Weather alerts in Carbon County, Wyoming, 2013

131 weather alerts in 2013, 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 2013. Tap one for its archive.

Alerts: 131
Warnings: 51
Watches: 36
Advisories: 33
Busiest month: December23 alerts
Busiest day: January 10, 20133 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, 2013

	Reports	Inside a warning
Tornado warnings	0
Severe thunderstorm warnings	4	0%
Flash flood warnings	0

Each office's whole area, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Rapid City, SD: tornado warnings	10	1	90%	3	33%	4 min
NWS Rapid City, SD: severe thunderstorm warnings	502	363	28%	673	90%	23 min
NWS Rapid City, SD: flash flood warnings	24	5	79%	14	93%	46 min
NWS Billings, MT: tornado warnings	15	2	87%	5	40%	7 min
NWS Billings, MT: severe thunderstorm warnings	196	118	40%	320	75%	24 min
NWS Billings, MT: flash flood warnings	44	15	66%	35	57%	52 min
NWS Cheyenne, WY: tornado warnings	27	15	44%	30	80%	11 min
NWS Cheyenne, WY: severe thunderstorm warnings	245	91	63%	261	72%	18 min
NWS Cheyenne, WY: flash flood warnings	16	8	50%	17	100%	63 min
NWS Riverton, WY: tornado warnings	7	0	100%	2	0%
NWS Riverton, WY: severe thunderstorm warnings	80	24	70%	44	61%	21 min
NWS Riverton, WY: flash flood warnings	15	0	100%	3	0%
NWS Salt Lake City, UT: tornado warnings	0			1	0%
NWS Salt Lake City, UT: severe thunderstorm warnings	44	15	66%	86	28%	21 min
NWS Salt Lake City, UT: flash flood warnings	123	41	67%	91	56%	89 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 6, 2:20 PM MST	High Wind Watch	CYS	19 hr
Jan 7, 9:01 AM MST	High Wind Warning	CYS	26 hr
Jan 8, 8:38 PM MST	High Wind Warning	CYS	7 hr
Jan 9, 2:12 PM MST	Winter Storm Watch	CYS	25 hr
Jan 10, 3:30 AM MST	High Wind Warning	CYS	11 hr
Jan 10, 3:10 PM MST	Winter Storm Warning	CYS	38 hr
Jan 10, 3:10 PM MST	Winter Weather Advisory	CYS	38 hr
Jan 13, 2:38 PM MST	Wind Chill Warning	CYS	18 hr
Jan 14, 2:00 PM MST	Wind Chill Advisory	CYS	11 hr
Jan 15, 1:11 AM MST	Wind Chill Warning	CYS	7 hr
Jan 20, 2:06 PM MST	High Wind Watch	CYS	15 hr
Jan 21, 4:52 AM MST	High Wind Warning	CYS	27 hr
Jan 22, 1:50 PM MST	High Wind Watch	CYS	37 hr
Jan 23, 3:27 AM MST	High Wind Warning	CYS	39 hr
Jan 27, 1:37 AM MST	Winter Weather Advisory	CYS	26 hr
Jan 28, 3:20 AM MST	Winter Storm Warning	CYS	3 days
Jan 28, 3:20 AM MST	Winter Weather Advisory	CYS	24 hr
Jan 29, 9:53 AM MST	High Wind Watch	CYS	17 hr
Jan 29, 8:44 PM MST	High Wind Warning	CYS	36 hr
Jan 31, 10:48 AM MST	High Wind Watch	CYS	3 hr
Jan 31, 1:50 PM MST	High Wind Warning	CYS	13 hr
Feb 1, 3:06 AM MST	Winter Weather Advisory	CYS	18 hr
Feb 4, 12:43 PM MST	High Wind Warning	CYS	6 hr
Feb 4, 7:08 PM MST	High Wind Warning	CYS	7 hr
Feb 7, 2:29 AM MST	Winter Storm Watch	CYS	24 hr
Feb 8, 2:16 AM MST	Winter Storm Warning	CYS	56 hr
Feb 12, 4:08 AM MST	High Wind Watch	CYS	10 hr
