Weather alerts in Sioux County, Nebraska, 2026

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

Sioux County and its neighbors

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

Alerts: 214
Warnings: 89
Watches: 45
Advisories: 15
Busiest month: June64 alerts
Busiest day: August 26, 202611 alerts

Over time

By month

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 17, 2:05 PM MST	Dust Storm Advisory	CYS	115 min
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 13, 1:48 PM MDT	High Wind Warning	CYS	49 hr
Mar 16, 12:49 AM MDT	Fire Weather Watch	CYS	35 hr
Mar 16, 11:29 AM MDT	Red Flag Warning	CYS	32 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 9, 1:52 PM MDT	Red Flag Warning	CYS	6 hr
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
May 2, 2:09 PM MDT	Red Flag Warning	CYS	6 hr
May 3, 3:57 PM MDT	Special Weather Statement	CYS	33 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 13, 7:41 PM MDT	Special Weather Statement	CYS	34 min
May 13, 8:13 PM MDT	Special Weather Statement	CYS	32 min
May 13, 8:40 PM MDT	Special Weather Statement	CYS	50 min
May 17, 12:22 PM MDT	Freeze Watch	CYS	25 hr
May 18, 1:15 AM MDT	Freeze Warning	CYS	35 hr
May 19, 11:40 AM MDT	Frost Advisory	CYS	20 hr
May 21, 1:50 PM MDT	Special Weather Statement	CYS	40 min
May 21, 3:01 PM MDT	Special Weather Statement	CYS	44 min
May 21, 3:30 PM MDT	Severe Thunderstorm Warning	CYS	45 min
May 29, 6:15 PM MDT	Special Weather Statement	CYS	45 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, 6:03 PM MDT	Special Weather Statement	CYS	27 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, 3:25 PM MDT	Severe Thunderstorm Warning	CYS	50 min
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, 4:29 PM MDT	Tornado Warning	CYS	31 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 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 4, 4:52 PM MDT	Special Weather Statement	CYS	23 min
Jun 4, 5:09 PM MDT	Severe Thunderstorm Warning	CYS	51 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 6, 5:00 PM MDT	Special Weather Statement	CYS	45 min
Jun 6, 8:26 PM MDT	Special Weather Statement	CYS	34 min
Jun 6, 8:44 PM MDT	Special Weather Statement	CYS	46 min
Jun 7, 12:54 PM MDT	Fire Weather Watch	CYS	21 hr
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, 6:58 PM MDT	Severe Thunderstorm Warning	CYS	47 min
Jun 9, 3:52 PM MDT	Special Weather Statement	CYS	23 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, 6:10 PM MDT	Severe Thunderstorm Warning	CYS	50 min
Jun 20, 6:27 PM MDT	Mesoscale Discussion	SPC	93 min
Jun 20, 6:54 PM MDT	Severe Thunderstorm Warning	CYS	38 min
Jun 21, 2:45 PM MDT	Special Weather Statement	CYS	30 min
Jun 22, 11:29 AM MDT	Mesoscale Discussion	SPC	2 hr
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, 2:49 PM MDT	Severe Thunderstorm Warning	CYS	27 min
Jun 22, 4:08 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	52 min
Jun 22, 4:50 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	55 min
Jun 22, 5:22 PM MDT	Severe Thunderstorm Warning	CYS	53 min
