Alert archive / Nebraska / Box Butte County

Weather alerts in Box Butte County, Nebraska, 2026

228 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Box Butte County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts: 228
Warnings: 88
Watches: 48
Advisories: 13
Busiest month: June58 alerts
Busiest day: September 5, 202614 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Box Butte County in 2026 had a tornado report inside them.

Box Butte County, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	45	18	60%	14	71%	25 min
Flash flood warnings	6	3	50%	8	100%	38 min

Each office's whole area, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Cheyenne, WY: tornado warnings	18	5	72%	10	70%	12 min
NWS Cheyenne, WY: severe thunderstorm warnings	350	140	60%	293	76%	22 min
NWS Cheyenne, WY: flash flood warnings	28	12	57%	35	86%	38 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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 14, 1:59 AM MST	High Wind Watch	CYS	24 hr
Jan 15, 1:49 AM MST	High Wind Warning	CYS	58 hr
Jan 16, 1:17 PM MST	Cold Weather Advisory	CYS	21 hr
Jan 16, 1:24 PM MST	Red Flag Warning	CYS	28 hr
Jan 17, 2:22 AM MST	High Wind Watch	CYS	11 hr
Jan 17, 1:41 PM MST	High Wind Warning	CYS	27 hr
Jan 22, 1:36 AM MST	Cold Weather Advisory	CYS	58 hr
Jan 22, 2:06 PM MST	Winter Weather Advisory	CYS	39 hr
Jan 24, 1:05 PM MST	Cold Weather Advisory	CYS	40 hr
Jan 25, 8:46 PM MST	Extreme Cold Warning	CYS	11 hr
Feb 6, 12:18 PM MST	Red Flag Warning	CYS	3 days
Feb 13, 11:49 AM MST	Fire Weather Watch	CYS	24 hr
Feb 14, 12:00 PM MST	Red Flag Warning	CYS	29 hr
Feb 15, 12:27 AM MST	High Wind Watch	CYS	45 hr
Feb 16, 12:35 AM MST	Fire Weather Watch	CYS	12 hr
Feb 16, 12:51 AM MST	High Wind Warning	CYS	46 hr
Feb 16, 11:09 AM MST	Winter Weather Advisory	CYS	3 days
Feb 16, 12:12 PM MST	Red Flag Warning	CYS	30 hr
Feb 25, 12:16 AM MST	Fire Weather Watch	CYS	12 hr
Feb 25, 12:31 PM MST	Red Flag Warning	CYS	3 days
Mar 4, 1:00 PM MST	Winter Weather Advisory	CYS	57 hr
Mar 7, 9:26 PM MST	Fire Weather Watch	CYS	13 hr
Mar 8, 11:38 AM MDT	Red Flag Warning	CYS	30 hr
Mar 9, 2:02 PM MDT	High Wind Watch	CYS	45 hr
Mar 11, 10:39 AM MDT	High Wind Warning	CYS	4 days
Mar 11, 1:09 PM MDT	Red Flag Warning	CYS	3 days
Mar 12, 12:35 PM MDT	Blowing Dust Advisory	CYS	7 hr
Mar 13, 1:48 PM MDT	High Wind Watch	CYS	24 hr
Mar 16, 12:49 AM MDT	Fire Weather Watch	CYS	35 hr
Mar 17, 11:29 AM MDT	Red Flag Warning	CYS	4 days
Mar 23, 12:06 PM MDT	Fire Weather Watch	CYS	13 hr
Mar 24, 1:21 AM MDT	Red Flag Warning	CYS	45 hr
Mar 27, 1:15 AM MDT	Fire Weather Watch	CYS	11 hr
Mar 27, 12:27 PM MDT	Red Flag Warning	CYS	3 days
Apr 10, 12:46 PM MDT	Fire Weather Watch	CYS	22 hr
Apr 11, 11:01 AM MDT	Red Flag Warning	CYS	57 hr
Apr 14, 12:46 PM MDT	Fire Weather Watch	CYS	22 hr
Apr 15, 10:19 AM MDT	Red Flag Warning	CYS	34 hr
Apr 17, 12:48 PM MDT	Fire Weather Watch	CYS	25 hr
Apr 17, 12:48 PM MDT	Red Flag Warning	CYS	31 hr
Apr 18, 2:12 PM MDT	Red Flag Warning	CYS	54 hr
Apr 20, 1:03 PM MDT	Red Flag Warning	CYS	55 hr
Apr 21, 12:20 AM MDT	High Wind Watch	CYS	50 hr
Apr 22, 1:44 PM MDT	Red Flag Warning	CYS	30 hr
Apr 22, 1:51 PM MDT	Mesoscale Discussion	SPC	114 min
May 2, 2:09 PM MDT	Red Flag Warning	CYS	6 hr
May 3, 4:53 PM MDT	Severe Thunderstorm Warning	CYS	37 min
May 12, 12:12 PM MDT	Fire Weather Watch	CYS	13 hr
May 13, 12:50 AM MDT	Red Flag Warning	CYS	65 hr
May 17, 12:22 PM MDT	Freeze Watch	CYS	25 hr
May 18, 1:15 AM MDT	Freeze Warning	CYS	35 hr
May 19, 6:00 PM MDT	Severe Thunderstorm Watch	SPC	38 days