Feb 12, 2:27 PM MST	High Wind Warning	CYS	28 hr
Feb 14, 4:03 AM MST	Winter Weather Advisory	CYS	32 hr
Feb 16, 1:56 PM MST	High Wind Warning	CYS	21 hr
Feb 21, 2:05 PM MST	High Wind Watch	CYS	6 hr
Feb 21, 8:16 PM MST	High Wind Watch	CYS	13 hr
Feb 22, 9:31 AM MST	High Wind Warning	CYS	24 hr
Feb 23, 3:28 AM MST	Winter Weather Advisory	CYS	10 hr
Feb 23, 1:11 PM MST	Winter Storm Warning	CYS	28 hr
Feb 23, 1:11 PM MST	Winter Weather Advisory	CYS	29 hr
Feb 26, 3:33 AM MST	Winter Weather Advisory	CYS	14 hr
Mar 2, 2:07 AM MST	High Wind Watch	CYS	8 hr
Mar 2, 10:27 AM MST	High Wind Warning	CYS	40 hr
Mar 3, 1:58 AM MST	Winter Weather Advisory	CYS	25 hr
Mar 7, 3:32 AM MST	Winter Storm Watch	CYS	26 hr
Mar 8, 5:29 AM MST	Winter Storm Warning	CYS	30 hr
Mar 8, 5:29 AM MST	Winter Weather Advisory	CYS	34 hr
Mar 11, 5:43 PM MDT	Winter Weather Advisory	CYS	5 hr
Mar 16, 2:45 AM MDT	High Wind Watch	CYS	24 hr
Mar 16, 2:52 PM MDT	High Wind Warning	CYS	36 hr
Mar 18, 10:21 AM MDT	High Wind Warning	CYS	10 hr
Mar 20, 3:32 AM MDT	High Wind Watch	CYS	12 hr
Mar 20, 3:34 PM MDT	High Wind Warning	CYS	10 hr
Mar 21, 5:09 AM MDT	Winter Weather Advisory	CYS	15 hr
Mar 22, 3:49 AM MDT	Winter Weather Advisory	CYS	32 hr
Apr 7, 2:24 AM MDT	Winter Storm Watch	CYS	33 hr
Apr 8, 3:37 AM MDT	Winter Storm Warning	CYS	43 hr
Apr 8, 3:37 AM MDT	Winter Weather Advisory	CYS	38 hr
Apr 12, 2:37 PM MDT	High Wind Watch	CYS	13 hr
Apr 13, 3:15 AM MDT	High Wind Warning	CYS	16 hr
Apr 13, 3:16 AM MDT	Winter Weather Advisory	CYS	22 hr
Apr 14, 3:55 AM MDT	Winter Storm Watch	CYS	47 hr
Apr 14, 2:54 PM MDT	Winter Storm Warning	CYS	3 days
Apr 14, 2:54 PM MDT	Winter Weather Advisory	CYS	49 hr
Apr 19, 1:51 AM MDT	Winter Weather Advisory	CYS	43 hr
Apr 21, 2:22 AM MDT	Winter Storm Watch	CYS	20 hr
Apr 21, 10:01 PM MDT	Winter Storm Warning	CYS	26 hr
Apr 29, 3:33 AM MDT	High Wind Warning	CYS	17 hr
Apr 30, 3:58 AM MDT	Winter Weather Advisory	CYS	35 hr
May 16, 3:38 PM MDT	Special Weather Statement	CYS	37 min
May 19, 3:37 PM MDT	Winter Weather Advisory	CYS	23 hr
May 30, 3:39 AM MDT	High Wind Warning	CYS	15 hr
Jun 22, 1:25 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 30, 4:59 PM MDT	Special Weather Statement	CYS	46 min
Jul 3, 2:34 PM MDT	Special Weather Statement	CYS	26 min
Jul 12, 2:32 PM MDT	Special Weather Statement	CYS	43 min
Jul 25, 4:32 PM MDT	Special Weather Statement	CYS	43 min
Aug 23, 5:14 PM MDT	Special Weather Statement	CYS	61 min
Sep 9, 10:56 AM MDT	Flash Flood Watch	CYS	11 hr
Sep 12, 11:07 AM MDT	Flash Flood Watch	CYS	25 hr
Sep 14, 10:03 AM MDT	Flash Flood Watch	CYS	35 hr
Sep 17, 2:56 PM MDT	Special Weather Statement	CYS	64 min
Sep 17, 6:16 PM MDT	Mesoscale Discussion	SPC	89 min
Sep 17, 8:23 PM MDT	Mesoscale Discussion	SPC	67 min
Sep 19, 2:26 AM MDT	Frost Advisory	CYS	30 hr
Sep 25, 1:50 PM MDT	Mesoscale Discussion	SPC	115 min
Sep 29, 3:59 AM MDT	High Wind Watch	CYS	11 hr
