Alert archive / Nebraska / Cheyenne County

Weather alerts in Cheyenne County, Nebraska, 2025

211 weather alerts in 2025, 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 2025. Tap one for its archive.

Alerts: 211
Warnings: 60
Watches: 37
Advisories: 17
Busiest month: June54 alerts
Busiest day: July 7, 202511 alerts

Over time

By month

Warning verification

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

3 of 5 tornado warnings covering Cheyenne County in 2025 had a tornado report inside them; 3 of 4 tornado reports fell inside a warning, on average 11 minutes after it went out.

Cheyenne County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	3	40%	4	75%	11 min
Severe thunderstorm warnings	37	21	43%	22	73%	25 min
Flash flood warnings	0			0

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Cheyenne, WY: tornado warnings	14	5	64%	11	45%	9 min
NWS Cheyenne, WY: severe thunderstorm warnings	315	138	56%	270	81%	22 min
NWS Cheyenne, WY: flash flood warnings	5	4	20%	8	100%	12 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, 1:20 PM MST	Winter Weather Advisory	CYS	46 hr
Jan 3, 1:56 PM MST	Dense Fog Advisory	CYS	21 hr
Jan 7, 1:18 PM MST	Winter Weather Advisory	CYS	52 hr
Jan 17, 12:25 PM MST	Cold Weather Advisory	CYS	59 hr
Jan 19, 1:59 AM MST	Extreme Cold Warning	CYS	54 hr
Jan 19, 12:49 PM MST	Cold Weather Advisory	CYS	43 hr
Feb 11, 2:29 AM MST	Winter Weather Advisory	CYS	31 hr
Feb 12, 2:31 AM MST	Cold Weather Advisory	CYS	29 hr
Feb 15, 1:26 PM MST	Winter Weather Advisory	CYS	4 days
Feb 16, 2:23 PM MST	Extreme Cold Watch	CYS	13 hr
Feb 17, 3:10 AM MST	Extreme Cold Warning	CYS	3 days
Feb 21, 1:45 PM MST	High Wind Warning	CYS	4 days
Feb 22, 12:54 PM MST	High Wind Watch	CYS	3 days
Mar 2, 2:39 AM MST	Winter Storm Watch	CYS	32 hr
Mar 3, 2:18 AM MST	High Wind Watch	CYS	9 hr
Mar 3, 11:05 AM MST	Blizzard Warning	CYS	17 hr
Mar 3, 11:05 AM MST	Winter Weather Advisory	CYS	26 hr
Mar 3, 11:12 AM MST	High Wind Warning	CYS	30 hr
Mar 9, 1:54 PM MDT	Red Flag Warning	CYS	29 hr
Mar 13, 3:14 AM MDT	High Wind Watch	CYS	42 hr
Mar 13, 4:53 AM MDT	Fire Weather Watch	CYS	6 hr
Mar 13, 3:12 PM MDT	High Wind Warning	CYS	32 hr
Mar 15, 1:07 PM MDT	Fire Weather Watch	CYS	13 hr
Mar 16, 2:33 AM MDT	Red Flag Warning	CYS	16 hr
Mar 16, 8:43 PM MDT	Fire Weather Watch	CYS	5 hr
Mar 17, 1:34 AM MDT	Red Flag Warning	CYS	16 hr
Mar 17, 2:11 PM MDT	Winter Weather Advisory	CYS	40 hr
Mar 31, 7:43 PM MDT	Severe Thunderstorm Warning	CYS	32 min
Mar 31, 8:12 PM MDT	Severe Thunderstorm Warning	CYS	33 min
Mar 31, 8:43 PM MDT	Special Weather Statement	CYS	32 min
Apr 7, 1:32 PM MDT	Fire Weather Watch	CYS	18 hr
Apr 8, 7:18 AM MDT	Red Flag Warning	CYS	12 hr
Apr 8, 1:21 PM MDT	Fire Weather Watch	CYS	11 hr
Apr 9, 12:44 AM MDT	Red Flag Warning	CYS	18 hr
Apr 25, 8:35 PM MDT	Dense Fog Advisory	CYS	13 hr
Apr 27, 2:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 27, 3:56 PM MDT	Tornado Watch	SPC	9 hr
Apr 28, 2:04 PM MDT	Special Weather Statement	CYS	26 min
May 14, 3:56 PM MDT	Mesoscale Discussion	SPC	94 min
May 14, 4:33 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
May 14, 5:45 PM MDT	Special Weather Statement	CYS	45 min
May 14, 5:47 PM MDT	Severe Thunderstorm Warning	CYS	28 min
May 14, 5:54 PM MDT	Severe Thunderstorm Warning	CYS	36 min
May 14, 6:42 PM MDT	Mesoscale Discussion	SPC	93 min
May 18, 1:12 PM MDT	Mesoscale Discussion	SPC	3 hr