Jun 22, 5:23 PM MDT	Severe Thunderstorm Warning	CYS	67 min
Jun 22, 5:27 PM MDT	Tornado Warning	CYS	33 min
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, 6:30 PM MDT	Areal Flood Advisory	CYS	60 min
Jun 22, 10:44 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 12:53 PM MDT	Flash Flood Watch	CYS	33 hr
Jun 24, 3:50 PM MDT	Tornado Watch	SPC	8 hr
Jun 24, 5:34 PM MDT	Severe Thunderstorm Warning	CYS	20 min
Jun 24, 5:59 PM MDT	Special Weather Statement	CYS	31 min
Jun 24, 6:47 PM MDT	Mesoscale Discussion	SPC	58 min
Jun 26, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 26, 7:50 PM MDT	Severe Thunderstorm Warning	CYS	25 min
Jun 26, 8:12 PM MDT	Severe Thunderstorm Warning	CYS	33 min
Jun 27, 3:14 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 27, 5:31 PM MDT	Severe Thunderstorm Warning	CYS	14 min
Jun 28, 12:43 PM MDT	Fire Weather Watch	CYS	25 hr
Jun 28, 10:27 PM MDT	Special Weather Statement	CYS	33 min
Jun 28, 11:02 PM MDT	Special Weather Statement	CYS	43 min
Jun 28, 11:20 PM MDT	Severe Thunderstorm Warning	CYS	40 min
Jun 28, 11:55 PM MDT	Special Weather Statement	CYS	50 min
Jun 29, 12:02 AM MDT	Severe Thunderstorm Warning	CYS	43 min
Jun 29, 3:22 AM MDT	Red Flag Warning	CYS	18 hr
Jun 29, 1:18 PM MDT	Fire Weather Watch	CYS	11 hr
Jun 30, 12:07 AM MDT	Red Flag Warning	CYS	19 hr
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, 3:16 PM MDT	Flash Flood Warning	CYS	3 hr
Jul 9, 3:42 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 10, 2:30 AM MDT	Heat Advisory	CYS	6 days
Jul 10, 2:43 AM MDT	Fire Weather Watch	CYS	40 hr
Jul 11, 1:33 AM MDT	Red Flag Warning	CYS	5 days
Jul 17, 12:12 PM MDT	Heat Advisory	CYS	3 days
Jul 20, 5:31 PM MDT	Severe Thunderstorm Warning	CYS	44 min
Jul 20, 6:45 PM MDT	Severe Thunderstorm Warning	CYS	34 min
Jul 22, 7:44 AM MDT	Flood Watch	CYS	40 hr
Jul 24, 1:05 AM MDT	Heat Advisory	CYS	68 hr
Jul 25, 1:18 AM MDT	Extreme Heat Warning	CYS	44 hr
Jul 28, 7:13 PM MDT	Special Weather Statement	CYS	32 min
Jul 29, 4:40 PM MDT	Special Weather Statement	CYS	35 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, 4:39 PM MDT	Severe Thunderstorm Warning	CYS	36 min
Aug 9, 4:10 PM MDT	Severe Thunderstorm Warning	CYS	50 min
Aug 9, 4:41 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 9, 5:01 PM MDT	Special Weather Statement	CYS	29 min
Aug 9, 5:06 PM MDT	Severe Thunderstorm Warning	CYS	39 min
Aug 9, 5:24 PM MDT	Severe Thunderstorm Warning	CYS	51 min
Aug 10, 3:44 PM MDT	Severe Thunderstorm Watch	SPC	5 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 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, 2:22 PM MDT	Areal Flood Advisory	CYS	113 min
Aug 15, 2:47 PM MDT	Flash Flood Warning	CYS	58 min
Aug 15, 5:08 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 6:38 PM MDT	Special Weather Statement	CYS	37 min
Aug 15, 7:11 PM MDT	Special Weather Statement	CYS	34 min
Aug 16, 2:06 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 16, 4:28 PM MDT	Special Weather Statement	CYS	32 min
Aug 17, 3:08 PM MDT	Special Weather Statement	CYS	37 min