May 29, 9:38 PM MDT	Special Weather Statement	CYS	52 min
May 30, 1:14 PM MDT	Mesoscale Discussion	SPC	2 hr
May 30, 2:13 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 30, 5:20 PM MDT	Mesoscale Discussion	SPC	85 min
May 30, 7:07 PM MDT	Special Weather Statement	CYS	38 min
May 30, 7:48 PM MDT	Mesoscale Discussion	SPC	87 min
Jun 1, 11:51 AM MDT	Mesoscale Discussion	SPC	2 hr
Jun 1, 12:52 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 1, 3:38 PM MDT	Mesoscale Discussion	SPC	67 min
Jun 1, 4:07 PM MDT	Severe Thunderstorm Warning	CYS	53 min
Jun 1, 4:41 PM MDT	Tornado Warning	CYS	34 min
Jun 1, 4:55 PM MDT	Severe Thunderstorm Warning	CYS	65 min
Jun 1, 5:34 PM MDT	Severe Thunderstorm Warning	CYS	71 min
Jun 1, 6:23 PM MDT	Mesoscale Discussion	SPC	97 min
Jun 2, 12:44 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 1:40 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 4, 1:32 PM MDT	Mesoscale Discussion	SPC	88 min
Jun 5, 12:15 AM MDT	Fire Weather Watch	CYS	24 hr
Jun 5, 11:47 PM MDT	Red Flag Warning	CYS	21 hr
Jun 7, 12:54 PM MDT	Fire Weather Watch	CYS	21 hr
Jun 7, 6:27 PM MDT	Severe Thunderstorm Warning	CYS	36 min
Jun 8, 10:03 AM MDT	Red Flag Warning	CYS	4 days
Jun 8, 2:55 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 8, 6:44 PM MDT	Severe Thunderstorm Warning	CYS	46 min
Jun 8, 6:58 PM MDT	Flash Flood Warning	CYS	10 hr
Jun 8, 7:29 PM MDT	Severe Thunderstorm Warning	CYS	61 min
Jun 8, 8:27 PM MDT	Severe Thunderstorm Warning	CYS	63 min
Jun 8, 8:31 PM MDT	Flash Flood Warning	CYS	3 hr
Jun 9, 4:58 AM MDT	Areal Flood Warning	CYS	31 hr
Jun 9, 4:30 PM MDT	Special Weather Statement	CYS	45 min
Jun 9, 5:14 PM MDT	Special Weather Statement	CYS	31 min
Jun 9, 5:42 PM MDT	Special Weather Statement	CYS	33 min
Jun 14, 12:37 AM MDT	Fire Weather Watch	CYS	11 hr
Jun 14, 11:24 AM MDT	Red Flag Warning	CYS	34 hr
Jun 14, 12:44 PM MDT	Fire Weather Watch	CYS	32 hr
Jun 15, 8:57 PM MDT	Red Flag Warning	CYS	49 hr
Jun 20, 1:27 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 20, 6:27 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 20, 6:54 PM MDT	Severe Thunderstorm Warning	CYS	38 min
Jun 20, 7:34 PM MDT	Special Weather Statement	CYS	26 min
Jun 22, 12:36 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 22, 2:10 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 6:20 PM MDT	Mesoscale Discussion	SPC	85 min
Jun 22, 6:21 PM MDT	Severe Thunderstorm Warning	CYS	54 min
Jun 22, 10:44 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 3:50 PM MDT	Tornado Watch	SPC	8 hr
Jun 26, 5:52 PM MDT	Mesoscale Discussion	SPC	113 min
Jun 26, 6:02 PM MDT	Special Weather Statement	CYS	43 min
Jun 26, 6:14 PM MDT	Severe Thunderstorm Warning	CYS	31 min
Jun 26, 6:46 PM MDT	Special Weather Statement	CYS	44 min
Jun 26, 8:38 PM MDT	Special Weather Statement	CYS	37 min
Jun 27, 3:14 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 27, 5:43 PM MDT	Severe Thunderstorm Warning	CYS	47 min
Jun 27, 6:10 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 27, 6:26 PM MDT	Severe Thunderstorm Warning	CYS	34 min
Jun 27, 7:05 PM MDT	Special Weather Statement	CYS	25 min
Jun 27, 7:16 PM MDT	Severe Thunderstorm Warning	CYS	14 min
Jun 27, 7:27 PM MDT	Areal Flood Advisory	CYS	2 hr
Jun 27, 7:42 PM MDT	Special Weather Statement	CYS	18 min
Jun 28, 12:43 PM MDT	Fire Weather Watch	CYS	25 hr
Jun 28, 6:44 PM MDT	Mesoscale Discussion	SPC	3 hr
Jun 28, 11:20 PM MDT	Severe Thunderstorm Warning	CYS	40 min
Jun 29, 3:22 AM MDT	Red Flag Warning	CYS	18 hr
Jun 30, 12:07 AM MDT	Red Flag Warning	CYS	19 hr
