Alert archive / Colorado / Cheyenne County

Weather alerts in Cheyenne County, Colorado, 2013

220 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cheyenne County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts: 220
Warnings: 62
Watches: 44
Advisories: 39
Busiest month: June59 alerts
Busiest day: May 27, 20137 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 4 tornado warnings covering Cheyenne County in 2013 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 15 minutes after it went out.

Cheyenne County, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	1	75%	2	50%	15 min
Severe thunderstorm warnings	31	14	55%	21	71%	16 min
Flash flood warnings	3	1	67%	0

Each office's whole area, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Goodland, KS: tornado warnings	21	3	86%	12	25%	21 min
NWS Goodland, KS: severe thunderstorm warnings	331	133	60%	263	82%	24 min
NWS Goodland, KS: flash flood warnings	27	5	81%	7	71%	66 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 9, 11:37 AM MST	Freezing Rain Advisory	GLD	15 hr
Jan 9, 1:36 PM MST	High Wind Watch	GLD	37 hr
Jan 10, 11:07 AM MST	Fire Weather Watch	GLD	16 hr
Jan 11, 2:40 AM MST	Red Flag Warning	GLD	14 hr
Jan 11, 2:40 AM MST	High Wind Warning	GLD	14 hr
Jan 11, 11:37 AM MST	Blowing Dust Advisory	GLD	5 hr
Jan 27, 10:25 PM MST	Dense Fog Advisory	GLD	16 hr
Feb 8, 10:55 AM MST	Wind Advisory	GLD	8 hr
Feb 9, 3:32 AM MST	Wind Advisory	GLD	15 hr
Feb 9, 3:24 PM MST	High Wind Watch	GLD	12 hr
Feb 9, 4:33 PM MST	High Wind Warning	GLD	2 hr
Feb 10, 3:22 AM MST	Wind Advisory	GLD	14 hr
Feb 16, 3:05 AM MST	Fire Weather Watch	GLD	11 hr
Feb 16, 1:41 PM MST	Red Flag Warning	GLD	27 hr
Feb 17, 2:14 PM MST	Wind Advisory	GLD	7 hr
Feb 18, 1:53 AM MST	Wind Advisory	GLD	11 hr
Feb 18, 3:17 PM MST	Winter Storm Watch	GLD	24 hr
Feb 19, 3:06 PM MST	Winter Storm Warning	GLD	50 hr
Feb 23, 2:00 PM MST	Winter Weather Advisory	GLD	33 hr
Mar 8, 8:42 AM MST	Winter Storm Watch	GLD	18 hr
Mar 8, 2:19 PM MST	Blizzard Warning	GLD	41 hr
Mar 17, 11:32 AM MDT	Wind Advisory	GLD	3 hr
Mar 17, 2:43 PM MDT	Fire Weather Watch	GLD	12 hr
Mar 17, 2:43 PM MDT	Red Flag Warning	GLD	28 hr
Mar 19, 3:36 AM MDT	Red Flag Warning	GLD	15 hr
Mar 21, 1:58 PM MDT	Winter Storm Watch	GLD	25 hr
Mar 22, 2:50 PM MDT	Winter Weather Advisory	GLD	36 hr
Apr 4, 1:46 PM MDT	Fire Weather Watch	GLD	14 hr
Apr 5, 3:53 AM MDT	Red Flag Warning	GLD	12 hr
Apr 8, 1:36 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 8, 2:16 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Apr 8, 3:29 PM MDT	Winter Weather Advisory	GLD	36 hr
Apr 8, 3:37 PM MDT	Wind Advisory	GLD	27 hr
Apr 8, 5:09 PM MDT	Mesoscale Discussion	SPC	66 min
Apr 13, 3:12 PM MDT	Red Flag Warning	GLD	5 hr
Apr 14, 11:10 AM MDT	Red Flag Warning	GLD	9 hr
Apr 17, 3:50 AM MDT	Winter Weather Advisory	GLD	29 hr
Apr 21, 1:57 PM MDT	Wind Advisory	GLD	30 hr
Apr 22, 3:53 PM MDT	Winter Weather Advisory	GLD	17 hr
Apr 26, 12:36 PM MDT	Red Flag Warning	GLD	5 hr
Apr 30, 2:52 PM MDT	Wind Advisory	GLD	21 hr
May 1, 4:59 AM MDT	Winter Weather Advisory	GLD	23 hr
May 8, 12:56 PM MDT	Special Weather Statement	GLD	34 min
May 8, 1:06 PM MDT	Mesoscale Discussion	SPC	24 min
May 8, 1:25 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
May 8, 1:31 PM MDT	Severe Thunderstorm Warning	GLD	44 min
May 8, 2:19 PM MDT	Special Weather Statement	GLD	56 min