May 18, 1:57 PM MDT	Tornado Watch	SPC	6 hr
May 18, 3:46 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	44 min
May 18, 4:14 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	46 min
May 18, 4:14 PM MDT	Mesoscale Discussion	SPC	2 hr
May 18, 4:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	49 min
May 18, 4:50 PM MDT	Tornado Warning	CYS	25 min
May 18, 4:55 PM MDT	Severe Thunderstorm Warning	CYS	50 min
May 18, 5:36 PM MDT	Severe Thunderstorm Warning	CYS	24 min
May 22, 11:14 PM MDT	Special Weather Statement	CYS	46 min
May 22, 11:58 PM MDT	Special Weather Statement	CYS	47 min
May 23, 12:16 AM MDT	Special Weather Statement	CYS	29 min
May 23, 12:45 AM MDT	Special Weather Statement	CYS	45 min
May 23, 12:53 PM MDT	Mesoscale Discussion	SPC	3 hr
May 23, 2:59 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
May 23, 4:09 PM MDT	Mesoscale Discussion	SPC	2 hr
May 23, 9:11 PM MDT	Mesoscale Discussion	SPC	2 hr
May 24, 6:38 AM MDT	Special Weather Statement	CYS	52 min
May 29, 5:21 AM MDT	Dense Fog Advisory	CYS	4 hr
Jun 2, 1:14 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 2:12 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 2, 4:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 8:18 PM MDT	Special Weather Statement	CYS	42 min
Jun 2, 8:58 PM MDT	Special Weather Statement	CYS	47 min
Jun 12, 2:04 PM MDT	Mesoscale Discussion	SPC	116 min
Jun 12, 2:53 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 12, 5:08 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 12, 6:32 PM MDT	Severe Thunderstorm Warning	CYS	43 min
Jun 13, 12:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 13, 1:56 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 13, 5:51 PM MDT	Severe Thunderstorm Warning	CYS	54 min
Jun 13, 6:31 PM MDT	Tornado Warning	CYS	29 min
Jun 13, 6:40 PM MDT	Severe Thunderstorm Warning	CYS	65 min
Jun 13, 7:02 PM MDT	Mesoscale Discussion	SPC	58 min
Jun 13, 7:10 PM MDT	Tornado Warning	CYS	35 min
Jun 13, 7:16 PM MDT	Tornado Warning	CYS	29 min
Jun 13, 7:38 PM MDT	Severe Thunderstorm Warning	CYS	67 min
Jun 13, 8:42 PM MDT	Severe Thunderstorm Warning	CYS	28 min
Jun 14, 12:57 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 14, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 14, 5:36 PM MDT	Severe Thunderstorm Warning	CYS	54 min
Jun 15, 2:49 PM MDT	Mesoscale Discussion	SPC	116 min
Jun 15, 4:47 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 15, 5:55 PM MDT	Severe Thunderstorm Warning	CYS	50 min
Jun 15, 6:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	56 min
Jun 15, 6:24 PM MDT	Severe Thunderstorm Warning	CYS	66 min
Jun 15, 6:46 PM MDT	Severe Thunderstorm Warning	CYS	59 min
Jun 15, 6:54 PM MDT	Mesoscale Discussion	SPC	96 min
Jun 17, 12:57 AM MDT	Severe Thunderstorm Warning	CYS	33 min
Jun 17, 1:46 AM MDT	Mesoscale Discussion	SPC	119 min
Jun 17, 2:10 AM MDT	Severe Thunderstorm Warning	CYS	50 min
Jun 17, 3:12 AM MDT	Severe Thunderstorm Warning	CYS	48 min
Jun 17, 10:48 AM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 17, 2:25 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 17, 3:30 PM MDT	Special Weather Statement	CYS	30 min
Jun 17, 4:01 PM MDT	Special Weather Statement	CYS	29 min
Jun 22, 2:17 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 22, 4:26 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 9:45 PM MDT	Special Weather Statement	CYS	45 min
