 1:22 AM MST	Winter Storm Watch	CYS	36 hr
Feb 4, 1:35 PM MST	Winter Storm Warning	CYS	57 hr
Feb 5, 1:38 AM MST	Winter Weather Advisory	CYS	47 hr
Feb 6, 1:52 AM MST	Wind Chill Watch	CYS	12 hr
Feb 6, 1:58 PM MST	Wind Chill Warning	CYS	21 hr
Feb 6, 1:58 PM MST	Wind Chill Advisory	CYS	43 hr
Feb 9, 1:47 PM MST	High Wind Watch	CYS	24 hr
Feb 10, 1:46 PM MST	High Wind Warning	CYS	43 hr
Feb 12, 1:46 PM MST	Winter Storm Watch	CYS	13 hr
Feb 12, 2:03 PM MST	High Wind Warning	CYS	45 hr
Feb 13, 2:24 AM MST	High Wind Warning	CYS	28 hr
Feb 13, 2:50 AM MST	Winter Storm Warning	CYS	53 hr
Feb 13, 2:50 AM MST	Winter Weather Advisory	CYS	53 hr
Feb 14, 4:12 AM MST	High Wind Watch	CYS	11 hr
Feb 14, 3:25 PM MST	High Wind Warning	CYS	28 hr
Feb 15, 2:45 PM MST	Winter Weather Advisory	CYS	32 hr
Feb 15, 11:55 PM MST	Snow Squall Warning	CYS	50 min
Feb 19, 1:51 AM MST	High Wind Watch	CYS	9 hr
Feb 19, 11:06 AM MST	High Wind Warning	CYS	23 hr
Feb 19, 11:12 AM MST	Winter Weather Advisory	CYS	33 hr
Feb 19, 1:20 PM MST	Wind Chill Advisory	CYS	19 hr
Feb 21, 2:22 PM MST	Winter Weather Advisory	CYS	40 hr
Feb 22, 3:11 PM MST	High Wind Watch	CYS	12 hr
Feb 23, 3:20 AM MST	High Wind Warning	CYS	24 hr
Feb 24, 2:53 AM MST	High Wind Watch	CYS	36 hr
Feb 24, 2:00 PM MST	High Wind Warning	CYS	52 hr
Feb 27, 2:01 AM MST	High Wind Warning	CYS	27 hr
Feb 27, 2:05 AM MST	Winter Storm Watch	CYS	24 hr
Feb 28, 1:48 AM MST	Winter Storm Watch	CYS	36 hr
Feb 28, 1:48 AM MST	Winter Storm Warning	CYS	3 days
Mar 1, 1:49 AM MST	Winter Weather Advisory	CYS	49 hr
Mar 4, 2:54 AM MST	Winter Storm Watch	CYS	24 hr
Mar 5, 2:35 AM MST	Winter Storm Warning	CYS	56 hr
Mar 7, 2:33 PM MST	Winter Storm Warning	CYS	44 hr
Mar 7, 2:33 PM MST	Winter Weather Advisory	CYS	44 hr
Mar 8, 1:23 PM MST	Snow Squall Warning	CYS	37 min
Mar 11, 3:06 AM MDT	Winter Storm Watch	CYS	12 hr
Mar 11, 3:25 PM MDT	Blizzard Warning	CYS	3 days
Mar 11, 3:25 PM MDT	Winter Storm Warning	CYS	42 hr
Mar 13, 6:20 AM MDT	Mesoscale Discussion	SPC	4 hr
Mar 21, 2:51 AM MDT	Winter Storm Watch	CYS	12 hr
Mar 28, 3:59 AM MDT	Winter Weather Advisory	CYS	50 hr
Apr 1, 3:15 PM MDT	Winter Weather Advisory	CYS	39 hr
Apr 8, 2:55 AM MDT	Winter Storm Watch	CYS	34 hr
Apr 8, 12:14 PM MDT	High Wind Warning	CYS	22 min
Apr 8, 12:36 PM MDT	High Wind Warning	CYS	4 hr
Apr 9, 3:27 AM MDT	Winter Storm Warning	CYS	48 hr
Apr 9, 12:58 PM MDT	Winter Weather Advisory	CYS	45 hr
Apr 13, 2:30 PM MDT	High Wind Watch	CYS	7 hr
Apr 13, 9:03 PM MDT	High Wind Warning	CYS	22 hr