May 8, 4:17 PM MDT	Mesoscale Discussion	SPC	58 min
May 18, 1:42 PM MDT	Tornado Watch	SPC	8 hr
May 19, 1:47 AM MDT	Special Weather Statement	GLD	28 min
May 19, 2:16 AM MDT	Severe Thunderstorm Warning	GLD	59 min
May 24, 1:57 PM MDT	Mesoscale Discussion	SPC	3 hr
May 24, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
May 24, 3:08 PM MDT	Fire Weather Watch	GLD	13 hr
May 24, 4:45 PM MDT	Severe Thunderstorm Warning	GLD	60 min
May 24, 5:16 PM MDT	Severe Thunderstorm Warning	GLD	44 min
May 25, 2:27 PM MDT	Mesoscale Discussion	SPC	93 min
May 27, 1:00 PM MDT	Mesoscale Discussion	SPC	60 min
May 27, 1:19 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 27, 2:57 PM MDT	Severe Thunderstorm Warning	GLD	63 min
May 27, 3:51 PM MDT	Special Weather Statement	GLD	24 min
May 27, 3:55 PM MDT	Tornado Warning Tornado observed	GLD	35 min
May 27, 4:30 PM MDT	Tornado Warning	GLD	30 min
May 27, 4:41 PM MDT	Mesoscale Discussion	SPC	94 min
May 28, 4:21 AM MDT	Special Weather Statement	GLD	39 min
May 28, 4:37 AM MDT	Severe Thunderstorm Warning	GLD	53 min
May 28, 2:08 PM MDT	Mesoscale Discussion	SPC	2 hr
May 28, 6:52 PM MDT	Mesoscale Discussion	SPC	113 min
May 29, 2:01 PM MDT	Severe Thunderstorm Warning	GLD	59 min
May 29, 2:43 PM MDT	Severe Thunderstorm Warning	GLD	47 min
May 29, 2:48 PM MDT	Tornado Warning	GLD	42 min
May 29, 3:01 PM MDT	Severe Thunderstorm Warning	GLD	29 min
May 29, 3:30 PM MDT	Severe Thunderstorm Warning	GLD	60 min
May 30, 3:00 AM MDT	Fire Weather Watch	GLD	24 hr
May 31, 3:00 AM MDT	Red Flag Warning	GLD	17 hr
Jun 4, 2:40 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 4, 3:51 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 4, 6:01 PM MDT	Special Weather Statement	GLD	9 min
Jun 4, 6:09 PM MDT	Severe Thunderstorm Warning	GLD	51 min
Jun 4, 6:35 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 4, 8:18 PM MDT	Mesoscale Discussion	SPC	87 min
Jun 9, 2:56 PM MDT	Fire Weather Watch	GLD	35 hr
Jun 11, 1:58 AM MDT	Red Flag Warning	GLD	19 hr
Jun 12, 2:46 PM MDT	Fire Weather Watch	GLD	11 hr
Jun 13, 1:14 PM MDT	Mesoscale Discussion	SPC	91 min
Jun 13, 3:44 PM MDT	Severe Thunderstorm Warning	GLD	61 min
Jun 13, 4:04 PM MDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 13, 4:25 PM MDT	Severe Thunderstorm Warning	GLD	65 min
Jun 13, 5:18 PM MDT	Severe Thunderstorm Warning	GLD	27 min
Jun 13, 5:30 PM MDT	Severe Thunderstorm Warning	GLD	60 min
Jun 13, 6:46 PM MDT	Mesoscale Discussion	SPC	59 min
Jun 14, 1:38 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 15, 1:53 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 15, 2:34 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 15, 5:23 PM MDT	Severe Thunderstorm Warning	GLD	67 min
Jun 15, 5:57 PM MDT	Mesoscale Discussion	SPC	63 min
Jun 15, 6:10 PM MDT	Special Weather Statement	GLD	35 min
Jun 16, 1:28 PM MDT	Mesoscale Discussion	SPC	92 min
Jun 16, 2:23 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 16, 5:17 PM MDT	Mesoscale Discussion	SPC	88 min
Jun 17, 1:38 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 17, 2:21 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 17, 4:11 PM MDT	Special Weather Statement	GLD	34 min
Jun 17, 4:43 PM MDT	Special Weather Statement	GLD	32 min
Jun 17, 5:09 PM MDT	Mesoscale Discussion	SPC	66 min
Jun 17, 5:16 PM MDT	Special Weather Statement	GLD	29 min
Jun 17, 5:24 PM MDT	Severe Thunderstorm Warning	GLD	66 min
