Weather alerts in Knox County, Nebraska, 2022

144 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Knox County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts: 144
Warnings: 52
Watches: 19
Advisories: 47
Busiest month: May33 alerts
Busiest day: May 30, 202220 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 3 tornado warnings covering Knox County in 2022 had a tornado report inside them.

Knox County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	0	100%	0
Severe thunderstorm warnings	22	9	59%	10	80%	20 min
Flash flood warnings	0			0

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Omaha, NE: tornado warnings	37	7	81%	18	56%	15 min
NWS Omaha, NE: severe thunderstorm warnings	293	159	46%	463	84%	21 min
NWS Omaha, NE: flash flood warnings	8	3	63%	8	75%	23 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 4, 3:14 AM CST	Wind Advisory	OAX	27 hr
Jan 4, 2:42 PM CST	Wind Chill Advisory	OAX	21 hr
Jan 4, 2:42 PM CST	Wind Chill Advisory	OAX	45 hr
Jan 30, 2:50 AM CST	Fire Weather Watch	OAX	24 hr
Jan 31, 2:53 AM CST	Red Flag Warning	OAX	15 hr
Feb 2, 2:56 AM CST	Wind Chill Advisory	OAX	31 hr
Feb 8, 4:15 AM CST	Red Flag Warning	OAX	14 hr
Feb 11, 10:57 AM CST	Wind Advisory	OAX	4 hr
Feb 21, 2:46 AM CST	Wind Chill Advisory	OAX	33 hr
Feb 21, 2:46 AM CST	Winter Weather Advisory	OAX	36 hr
Feb 22, 2:29 AM CST	Wind Chill Advisory	OAX	34 hr
Feb 22, 2:47 PM CST	Wind Chill Warning	OAX	21 hr
Mar 5, 3:13 AM CST	Winter Weather Advisory	OAX	20 hr
Mar 14, 2:55 PM CDT	Red Flag Warning	OAX	29 hr
Mar 18, 3:21 PM CDT	Fire Weather Watch	OAX	23 hr
Mar 19, 2:29 PM CDT	Red Flag Warning	OAX	31 hr
Mar 24, 3:30 AM CDT	Fire Weather Watch	OAX	12 hr
Mar 24, 3:11 PM CDT	Red Flag Warning	OAX	29 hr
Mar 24, 3:14 PM CDT	Wind Advisory	OAX	28 hr
Mar 29, 3:38 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 29, 5:33 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 30, 12:38 AM CDT	Wind Advisory	OAX	8 hr
Apr 4, 3:38 PM CDT	Red Flag Warning	OAX	29 hr
Apr 5, 3:05 PM CDT	Wind Advisory	OAX	28 hr
Apr 6, 3:11 AM CDT	Wind Advisory	OAX	42 hr
Apr 6, 3:10 PM CDT	High Wind Warning	OAX	30 hr
Apr 7, 2:38 PM CDT	Red Flag Warning	OAX	29 hr
Apr 8, 3:23 PM CDT	Red Flag Warning	OAX	29 hr
Apr 10, 3:28 PM CDT	Red Flag Warning	OAX	29 hr
Apr 11, 3:55 PM CDT	Wind Advisory	OAX	37 hr
Apr 12, 3:56 AM CDT	Fire Weather Watch	OAX	24 hr
Apr 12, 2:48 PM CDT	Mesoscale Discussion	SPC	87 min
Apr 12, 3:41 PM CDT	Tornado Watch	SPC	6 hr
Apr 12, 7:55 PM CDT	High Wind Warning	OAX	2 hr
Apr 12, 7:55 PM CDT	Wind Advisory	OAX	9 hr
Apr 13, 3:33 AM CDT	Fire Weather Watch	OAX	24 hr
Apr 13, 3:33 AM CDT	Red Flag Warning	OAX	17 hr
Apr 13, 10:58 AM CDT	Wind Advisory	OAX	4 hr
Apr 13, 3:12 PM CDT	Wind Advisory	OAX	28 hr
Apr 14, 3:17 AM CDT	Red Flag Warning	OAX	18 hr
Apr 19, 2:26 AM CDT	Wind Advisory	OAX	17 hr
Apr 21, 3:33 PM CDT	High Wind Watch	OAX	19 hr
Apr 22, 3:32 AM CDT	Wind Advisory	OAX	14 hr
Apr 22, 3:29 PM CDT	Wind Advisory	OAX	31 hr
Apr 23, 2:23 AM CDT	Red Flag Warning	OAX	18 hr