Apr 21, 12:58 PM MDT	Special Weather Statement	CYS	32 min
Apr 21, 1:40 PM MDT	Special Weather Statement	CYS	35 min
Apr 26, 1:02 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 26, 3:10 PM MDT	Special Weather Statement	CYS	50 min
Apr 26, 5:36 PM MDT	Special Weather Statement	CYS	24 min
Apr 26, 6:07 PM MDT	Special Weather Statement	CYS	23 min
Apr 26, 6:35 PM MDT	Severe Thunderstorm Warning	CYS	40 min
Apr 26, 6:36 PM MDT	Severe Thunderstorm Warning	CYS	24 min
Apr 27, 2:31 PM MDT	Winter Storm Watch	CYS	37 hr
Apr 28, 2:28 AM MDT	Winter Storm Warning	CYS	3 days
Apr 29, 3:35 AM MDT	Winter Weather Advisory	CYS	53 hr
May 6, 4:42 PM MDT	Special Weather Statement	CYS	33 min
May 6, 4:55 PM MDT	Severe Thunderstorm Warning	CYS	50 min
May 7, 3:25 PM MDT	Special Weather Statement	CYS	35 min
May 8, 2:51 AM MDT	Winter Weather Advisory	CYS	33 hr
May 19, 3:07 AM MDT	Winter Storm Watch	CYS	11 hr
May 19, 1:53 PM MDT	Winter Storm Warning	CYS	66 hr
May 20, 3:29 AM MDT	Winter Weather Advisory	CYS	48 hr
May 23, 1:59 PM MDT	High Wind Warning	CYS	16 hr
May 24, 9:53 AM MDT	High Wind Warning	CYS	5 hr
May 26, 1:50 PM MDT	Winter Storm Watch	CYS	13 hr
May 27, 2:49 AM MDT	Winter Storm Warning	CYS	49 hr
May 28, 2:27 AM MDT	Winter Weather Advisory	CYS	25 hr
Jun 2, 1:04 PM MDT	Special Weather Statement	CYS	26 min
Jun 2, 2:13 PM MDT	Severe Thunderstorm Warning	CYS	32 min
Jun 8, 2:29 PM MDT	Frost Advisory	CYS	18 hr
Jun 9, 3:28 AM MDT	Frost Advisory	CYS	29 hr
Jun 13, 4:48 PM MDT	Special Weather Statement	CYS	42 min
Jun 13, 8:49 PM MDT	River Flood Warning	CYS	12 days
Jun 14, 2:13 PM MDT	Special Weather Statement	CYS	32 min
Jun 15, 1:25 PM MDT	Special Weather Statement	CYS	50 min
Jun 15, 5:36 PM MDT	Special Weather Statement	CYS	39 min
Jun 16, 9:10 PM MDT	Special Weather Statement	CYS	35 min
Jun 16, 9:30 PM MDT	Special Weather Statement	CYS	30 min
Jun 19, 3:05 AM MDT	High Wind Watch	CYS	34 hr
Jun 21, 10:30 AM MDT	River Flood Warning	CYS	34 hr
Jun 23, 9:58 AM MDT	River Flood Warning	CYS	66 hr
Jun 25, 3:42 PM MDT	Special Weather Statement	CYS	33 min
Jun 25, 9:02 PM MDT	Special Weather Statement	CYS	43 min
Jul 4, 1:56 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 4, 4:27 PM MDT	Severe Thunderstorm Warning	CYS	21 min
Jul 6, 4:54 PM MDT	Severe Thunderstorm Warning	CYS	37 min
Jul 6, 5:14 PM MDT	Severe Thunderstorm Warning	CYS	46 min
Jul 20, 5:07 PM MDT	Special Weather Statement	CYS	38 min
Aug 16, 4:34 PM MDT	Severe Thunderstorm Warning	CYS	26 min
Aug 16, 6:09 PM MDT	Severe Thunderstorm Warning	CYS	21 min