Jul 3, 3:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 3, 5:01 PM MDT	Severe Thunderstorm Warning	CYS	29 min
Jul 6, 3:02 PM MDT	Special Weather Statement	CYS	28 min
Jul 6, 4:08 PM MDT	Special Weather Statement	CYS	37 min
Jul 6, 4:46 PM MDT	Special Weather Statement	CYS	29 min
Jul 6, 5:12 PM MDT	Special Weather Statement	CYS	48 min
Jul 7, 3:13 PM MDT	Special Weather Statement	CYS	32 min
Jul 7, 3:31 PM MDT	Special Weather Statement	CYS	29 min
Jul 7, 3:56 PM MDT	Special Weather Statement	CYS	34 min
Jul 8, 1:03 PM MDT	Mesoscale Discussion	SPC	117 min
Jul 8, 1:27 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 9, 1:39 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 9, 3:40 PM MDT	Severe Thunderstorm Warning	CYS	50 min
Jul 9, 3:42 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 9, 4:21 PM MDT	Severe Thunderstorm Warning	CYS	39 min
Jul 9, 4:31 PM MDT	Flash Flood Warning	CYS	3 hr
Jul 9, 4:59 PM MDT	Severe Thunderstorm Warning	CYS	61 min
Jul 9, 5:27 PM MDT	Special Weather Statement	CYS	33 min
Jul 9, 5:34 PM MDT	Flash Flood Warning	CYS	3 hr
Jul 9, 5:59 PM MDT	Severe Thunderstorm Warning	CYS	46 min
Jul 9, 6:01 PM MDT	Special Weather Statement	CYS	29 min
Jul 10, 2:30 AM MDT	Heat Advisory	CYS	6 days
Jul 11, 1:33 AM MDT	Red Flag Warning	CYS	5 days
Jul 17, 12:12 PM MDT	Heat Advisory	CYS	3 days
Jul 19, 2:30 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 22, 7:44 AM MDT	Flood Watch	CYS	40 hr
Jul 24, 1:05 AM MDT	Heat Advisory	CYS	68 hr
Jul 28, 1:07 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 28, 1:23 PM MDT	Special Weather Statement	CYS	37 min
Jul 28, 1:47 PM MDT	Severe Thunderstorm Warning	CYS	43 min
Jul 28, 2:15 PM MDT	Special Weather Statement	CYS	30 min
Jul 28, 2:36 PM MDT	Severe Thunderstorm Warning	CYS	39 min
Jul 28, 2:41 PM MDT	Special Weather Statement	CYS	34 min
Jul 30, 2:58 PM MDT	Special Weather Statement	CYS	32 min
Jul 31, 12:58 PM MDT	Heat Advisory	CYS	56 hr
Aug 1, 12:04 PM MDT	Red Flag Warning	CYS	57 hr
Aug 2, 11:51 AM MDT	Red Flag Warning	CYS	33 hr
Aug 8, 4:59 PM MDT	Severe Thunderstorm Warning	CYS	36 min
Aug 8, 5:25 PM MDT	Special Weather Statement	CYS	35 min
Aug 9, 4:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 9, 5:24 PM MDT	Severe Thunderstorm Warning	CYS	51 min
Aug 9, 5:54 PM MDT	Special Weather Statement	CYS	36 min
Aug 9, 5:57 PM MDT	Special Weather Statement	CYS	33 min
Aug 9, 6:05 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 9, 6:30 PM MDT	Special Weather Statement	CYS	30 min
Aug 9, 7:14 PM MDT	Severe Thunderstorm Warning	CYS	61 min
Aug 10, 3:44 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 11, 3:42 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 1:33 PM MDT	Mesoscale Discussion	SPC	117 min
Aug 12, 2:32 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 12, 6:06 PM MDT	Mesoscale Discussion	SPC	114 min
Aug 13, 2:42 AM MDT	Flood Watch	CYS	19 hr
Aug 15, 1:12 AM MDT	Flood Watch	CYS	21 hr
Aug 15, 1:28 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 2:04 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 15, 4:07 PM MDT	Special Weather Statement	CYS	23 min
Aug 15, 4:18 PM MDT	Severe Thunderstorm Warning	CYS	42 min
Aug 15, 4:55 PM MDT	Special Weather Statement	CYS	35 min
Aug 15, 5:08 PM MDT	Severe Thunderstorm Warning	CYS	36 min
Aug 15, 5:08 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 16, 2:06 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 17, 3:46 PM MDT	Special Weather Statement	CYS	44 min
Aug 17, 4:26 PM MDT	Special Weather Statement	CYS	34 min