Sep 29, 3:23 PM MDT	High Wind Warning	CYS	24 hr
Oct 2, 3:13 AM MDT	Winter Storm Watch	CYS	24 hr
Oct 3, 2:55 AM MDT	Winter Storm Warning	CYS	38 hr
Oct 4, 5:17 PM MDT	Winter Weather Advisory	CYS	5 hr
Oct 9, 2:49 PM MDT	High Wind Watch	CYS	24 hr
Oct 10, 3:42 AM MDT	Winter Weather Advisory	CYS	32 hr
Oct 10, 3:07 PM MDT	High Wind Warning	CYS	24 hr
Oct 13, 4:34 AM MDT	Winter Weather Advisory	CYS	41 hr
Oct 16, 3:26 PM MDT	Winter Weather Advisory	CYS	37 hr
Oct 17, 4:50 AM MDT	Winter Weather Advisory	CYS	19 hr
Oct 29, 2:21 PM MDT	High Wind Watch	CYS	25 hr
Oct 30, 2:55 PM MDT	High Wind Warning	CYS	30 hr
Nov 3, 2:27 AM MST	High Wind Warning	CYS	103 min
Nov 4, 3:08 AM MST	Winter Weather Advisory	CYS	31 hr
Nov 6, 2:39 PM MST	High Wind Watch	CYS	11 hr
Nov 7, 1:10 AM MST	High Wind Watch	CYS	14 hr
Nov 7, 1:10 AM MST	High Wind Warning	CYS	42 hr
Nov 15, 2:58 AM MST	High Wind Watch	CYS	35 hr
Nov 15, 2:03 PM MST	Winter Weather Advisory	CYS	13 hr
Nov 15, 2:20 PM MST	High Wind Warning	CYS	56 hr
Nov 16, 2:35 AM MST	Winter Storm Warning	CYS	29 hr
Nov 18, 5:14 AM MST	High Wind Warning	CYS	3 hr
Nov 20, 2:50 PM MST	Winter Weather Advisory	CYS	26 hr
Nov 30, 2:01 AM MST	High Wind Watch	CYS	37 hr
Nov 30, 2:14 AM MST	Winter Storm Watch	CYS	23 hr
Dec 1, 1:39 AM MST	Winter Weather Advisory	CYS	38 hr
Dec 1, 1:52 AM MST	High Wind Warning	CYS	45 hr
Dec 2, 3:49 PM MST	Winter Storm Watch	CYS	14 hr
Dec 2, 3:49 PM MST	Winter Storm Warning	CYS	43 hr
Dec 4, 12:30 PM MST	Wind Chill Warning	CYS	21 hr
Dec 5, 2:22 PM MST	Wind Chill Warning	CYS	18 hr
Dec 6, 1:51 PM MST	Wind Chill Warning	CYS	19 hr
Dec 7, 3:27 AM MST	Winter Weather Advisory	CYS	33 hr
Dec 8, 4:08 AM MST	High Wind Watch	CYS	23 hr
Dec 9, 2:54 AM MST	High Wind Warning	CYS	39 hr
Dec 9, 9:11 AM MST	Blizzard Warning	CYS	5 hr
Dec 11, 6:57 PM MST	High Wind Warning	CYS	3 hr
Dec 14, 2:23 AM MST	High Wind Watch	CYS	13 hr
Dec 14, 11:53 AM MST	High Wind Warning	CYS	43 hr
Dec 17, 2:01 PM MST	High Wind Warning	CYS	16 hr
Dec 18, 2:17 PM MST	Winter Weather Advisory	CYS	33 hr
Dec 22, 1:45 AM MST	High Wind Watch	CYS	25 hr
Dec 23, 2:22 AM MST	High Wind Warning	CYS	31 hr
Dec 23, 12:32 PM MST	Winter Weather Advisory	CYS	29 hr
Dec 28, 1:22 PM MST	High Wind Watch	CYS	14 hr
Dec 29, 3:18 AM MST	High Wind Warning	CYS	27 hr
Dec 30, 6:00 AM MST	High Wind Watch	CYS	4 hr
Dec 30, 10:09 AM MST	High Wind Warning	CYS	37 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
Mesoscale Discussion	4
Special Weather Statement	7
Flooding
Flash Flood Watch	3
Winter
Blizzard Warning	1
Winter Storm Warning	11
Winter Storm Watch	9
Winter Weather Advisory	31
Cold
Wind Chill Warning	5
Frost Advisory	1
Wind Chill Advisory	1
Wind and dust
High Wind Warning	34
High Wind Watch	24

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2012 2014

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.