Aug 21, 4:20 PM MDT	Severe Thunderstorm Warning	CYS	55 min
Aug 21, 4:36 PM MDT	Areal Flood Advisory	CYS	3 hr
Aug 21, 4:49 PM MDT	Severe Thunderstorm Warning	CYS	26 min
Aug 21, 5:35 PM MDT	Areal Flood Advisory	CYS	3 hr
Aug 23, 2:08 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 6, 3:29 PM MDT	Special Weather Statement	CYS	61 min
Sep 6, 3:56 PM MDT	Severe Thunderstorm Warning	CYS	64 min
Sep 6, 4:54 PM MDT	Special Weather Statement	CYS	66 min
Sep 8, 3:30 PM MDT	Severe Thunderstorm Warning	CYS	50 min
Sep 10, 12:16 PM MDT	Freeze Watch	CYS	27 hr
Sep 11, 11:28 AM MDT	Mesoscale Discussion	SPC	2 hr
Sep 11, 3:21 PM MDT	Freeze Warning	CYS	17 hr
Sep 16, 2:15 PM MDT	High Wind Warning	CYS	28 hr
Sep 19, 3:09 PM MDT	Freeze Watch	CYS	12 hr
Sep 20, 2:59 AM MDT	Freeze Warning	CYS	30 hr
Sep 20, 2:07 PM MDT	High Wind Warning	CYS	19 hr
Sep 21, 3:23 AM MDT	Freeze Watch	CYS	15 hr
Sep 21, 6:32 PM MDT	Freeze Warning	CYS	14 hr
Sep 25, 2:39 PM MDT	High Wind Warning	CYS	28 hr
Sep 28, 2:48 AM MDT	High Wind Watch	CYS	23 hr
Sep 28, 5:48 AM MDT	Dense Fog Advisory	CYS	8 hr
Sep 29, 1:41 AM MDT	High Wind Warning	CYS	16 hr
Oct 2, 2:15 AM MDT	Freeze Watch	CYS	11 hr
Oct 2, 1:16 PM MDT	Freeze Warning	CYS	20 hr
Oct 3, 3:04 AM MDT	High Wind Watch	CYS	10 hr
Oct 3, 12:58 PM MDT	High Wind Warning	CYS	47 hr
Oct 7, 2:05 PM MDT	Winter Storm Watch	CYS	24 hr
Oct 8, 2:00 PM MDT	Winter Storm Watch	CYS	13 hr
Oct 8, 2:00 PM MDT	Winter Storm Warning	CYS	48 hr
Oct 9, 4:15 AM MDT	Winter Weather Advisory	CYS	34 hr
Oct 17, 2:50 AM MDT	High Wind Watch	CYS	12 hr
Oct 17, 2:31 PM MDT	High Wind Warning	CYS	27 hr
Oct 18, 3:10 AM MDT	High Wind Watch	CYS	36 hr
Oct 18, 3:44 AM MDT	Winter Storm Watch	CYS	22 hr
Oct 19, 1:42 AM MDT	High Wind Warning	CYS	43 hr
Oct 19, 1:51 AM MDT	Blizzard Warning	CYS	40 hr
Oct 19, 1:51 AM MDT	Winter Storm Warning	CYS	58 hr
Oct 21, 1:33 AM MDT	High Wind Watch	CYS	13 hr
Oct 21, 2:30 PM MDT	High Wind Warning	CYS	39 hr
Oct 24, 2:43 AM MDT	High Wind Watch	CYS	25 hr
Oct 25, 3:19 AM MDT	High Wind Warning	CYS	30 hr
Oct 25, 3:37 AM MDT	Winter Storm Watch	CYS	24 hr
Oct 26, 3:58 AM MDT	Winter Storm Warning	CYS	44 hr
Oct 26, 3:58 AM MDT	Winter Weather Advisory	CYS	41 hr
Oct 28, 3:18 AM MDT	Winter Weather Advisory	CYS	47 hr
Oct 29, 2:09 PM MDT	Wind Chill Advisory	CYS	20 hr
Oct 29, 8:47 PM MDT	Wind Chill Warning	CYS	13 hr
Oct 30, 2:35 PM MDT	High Wind Warning	CYS	24 hr
Oct 30, 2:35 PM MDT	Wind Chill Advisory	CYS	15 hr
Oct 30, 2:35 PM MDT	Winter Weather Advisory	CYS	8 hr
Nov 1, 2:34 AM MDT	High Wind Watch	CYS	11 hr