Jun 22, 10:29 PM MDT	Special Weather Statement	CYS	46 min
Jun 24, 4:05 PM MDT	Mesoscale Discussion	SPC	115 min
Jun 24, 5:44 PM MDT	Special Weather Statement	CYS	46 min
Jun 24, 6:27 PM MDT	Special Weather Statement	CYS	48 min
Jun 24, 7:15 PM MDT	Special Weather Statement	CYS	45 min
Jun 25, 3:42 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 25, 6:01 PM MDT	Special Weather Statement	CYS	29 min
Jun 28, 3:41 PM MDT	Special Weather Statement	CYS	49 min
Jun 28, 4:23 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	37 min
Jun 29, 12:28 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 29, 1:45 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 29, 5:09 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 29, 9:10 PM MDT	Mesoscale Discussion	SPC	65 min
Jun 29, 10:40 PM MDT	Special Weather Statement	CYS	50 min
Jul 1, 3:43 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 1, 4:03 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 1, 5:29 PM MDT	Special Weather Statement	CYS	46 min
Jul 1, 6:43 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 4, 2:14 AM MDT	Special Weather Statement	CYS	31 min
Jul 4, 4:49 PM MDT	Mesoscale Discussion	SPC	86 min
Jul 4, 8:09 PM MDT	Special Weather Statement	CYS	51 min
Jul 4, 8:31 PM MDT	Severe Thunderstorm Warning	CYS	29 min
Jul 6, 12:38 PM MDT	Mesoscale Discussion	SPC	3 hr
Jul 6, 1:17 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 6, 4:45 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	45 min
Jul 6, 5:03 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 6, 5:43 PM MDT	Severe Thunderstorm Warning	CYS	47 min
Jul 6, 6:12 PM MDT	Tornado Warning Tornado observed	CYS	23 min
Jul 6, 6:23 PM MDT	Severe Thunderstorm Warning	CYS	37 min
Jul 6, 6:57 PM MDT	Severe Thunderstorm Warning	CYS	18 min
Jul 7, 1:23 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 7, 1:49 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 7, 3:52 PM MDT	Special Weather Statement	CYS	23 min
Jul 7, 3:59 PM MDT	Severe Thunderstorm Warning	CYS	46 min
Jul 7, 4:17 PM MDT	Severe Thunderstorm Warning	CYS	43 min
Jul 7, 4:28 PM MDT	Mesoscale Discussion	SPC	92 min
Jul 7, 4:48 PM MDT	Severe Thunderstorm Warning	CYS	27 min
Jul 7, 4:58 PM MDT	Special Weather Statement	CYS	32 min
Jul 8, 4:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 11, 2:36 PM MDT	Mesoscale Discussion	SPC	114 min
Jul 11, 4:17 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 11, 6:33 PM MDT	Special Weather Statement	CYS	27 min
Jul 11, 6:47 PM MDT	Severe Thunderstorm Warning	CYS	43 min
Jul 11, 7:02 PM MDT	Special Weather Statement	CYS	43 min
Jul 11, 7:32 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 14, 7:07 PM MDT	Special Weather Statement	CYS	38 min
Jul 14, 8:00 PM MDT	Severe Thunderstorm Warning	CYS	31 min
Jul 22, 6:23 PM MDT	Special Weather Statement	CYS	37 min
Jul 22, 6:57 PM MDT	Special Weather Statement	CYS	33 min
Jul 24, 6:52 PM MDT	Severe Thunderstorm Warning	CYS	53 min
Jul 24, 7:33 PM MDT	Special Weather Statement	CYS	57 min
Jul 24, 8:30 PM MDT	Special Weather Statement	CYS	60 min
Jul 25, 4:09 PM MDT	Mesoscale Discussion	SPC	96 min
Jul 26, 2:48 PM MDT	Mesoscale Discussion	SPC	57 min
Jul 31, 5:32 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 31, 6:47 PM MDT	Special Weather Statement	CYS	43 min
Aug 1, 1:51 PM MDT	Mesoscale Discussion	SPC	114 min