Jun 17, 6:06 PM MDT	Tornado Warning	GLD	24 min
Jun 17, 6:27 PM MDT	Severe Thunderstorm Warning	GLD	63 min
Jun 17, 7:31 PM MDT	Special Weather Statement	GLD	29 min
Jun 17, 7:57 PM MDT	Special Weather Statement	GLD	33 min
Jun 17, 8:06 PM MDT	Severe Thunderstorm Warning	GLD	39 min
Jun 18, 1:53 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 18, 5:11 PM MDT	Mesoscale Discussion	SPC	94 min
Jun 18, 7:10 PM MDT	Special Weather Statement	GLD	35 min
Jun 18, 7:37 PM MDT	Severe Thunderstorm Warning	GLD	53 min
Jun 18, 7:52 PM MDT	Mesoscale Discussion	SPC	83 min
Jun 20, 4:44 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 4:18 PM MDT	Tornado Watch	SPC	7 hr
Jun 22, 6:47 PM MDT	Mesoscale Discussion	SPC	88 min
Jun 23, 2:49 PM MDT	Fire Weather Watch	GLD	13 hr
Jun 23, 3:48 PM MDT	Mesoscale Discussion	SPC	87 min
Jun 23, 4:40 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 23, 7:19 PM MDT	Mesoscale Discussion	SPC	56 min
Jun 23, 9:29 PM MDT	Special Weather Statement	GLD	61 min
Jun 23, 9:54 PM MDT	Mesoscale Discussion	SPC	66 min
Jun 23, 10:09 PM MDT	Special Weather Statement	GLD	51 min
Jun 23, 10:13 PM MDT	Severe Thunderstorm Warning	GLD	47 min
Jun 24, 3:30 AM MDT	Red Flag Warning	GLD	17 hr
Jun 27, 10:55 AM MDT	Red Flag Warning	GLD	4 hr
Jun 28, 1:54 PM MDT	Mesoscale Discussion	SPC	3 hr
Jun 28, 5:36 PM MDT	Special Weather Statement	GLD	24 min
Jun 29, 3:53 PM MDT	Special Weather Statement	GLD	17 min
Jun 29, 4:11 PM MDT	Severe Thunderstorm Warning	GLD	49 min
Jul 10, 1:09 PM MDT	Mesoscale Discussion	SPC	66 min
Jul 10, 1:29 PM MDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 10, 5:45 PM MDT	Severe Thunderstorm Warning	GLD	60 min
Jul 10, 6:33 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 21, 8:04 PM MDT	Special Weather Statement	GLD	56 min
Jul 21, 8:59 PM MDT	Special Weather Statement	GLD	31 min
Jul 24, 4:02 PM MDT	Mesoscale Discussion	SPC	118 min
Jul 26, 1:21 PM MDT	Mesoscale Discussion	SPC	114 min
Jul 27, 2:05 PM MDT	Mesoscale Discussion	SPC	115 min
Jul 27, 4:19 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 27, 6:33 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 29, 3:52 PM MDT	Special Weather Statement	GLD	13 min
Jul 29, 4:06 PM MDT	Special Weather Statement	GLD	14 min
Jul 29, 4:18 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 29, 4:40 PM MDT	Special Weather Statement	GLD	15 min
Jul 29, 4:57 PM MDT	Special Weather Statement	GLD	13 min
Jul 29, 5:13 PM MDT	Special Weather Statement	GLD	17 min
Jul 30, 4:34 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 31, 12:59 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 31, 4:56 PM MDT	Mesoscale Discussion	SPC	94 min
Aug 1, 2:32 AM MDT	Special Weather Statement	GLD	13 min
Aug 1, 2:42 AM MDT	Severe Thunderstorm Warning	GLD	48 min
Aug 1, 4:06 PM MDT	Mesoscale Discussion	SPC	54 min
Aug 1, 4:09 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 1, 5:04 PM MDT	Special Weather Statement	GLD	56 min
Aug 3, 3:21 AM MDT	Dense Fog Advisory	GLD	6 hr
Aug 3, 3:26 AM MDT	Flash Flood Watch	GLD	17 hr
Aug 3, 2:35 PM MDT	Tornado Watch	SPC	6 hr
Aug 3, 8:25 PM MDT	Flash Flood Watch	GLD	8 hr
Aug 3, 10:03 PM MDT	Special Weather Statement	GLD	57 min
Aug 5, 1:08 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 6, 1:28 PM MDT	Severe Thunderstorm Warning	GLD	47 min