Nov 1, 1:59 PM MDT	High Wind Warning	CYS	21 hr
Nov 8, 1:51 AM MST	High Wind Watch	CYS	10 hr
Nov 8, 12:06 PM MST	High Wind Warning	CYS	26 hr
Nov 11, 3:14 AM MST	High Wind Watch	CYS	11 hr
Nov 11, 1:49 PM MST	High Wind Warning	CYS	40 hr
Nov 16, 3:41 AM MST	High Wind Watch	CYS	10 hr
Nov 16, 1:15 PM MST	High Wind Warning	CYS	40 hr
Nov 18, 1:15 PM MST	Winter Storm Watch	CYS	24 hr
Nov 19, 1:19 PM MST	Winter Storm Warning	CYS	37 hr
Nov 19, 1:19 PM MST	Winter Weather Advisory	CYS	46 hr
Nov 22, 2:01 PM MST	High Wind Watch	CYS	11 hr
Nov 23, 1:27 AM MST	High Wind Warning	CYS	46 hr
Nov 23, 1:07 PM MST	Winter Storm Watch	CYS	24 hr
Nov 24, 1:54 AM MST	Winter Storm Warning	CYS	63 hr
Nov 27, 2:31 AM MST	Winter Storm Watch	CYS	49 hr
Nov 29, 3:20 AM MST	Blizzard Warning	CYS	50 hr
Nov 29, 3:20 AM MST	Winter Storm Warning	CYS	38 hr
Nov 29, 3:20 AM MST	Winter Weather Advisory	CYS	56 hr
Dec 1, 3:16 AM MST	High Wind Watch	CYS	10 hr
Dec 1, 1:44 PM MST	High Wind Warning	CYS	51 hr
Dec 4, 2:25 PM MST	Winter Weather Advisory	CYS	27 hr
Dec 5, 1:24 PM MST	High Wind Watch	CYS	28 hr
Dec 6, 5:31 PM MST	High Wind Warning	CYS	28 hr
Dec 7, 1:01 PM MST	Winter Weather Advisory	CYS	44 hr
Dec 10, 2:34 AM MST	High Wind Watch	CYS	12 hr
Dec 10, 12:38 PM MST	High Wind Warning	CYS	27 hr
Dec 11, 2:45 AM MST	Winter Storm Watch	CYS	12 hr
Dec 11, 3:14 PM MST	Winter Storm Warning	CYS	3 days
Dec 11, 5:45 PM MST	High Wind Warning	CYS	44 hr
Dec 14, 2:25 AM MST	Winter Weather Advisory	CYS	27 hr
Dec 15, 1:26 PM MST	High Wind Watch	CYS	25 hr
Dec 16, 2:19 PM MST	High Wind Warning	CYS	51 hr
Dec 18, 1:11 AM MST	High Wind Watch	CYS	24 hr
Dec 19, 1:30 AM MST	High Wind Warning	CYS	53 hr
Dec 24, 1:00 PM MST	Winter Weather Advisory	CYS	34 hr
Dec 27, 3:19 AM MST	Winter Weather Advisory	CYS	57 hr
Dec 29, 2:02 PM MST	Wind Chill Advisory	CYS	19 hr
Dec 29, 2:02 PM MST	Wind Chill Advisory	CYS	43 hr
Dec 31, 2:17 AM MST	High Wind Warning	CYS	41 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	13
Mesoscale Discussion	5
Special Weather Statement	19
Flooding
River Flood Warning	3
Areal Flood Advisory	2
Winter
Blizzard Warning	3
Snow Squall Warning	7
Winter Storm Warning	20
Winter Storm Watch	20
Winter Weather Advisory	34
Cold
Freeze Warning	4
Wind Chill Warning	2
Freeze Watch	4
Wind Chill Watch	1
Frost Advisory	2
Wind Chill Advisory	8
Wind and dust
High Wind Warning	43
High Wind Watch	30
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 2018 2020

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.