Aug 1, 2:46 PM MDT	Tornado Watch	SPC	7 hr
Aug 1, 4:58 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 1, 6:55 PM MDT	Special Weather Statement	CYS	35 min
Aug 1, 7:23 PM MDT	Severe Thunderstorm Warning	CYS	52 min
Aug 2, 1:36 PM MDT	Mesoscale Discussion	SPC	114 min
Aug 2, 3:01 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 4, 2:07 PM MDT	Mesoscale Discussion	SPC	113 min
Aug 4, 3:03 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 4, 6:46 PM MDT	Mesoscale Discussion	SPC	119 min
Aug 5, 2:06 AM MDT	Special Weather Statement	CYS	24 min
Aug 5, 3:19 AM MDT	Special Weather Statement	CYS	41 min
Aug 5, 3:30 AM MDT	Severe Thunderstorm Warning	CYS	22 min
Aug 7, 1:35 AM MDT	Fire Weather Watch	CYS	12 hr
Aug 9, 2:41 PM MDT	Special Weather Statement	CYS	49 min
Aug 10, 6:35 PM MDT	Special Weather Statement	CYS	55 min
Aug 10, 7:23 PM MDT	Special Weather Statement	CYS	67 min
Aug 14, 5:30 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 7:53 PM MDT	Special Weather Statement	CYS	37 min
Aug 14, 8:21 PM MDT	Special Weather Statement	CYS	39 min
Aug 15, 2:49 PM MDT	Mesoscale Discussion	SPC	116 min
Aug 15, 8:36 PM MDT	Special Weather Statement	CYS	24 min
Aug 18, 2:20 PM MDT	Mesoscale Discussion	SPC	115 min
Aug 18, 4:25 PM MDT	Severe Thunderstorm Watch	SPC	4 hr
Aug 23, 9:48 PM MDT	Special Weather Statement	CYS	27 min
Aug 27, 2:13 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 9, 4:49 PM MDT	Mesoscale Discussion	SPC	86 min
Sep 10, 6:10 PM MDT	Mesoscale Discussion	SPC	95 min
Sep 11, 2:47 PM MDT	Mesoscale Discussion	SPC	118 min
Sep 16, 2:05 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 16, 4:31 PM MDT	Mesoscale Discussion	SPC	89 min
Sep 16, 6:49 PM MDT	Special Weather Statement	CYS	26 min
Oct 4, 2:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Oct 4, 5:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	49 min
Oct 9, 3:56 AM MDT	Dense Fog Advisory	CYS	6 hr
Oct 12, 3:03 AM MDT	Frost Advisory	CYS	30 hr
Oct 14, 9:02 PM MDT	Dense Fog Advisory	CYS	15 hr
Oct 15, 4:56 PM MDT	Mesoscale Discussion	SPC	2 hr
Oct 17, 12:53 PM MDT	Freeze Watch	CYS	13 hr
Oct 18, 1:47 AM MDT	Freeze Warning	CYS	29 hr
Nov 3, 6:23 AM MST	Fire Weather Watch	CYS	6 hr
Nov 4, 9:27 AM MST	Red Flag Warning	CYS	8 hr
Nov 13, 12:56 PM MST	Red Flag Warning	CYS	28 hr
Nov 21, 1:58 AM MST	Dense Fog Advisory	CYS	8 hr
Dec 7, 2:38 PM MST	High Wind Watch	CYS	4 days
Dec 8, 2:53 AM MST	High Wind Warning	CYS	45 hr
Dec 12, 5:25 PM MST	Dense Fog Advisory	CYS	12 hr
Dec 16, 2:50 PM MST	High Wind Watch	CYS	11 hr
Dec 16, 2:50 PM MST	High Wind Warning	CYS	43 hr
Dec 18, 3:04 AM MST	Fire Weather Watch	CYS	8 hr
Dec 18, 3:04 AM MST	Red Flag Warning	CYS	14 hr
Dec 18, 10:48 AM MST	Red Flag 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
Severe Thunderstorm Warning	37
Tornado Warning	5
Severe Thunderstorm Watch	18
Tornado Watch	3
Mesoscale Discussion	53
Special Weather Statement	44
Winter
Blizzard Warning	1
Winter Storm Watch	1
Winter Weather Advisory	6
Cold
Extreme Cold Warning	2
Freeze Warning	1
Extreme Cold Watch	1
Freeze Watch	1
Cold Weather Advisory	3
Frost Advisory	1
Wind and dust
High Wind Warning	5
High Wind Watch	5
Fire
Red Flag Warning	9
Fire Weather Watch	8
Fog and smoke
Dense Fog Advisory	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2024 2026

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.