Weather alerts in Rock County, Nebraska, 2023

162 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Rock County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 162
Warnings: 44
Watches: 24
Advisories: 31
Busiest month: July32 alerts
Busiest day: June 24, 202310 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 1 tornado warnings covering Rock County in 2023 had a tornado report inside them.

Rock County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	1	0%	0
Severe thunderstorm warnings	30	16	47%	7	100%	29 min
Flash flood warnings	1	1	0%	0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS North Platte, NE: tornado warnings	18	8	56%	10	80%	20 min
NWS North Platte, NE: severe thunderstorm warnings	360	193	46%	336	88%	21 min
NWS North Platte, NE: flash flood warnings	21	8	62%	17	88%	127 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 2, 5:59 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 3, 12:06 AM CST	Mesoscale Discussion	SPC	6 hr
Jan 3, 6:09 AM CST	Mesoscale Discussion	SPC	6 hr
Jan 12, 2:20 PM CST	Dense Fog Advisory	LBF	20 hr
Jan 16, 1:40 PM CST	Winter Storm Watch	LBF	24 hr
Jan 16, 1:40 PM CST	Winter Storm Warning	LBF	64 hr
Jan 26, 2:16 AM CST	Winter Storm Watch	LBF	24 hr
Jan 27, 2:25 AM CST	Winter Storm Warning	LBF	40 hr
Jan 27, 9:51 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 28, 1:49 AM CST	Wind Chill Advisory	LBF	32 hr
Jan 29, 1:30 PM CST	Wind Chill Advisory	LBF	21 hr
Jan 30, 2:48 AM CST	Wind Chill Advisory	LBF	31 hr
Feb 19, 2:10 PM CST	Winter Storm Watch	LBF	23 hr
Feb 20, 1:30 PM CST	Winter Storm Warning	LBF	61 hr
Feb 22, 10:04 AM CST	Wind Chill Warning	LBF	26 hr
Feb 23, 2:28 AM CST	Winter Weather Advisory	LBF	10 hr
Feb 23, 2:26 PM CST	Wind Chill Warning	LBF	21 hr
Mar 6, 1:03 AM CST	Dense Fog Advisory	LBF	6 hr
Mar 7, 2:05 PM CST	Winter Weather Advisory	LBF	19 hr
Mar 7, 2:05 PM CST	Winter Weather Advisory	LBF	49 hr
Mar 10, 2:39 PM CST	Winter Weather Advisory	LBF	18 hr
Mar 15, 3:22 AM CDT	Winter Weather Advisory	LBF	35 hr
Mar 20, 2:50 PM CDT	Winter Weather Advisory	LBF	25 hr
Mar 22, 3:46 AM CDT	Winter Weather Advisory	LBF	26 hr
Mar 29, 2:41 PM CDT	Winter Storm Watch	LBF	25 hr
Mar 30, 3:22 PM CDT	Winter Weather Advisory	LBF	36 hr
Apr 1, 3:05 PM CDT	Winter Storm Watch	LBF	36 hr
Apr 3, 3:26 AM CDT	Winter Weather Advisory	LBF	43 hr
Apr 6, 2:29 PM CDT	Red Flag Warning	LBF	30 hr
Apr 10, 3:32 AM CDT	Fire Weather Watch	LBF	10 hr
Apr 10, 1:47 PM CDT	Red Flag Warning	LBF	31 hr
Apr 11, 2:33 PM CDT	Red Flag Warning	LBF	29 hr
Apr 12, 2:37 AM CDT	Fire Weather Watch	LBF	12 hr
Apr 12, 3:05 PM CDT	Red Flag Warning	LBF	30 hr
Apr 13, 5:13 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 13, 7:05 PM CDT	Severe Thunderstorm Warning	LBF	40 min
Apr 13, 7:30 PM CDT	Special Weather Statement	LBF	45 min
Apr 19, 12:10 AM CDT	Special Weather Statement	LBF	50 min
May 4, 6:36 PM CDT	Special Weather Statement	LBF	24 min
May 4, 6:58 PM CDT	Special Weather Statement	LBF	47 min
May 4, 7:59 PM CDT	Severe Thunderstorm Warning	LBF	46 min
May 4, 8:07 PM CDT	Special Weather Statement	LBF	38 min
May 6, 5:32 PM CDT	Mesoscale Discussion	SPC	88 min
May 6, 5:45 PM CDT	Severe Thunderstorm Warning	LBF	45 min
May 6, 6:25 PM CDT	Severe Thunderstorm Warning	LBF	61 min
May 6, 8:24 PM CDT	Severe Thunderstorm Warning	LBF	51 min
May 12, 12:17 PM CDT	Mesoscale Discussion	SPC	118 min
May 12, 1:09 PM CDT	Tornado Watch	SPC	8 hr
May 12, 3:23 PM CDT	Mesoscale Discussion	SPC	2 hr