Aug 6, 2:31 PM MDT	Special Weather Statement	GLD	29 min
Aug 6, 2:38 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 7, 5:10 AM MDT	Flash Flood Watch	GLD	37 hr
Aug 12, 8:59 AM MDT	Dense Fog Advisory	GLD	1 min
Aug 12, 2:35 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 13, 2:05 PM MDT	Mesoscale Discussion	SPC	115 min
Aug 14, 11:25 PM MDT	Special Weather Statement	GLD	65 min
Aug 18, 9:30 PM MDT	Severe Thunderstorm Warning	GLD	45 min
Aug 18, 9:57 PM MDT	Special Weather Statement	GLD	33 min
Aug 31, 6:44 PM MDT	Severe Thunderstorm Warning	GLD	61 min
Aug 31, 7:26 PM MDT	Severe Thunderstorm Warning	GLD	64 min
Aug 31, 7:59 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Sep 8, 3:23 AM MDT	Red Flag Warning	GLD	17 hr
Sep 12, 3:24 PM MDT	Flash Flood Warning	GLD	6 hr
Sep 12, 4:51 PM MDT	Flash Flood Watch	GLD	11 hr
Sep 12, 6:34 PM MDT	Flash Flood Warning	GLD	3 hr
Sep 12, 9:40 PM MDT	Flash Flood Warning	GLD	6 hr
Sep 13, 3:34 AM MDT	Areal Flood Warning	GLD	9 hr
Sep 13, 3:53 PM MDT	Dense Fog Advisory	GLD	5 hr
Sep 23, 1:19 PM MDT	Wind Advisory	GLD	6 hr
Sep 23, 2:09 PM MDT	High Wind Warning	GLD	5 hr
Sep 27, 3:38 AM MDT	Wind Advisory	GLD	20 hr
Oct 2, 2:09 PM MDT	High Wind Watch	GLD	23 hr
Oct 3, 12:57 PM MDT	High Wind Warning	GLD	29 hr
Oct 3, 12:57 PM MDT	Wind Advisory	GLD	39 hr
Oct 3, 2:40 PM MDT	Frost Advisory	GLD	41 hr
Oct 4, 9:30 PM MDT	Wind Advisory	GLD	21 hr
Oct 5, 1:40 PM MDT	Frost Advisory	GLD	18 hr
Oct 6, 3:27 PM MDT	Fire Weather Watch	GLD	21 hr
Oct 7, 12:56 PM MDT	Red Flag Warning	GLD	30 hr
Oct 9, 8:13 PM MDT	Wind Advisory	GLD	25 hr
Oct 10, 2:05 PM MDT	Mesoscale Discussion	SPC	2 hr
Oct 10, 4:41 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Oct 10, 4:50 PM MDT	Severe Thunderstorm Warning	GLD	55 min
Oct 10, 5:54 PM MDT	Severe Thunderstorm Warning	GLD	66 min
Oct 13, 7:40 AM MDT	Wind Advisory	GLD	6 hr
Oct 14, 3:41 AM MDT	Mesoscale Discussion	SPC	2 hr
Oct 14, 3:56 AM MDT	Wind Advisory	GLD	16 hr
Oct 14, 8:45 AM MDT	Special Weather Statement	GLD	30 min
Oct 14, 2:26 PM MDT	Frost Advisory	GLD	19 hr
Oct 15, 9:13 AM MDT	Freeze Warning	GLD	24 hr
Nov 1, 3:41 AM MDT	Wind Advisory	GLD	14 hr
Nov 2, 1:14 PM MDT	Fire Weather Watch	GLD	16 hr
Nov 3, 4:06 AM MST	Red Flag Warning	GLD	13 hr
Nov 14, 12:50 PM MST	Fire Weather Watch	GLD	13 hr
Nov 16, 2:07 AM MST	Fire Weather Watch	GLD	11 hr
Nov 16, 1:33 PM MST	Red Flag Warning	GLD	27 hr
Nov 20, 1:10 PM MST	Winter Weather Advisory	GLD	28 hr
Nov 24, 8:57 AM MST	Wind Advisory	GLD	7 hr
Dec 4, 1:38 PM MST	Wind Chill Advisory	GLD	21 hr
Dec 5, 2:40 PM MST	Wind Chill Advisory	GLD	17 hr
Dec 6, 2:30 AM MST	Wind Chill Advisory	GLD	33 hr
Dec 8, 1:52 PM MST	Wind Chill Advisory	GLD	19 hr
Dec 24, 3:24 AM MST	Wind Advisory	GLD	14 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	31
Tornado Warning	4
Severe Thunderstorm Watch	18
Tornado Watch	3
Mesoscale Discussion	44
Special Weather Statement	31
Flooding
Areal Flood Warning	1
Flash Flood Warning	3
Flash Flood Watch	4
Winter
Blizzard Warning	1
Winter Storm Warning	1
Winter Storm Watch	3
Freezing Rain Advisory	1
Winter Weather Advisory	7
Cold
Freeze Warning	1
Frost Advisory	3
Wind Chill Advisory	4
Wind and dust
High Wind Warning	4
High Wind Watch	3
Blowing Dust Advisory	1
Wind Advisory	19
Fire
Red Flag Warning	16
Fire Weather Watch	13
Fog and smoke
Dense Fog Advisory	4

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.