Aug 17, 4:29 PM MDT	Mesoscale Discussion	SPC	61 min
Aug 17, 4:34 PM MDT	Severe Thunderstorm Warning	CYS	41 min
Aug 17, 4:40 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 21, 3:38 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 21, 4:48 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 21, 5:06 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	54 min
Aug 21, 5:23 PM MDT	Severe Thunderstorm Warning	CYS	52 min
Aug 21, 5:55 PM MDT	Severe Thunderstorm Warning	CYS	46 min
Aug 21, 6:15 PM MDT	Special Weather Statement	CYS	45 min
Aug 21, 6:33 PM MDT	Severe Thunderstorm Warning	CYS	42 min
Aug 21, 8:26 PM MDT	Severe Thunderstorm Warning	CYS	49 min
Aug 23, 1:24 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 23, 2:40 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 23, 3:01 PM MDT	Severe Thunderstorm Warning	CYS	41 min
Aug 23, 3:39 PM MDT	Special Weather Statement	CYS	36 min
Aug 24, 11:10 PM MDT	Special Weather Statement	CYS	50 min
Aug 25, 2:53 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 25, 6:04 PM MDT	Severe Thunderstorm Warning	CYS	41 min
Aug 25, 6:58 PM MDT	Special Weather Statement	CYS	32 min
Aug 25, 7:27 PM MDT	Special Weather Statement	CYS	33 min
Aug 25, 7:52 PM MDT	Severe Thunderstorm Warning	CYS	38 min
Aug 27, 2:12 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 27, 4:33 PM MDT	Mesoscale Discussion	SPC	57 min
Aug 27, 4:57 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	48 min
Aug 27, 5:26 PM MDT	Severe Thunderstorm Warning	CYS	49 min
Aug 29, 1:26 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 29, 5:08 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 2, 11:11 PM MDT	Special Weather Statement	CYS	64 min
Sep 5, 2:34 PM MDT	Mesoscale Discussion	SPC	116 min
Sep 5, 3:00 PM MDT	Special Weather Statement	CYS	30 min
Sep 5, 3:09 PM MDT	Severe Thunderstorm Warning	CYS	36 min
Sep 5, 3:13 PM MDT	Special Weather Statement	CYS	32 min
Sep 5, 3:22 PM MDT	Severe Thunderstorm Warning	CYS	23 min
Sep 5, 3:44 PM MDT	Flash Flood Warning	CYS	3 hr
Sep 5, 3:44 PM MDT	Severe Thunderstorm Warning	CYS	46 min
Sep 5, 3:47 PM MDT	Special Weather Statement	CYS	28 min
Sep 5, 4:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	38 min
Sep 5, 4:30 PM MDT	Areal Flood Advisory	CYS	37 min
Sep 5, 4:57 PM MDT	Severe Thunderstorm Warning	CYS	33 min
Sep 5, 5:01 PM MDT	Severe Thunderstorm Watch	SPC	4 hr
Sep 5, 5:07 PM MDT	Flash Flood Warning	CYS	3 hr
Sep 5, 5:30 PM MDT	Severe Thunderstorm Warning	CYS	30 min
Sep 7, 12:29 AM MDT	Severe Thunderstorm Warning	CYS	31 min
Sep 10, 12:12 PM MDT	Red Flag Warning	CYS	31 hr
Sep 13, 12:57 PM MDT	Red Flag Warning	CYS	31 hr
Sep 18, 9:04 PM MDT	Special Weather Statement	CYS	41 min
Sep 19, 4:16 PM MDT	Special Weather Statement	CYS	44 min
Sep 19, 4:58 PM MDT	Special Weather Statement	CYS	47 min
Sep 20, 4:03 PM MDT	Special Weather Statement	CYS	42 min

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	45
Tornado Warning	1
Severe Thunderstorm Watch	21
Tornado Watch	1
Mesoscale Discussion	34
Special Weather Statement	45
Flooding
Areal Flood Warning	1
Flash Flood Warning	6
Flood Watch	3
Areal Flood Advisory	2
Winter
Winter Weather Advisory	3
Heat
Heat Advisory	4
Cold
Extreme Cold Warning	1
Freeze Warning	1
Freeze Watch	1
Cold Weather Advisory	3
Wind and dust
High Wind Warning	4
High Wind Watch	6
Blowing Dust Advisory	1
Fire
Red Flag Warning	29
Fire Weather Watch	16

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2025

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.