May 29, 2:21 PM CDT	Mesoscale Discussion	SPC	114 min
May 29, 3:14 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 29, 5:25 PM CDT	Special Weather Statement	LBF	50 min
May 29, 5:50 PM CDT	Severe Thunderstorm Warning	LBF	40 min
May 29, 6:00 PM CDT	Mesoscale Discussion	SPC	2 hr
May 29, 6:28 PM CDT	Severe Thunderstorm Warning	LBF	47 min
May 30, 11:40 PM CDT	Special Weather Statement	LBF	65 min
May 31, 12:40 AM CDT	Special Weather Statement	LBF	65 min
Jun 10, 1:18 PM CDT	Areal Flood Advisory	LBF	103 min
Jun 16, 2:57 PM CDT	Mesoscale Discussion	SPC	3 hr
Jun 23, 6:17 PM CDT	Tornado Watch	SPC	8 hr
Jun 23, 9:45 PM CDT	Special Weather Statement	LBF	30 min
Jun 23, 10:19 PM CDT	Mesoscale Discussion	SPC	56 min
Jun 23, 10:24 PM CDT	Severe Thunderstorm Warning	LBF	51 min
Jun 23, 10:38 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 24, 12:19 AM CDT	Flash Flood Warning	LBF	5 hr
Jun 24, 12:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	54 min
Jun 24, 1:12 AM CDT	Severe Thunderstorm Warning	LBF	48 min
Jun 24, 1:21 AM CDT	Severe Thunderstorm Warning	LBF	39 min
Jun 24, 1:51 AM CDT	Mesoscale Discussion	SPC	84 min
Jun 24, 1:55 AM CDT	Special Weather Statement	LBF	80 min
Jun 27, 3:34 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 27, 7:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 10:39 PM CDT	Severe Thunderstorm Warning	LBF	66 min
Jun 29, 7:26 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 29, 8:53 PM CDT	Mesoscale Discussion	SPC	97 min
Jun 29, 10:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	66 min
Jun 29, 11:25 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 29, 11:26 PM CDT	Severe Thunderstorm Warning	LBF	64 min
Jun 30, 12:26 AM CDT	Severe Thunderstorm Warning	LBF	48 min
Jul 3, 3:48 PM CDT	Mesoscale Discussion	SPC	117 min
Jul 3, 10:23 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 7, 4:53 AM CDT	Special Weather Statement	LBF	37 min
Jul 10, 2:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 3:12 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 12, 12:10 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 12, 2:39 AM CDT	Mesoscale Discussion	SPC	96 min
Jul 12, 2:46 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	44 min
Jul 12, 3:21 AM CDT	Severe Thunderstorm Warning	LBF	39 min
Jul 13, 8:16 PM CDT	Mesoscale Discussion	SPC	89 min
Jul 14, 5:08 AM CDT	Special Weather Statement	LBF	37 min
Jul 14, 5:45 AM CDT	Special Weather Statement	LBF	45 min
Jul 17, 6:17 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 17, 11:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 18, 5:07 AM CDT	Severe Thunderstorm Warning	LBF	38 min
Jul 18, 5:40 AM CDT	Severe Thunderstorm Warning	LBF	50 min
Jul 18, 6:16 AM CDT	Special Weather Statement	LBF	29 min
Jul 18, 8:43 PM CDT	Mesoscale Discussion	SPC	62 min
Jul 18, 10:05 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jul 18, 10:23 PM CDT	Severe Thunderstorm Warning	LBF	52 min
Jul 18, 11:29 PM CDT	Severe Thunderstorm Warning	LBF	61 min
Jul 19, 3:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 24, 2:46 AM CDT	Heat Advisory	LBF	43 hr
Jul 25, 3:03 AM CDT	Severe Thunderstorm Warning	LBF	57 min
Jul 25, 7:34 PM CDT	Mesoscale Discussion	SPC	86 min
Jul 25, 8:47 PM CDT	Severe Thunderstorm Warning	LBF	43 min
Jul 25, 9:04 PM CDT	Tornado Warning	LBF	41 min
Jul 26, 2:11 PM CDT	Heat Advisory	LBF	31 hr
Jul 26, 4:31 PM CDT	Mesoscale Discussion	SPC	89 min
Jul 27, 1:48 AM CDT	Heat Advisory	LBF	43 hr