Aug 17, 4:18 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	42 min
Aug 17, 4:29 PM MDT	Mesoscale Discussion	SPC	61 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, 5:23 PM MDT	Severe Thunderstorm Warning	CYS	52 min
Aug 21, 6:58 PM MDT	Severe Thunderstorm Warning	CYS	47 min
Aug 21, 7:41 PM MDT	Severe Thunderstorm Warning	CYS	49 min
Aug 21, 8:26 PM MDT	Severe Thunderstorm Warning	CYS	49 min
Aug 24, 9:23 PM MDT	Severe Thunderstorm Warning	CYS	52 min
Aug 24, 10:01 PM MDT	Special Weather Statement	CYS	44 min
Aug 24, 11:10 PM MDT	Special Weather Statement	CYS	50 min
Aug 25, 4:54 PM MDT	Special Weather Statement	CYS	36 min
Aug 25, 5:41 PM MDT	Special Weather Statement	CYS	34 min
Aug 25, 6:34 PM MDT	Special Weather Statement	CYS	26 min
Aug 25, 6:36 PM MDT	Special Weather Statement	CYS	24 min
Aug 25, 6:57 PM MDT	Severe Thunderstorm Warning	CYS	48 min
Aug 25, 7:37 PM MDT	Special Weather Statement	CYS	38 min
Aug 25, 7:52 PM MDT	Severe Thunderstorm Warning	CYS	38 min
Aug 25, 8:01 PM MDT	Severe Thunderstorm Warning	CYS	44 min
Aug 25, 8:39 PM MDT	Severe Thunderstorm Warning	CYS	51 min
Aug 26, 4:20 PM MDT	Special Weather Statement	CYS	25 min
Aug 26, 4:36 PM MDT	Severe Thunderstorm Warning	CYS	39 min
Aug 26, 4:43 PM MDT	Severe Thunderstorm Warning	CYS	22 min
Aug 26, 5:03 PM MDT	Special Weather Statement	CYS	27 min
Aug 29, 1:26 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 29, 3:38 PM MDT	Special Weather Statement	CYS	37 min
Aug 29, 3:48 PM MDT	Severe Thunderstorm Warning	CYS	42 min
Aug 29, 3:53 PM MDT	Severe Thunderstorm Warning	CYS	52 min
Aug 29, 4:01 PM MDT	Severe Thunderstorm Warning	CYS	44 min
Sep 2, 1:09 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 2, 4:18 PM MDT	Special Weather Statement	CYS	27 min
Sep 6, 5:36 PM MDT	Mesoscale Discussion	SPC	114 min
Sep 6, 11:15 PM MDT	Special Weather Statement	CYS	45 min
Sep 6, 11:59 PM MDT	Special Weather Statement	CYS	46 min
Sep 7, 12:10 AM MDT	Special Weather Statement	CYS	35 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 13, 7:39 PM MDT	Special Weather Statement	CYS	36 min
Sep 18, 7:35 PM MDT	Special Weather Statement	CYS	25 min
Sep 18, 7:42 PM MDT	Severe Thunderstorm Warning	CYS	48 min
Sep 18, 7:56 PM MDT	Severe Thunderstorm Warning	CYS	49 min
Sep 18, 8:22 PM MDT	Severe Thunderstorm Warning	CYS	53 min
Sep 18, 9:12 PM MDT	Flash Flood Warning	CYS	103 min
Sep 22, 8:07 PM MDT	Special Weather Statement	CYS	23 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	44
Tornado Warning	3
Severe Thunderstorm Watch	16
Tornado Watch	1
Mesoscale Discussion	23
Special Weather Statement	42
Flooding
Flash Flood Warning	3
Flash Flood Watch	1
Flood Watch	2
Areal Flood Advisory	2
Winter
Winter Weather Advisory	3
Heat
Extreme Heat Warning	1
Heat Advisory	4
Cold
Extreme Cold Warning	1
Freeze Warning	1
Freeze Watch	1
Cold Weather Advisory	3
Frost Advisory	1
Wind and dust
High Wind Warning	5
High Wind Watch	6
Blowing Dust Advisory	1
Dust Storm Advisory	1
Fire
Red Flag Warning	31
Fire Weather Watch	18

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. Rebuilt daily.