Jul 29, 3:20 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 29, 4:27 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	48 min
Aug 4, 6:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	47 min
Aug 4, 6:37 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 4, 7:10 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	50 min
Aug 4, 7:57 PM CDT	Special Weather Statement	LBF	48 min
Aug 4, 9:09 PM CDT	Mesoscale Discussion	SPC	96 min
Aug 4, 9:28 PM CDT	Special Weather Statement	LBF	47 min
Aug 4, 9:39 PM CDT	Severe Thunderstorm Warning	LBF	51 min
Aug 4, 10:13 PM CDT	Special Weather Statement	LBF	47 min
Aug 5, 4:51 PM CDT	Special Weather Statement	LBF	39 min
Aug 10, 5:21 PM CDT	Severe Thunderstorm Warning	LBF	54 min
Aug 12, 11:34 PM CDT	Severe Thunderstorm Warning	LBF	56 min
Aug 13, 2:06 AM CDT	Special Weather Statement	LBF	54 min
Aug 19, 2:48 PM CDT	Excessive Heat Watch	LBF	24 hr
Aug 20, 2:33 PM CDT	Heat Advisory	LBF	4 days
Sep 1, 1:54 PM CDT	Heat Advisory	LBF	53 hr
Sep 7, 6:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 7, 7:02 PM CDT	Special Weather Statement	LBF	43 min
Sep 7, 7:37 PM CDT	Special Weather Statement	LBF	68 min
Sep 7, 7:39 PM CDT	Severe Thunderstorm Warning	LBF	28 min
Sep 7, 8:42 PM CDT	Special Weather Statement	LBF	48 min
Sep 9, 2:46 AM CDT	Mesoscale Discussion	SPC	119 min
Sep 9, 1:27 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 9, 1:29 PM CDT	Special Weather Statement	LBF	31 min
Sep 9, 1:58 PM CDT	Special Weather Statement	LBF	32 min
Sep 21, 2:21 AM CDT	Special Weather Statement	LBF	24 min
Sep 21, 8:21 AM CDT	Areal Flood Advisory	LBF	4 hr
Sep 21, 6:21 PM CDT	Special Weather Statement	LBF	39 min
Sep 21, 6:56 PM CDT	Special Weather Statement	LBF	64 min
Sep 21, 7:01 PM CDT	Areal Flood Advisory	LBF	3 hr
Sep 21, 8:10 PM CDT	Areal Flood Advisory	LBF	2 hr
Sep 21, 10:15 PM CDT	Areal Flood Advisory	LBF	99 min
Sep 23, 2:27 AM CDT	Mesoscale Discussion	SPC	3 hr
Sep 30, 6:46 AM CDT	Dense Fog Advisory	LBF	5 hr
Oct 5, 2:38 AM CDT	Freeze Watch	LBF	24 hr
Oct 6, 2:33 AM CDT	Freeze Warning	LBF	30 hr
Oct 11, 3:18 AM CDT	High Wind Watch	LBF	24 hr
Oct 11, 8:40 PM CDT	Special Weather Statement	LBF	50 min
Oct 11, 8:50 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 11, 11:37 PM CDT	Areal Flood Advisory	LBF	3 hr
Oct 12, 3:17 AM CDT	High Wind Warning	LBF	36 hr
Oct 12, 11:35 AM CDT	Special Weather Statement	LBF	40 min
Oct 12, 1:12 PM CDT	Tornado Watch	SPC	6 hr
Oct 12, 3:35 PM CDT	Areal Flood Advisory	LBF	6 hr
Oct 12, 3:39 PM CDT	Areal Flood Advisory	LBF	6 hr
Oct 26, 1:50 PM CDT	Winter Weather Advisory	LBF	65 hr
Dec 22, 2:24 PM CST	Winter Weather Advisory	LBF	60 hr
Dec 23, 2:35 PM CST	Winter Storm Watch	LBF	12 hr
Dec 24, 2:51 AM CST	Blizzard Warning	LBF	3 days
Dec 25, 3:31 PM CST	Mesoscale Discussion	SPC	4 hr
Dec 25, 7:56 PM CST	Mesoscale Discussion	SPC	5 hr
Dec 26, 3:09 AM CST	Winter Weather Advisory	LBF	39 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	30
Tornado Warning	1
Severe Thunderstorm Watch	10
Tornado Watch	3
Mesoscale Discussion	34
Special Weather Statement	29
Flooding
Flash Flood Warning	1
Areal Flood Advisory	8
Winter
Blizzard Warning	1
Winter Storm Warning	3
Winter Storm Watch	6
Winter Weather Advisory	12
Heat
Excessive Heat Watch	1
Heat Advisory	5
Cold
Freeze Warning	1
Wind Chill Warning	2
Freeze Watch	1
Wind Chill Advisory	3
Wind and dust
High Wind Warning	1
High Wind Watch	1
Fire
Red Flag Warning	4
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.