Apr 23, 10:19 AM CDT	High Wind Warning	OAX	9 hr
Apr 24, 3:33 AM CDT	Wind Advisory	OAX	14 hr
Apr 25, 2:20 PM CDT	Red Flag Warning	OAX	30 hr
Apr 29, 3:44 PM CDT	Wind Advisory	OAX	30 hr
May 11, 12:50 PM CDT	Mesoscale Discussion	SPC	2 hr
May 11, 1:15 PM CDT	Tornado Watch	SPC	8 hr
May 12, 1:39 PM CDT	Mesoscale Discussion	SPC	3 hr
May 12, 2:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 12, 2:42 PM CDT	Mesoscale Discussion	SPC	2 hr
May 12, 3:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	41 min
May 12, 3:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	54 min
May 12, 3:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	50 min
May 12, 3:53 PM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	22 min
May 12, 3:59 PM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	61 min
May 17, 7:12 AM CDT	Severe Thunderstorm Warning	OAX	33 min
May 21, 2:51 AM CDT	Frost Advisory	OAX	29 hr
May 29, 5:49 PM CDT	Mesoscale Discussion	SPC	86 min
May 29, 7:16 PM CDT	Tornado Watch	SPC	8 hr
May 29, 9:16 PM CDT	Mesoscale Discussion	SPC	89 min
May 29, 10:26 PM CDT	Severe Thunderstorm Warning	OAX	23 min
May 29, 11:25 PM CDT	Mesoscale Discussion	SPC	95 min
May 29, 11:33 PM CDT	Severe Thunderstorm Warning	OAX	42 min
May 30, 12:04 AM CDT	Tornado Warning	OAX	41 min
May 30, 12:16 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	44 min
May 30, 12:30 AM CDT	Tornado Warning	OAX	45 min
May 30, 12:41 AM CDT	Severe Thunderstorm Warning	OAX	23 min
May 30, 1:02 AM CDT	Tornado Warning	OAX	43 min
May 30, 2:50 AM CDT	Special Weather Statement	OAX	40 min
May 30, 3:35 AM CDT	Wind Advisory	OAX	19 hr
May 30, 5:07 AM CDT	Special Weather Statement	OAX	23 min
May 30, 9:27 AM CDT	Mesoscale Discussion	SPC	93 min
May 30, 11:28 AM CDT	Mesoscale Discussion	SPC	92 min
May 30, 11:49 AM CDT	Tornado Watch	SPC	6 hr
May 30, 12:00 PM CDT	Severe Thunderstorm Warning	OAX	30 min
May 30, 12:42 PM CDT	Severe Thunderstorm Warning	OAX	48 min
May 30, 4:21 PM CDT	Special Weather Statement	OAX	24 min
May 30, 4:50 PM CDT	Special Weather Statement	OAX	40 min
Jun 12, 12:44 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 12, 2:46 PM CDT	Heat Advisory	OAX	52 hr
Jun 15, 1:00 AM CDT	Severe Thunderstorm Warning	OAX	25 min
Jun 16, 2:25 PM CDT	Excessive Heat Watch	OAX	37 hr
Jun 17, 4:08 PM CDT	Heat Advisory	OAX	3 days
Jun 20, 9:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	33 min
Jun 24, 8:47 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 29, 10:02 AM CDT	Wind Advisory	OAX	10 hr
Jun 29, 10:04 AM CDT	Red Flag Warning	OAX	10 hr
Jul 2, 8:12 PM CDT	Severe Thunderstorm Warning	OAX	48 min
Jul 3, 2:59 PM CDT	Heat Advisory	OAX	53 hr
Jul 4, 12:35 AM CDT	Mesoscale Discussion	SPC	55 min
Jul 4, 2:03 AM CDT	Special Weather Statement	OAX	42 min
Jul 5, 1:37 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 5, 2:44 PM CDT	Severe Thunderstorm Warning	OAX	46 min
Jul 5, 3:25 PM CDT	Severe Thunderstorm Warning	OAX	50 min
Jul 5, 4:00 PM CDT	Severe Thunderstorm Warning	OAX	45 min
Jul 9, 3:26 AM CDT	Heat Advisory	OAX	41 hr
Jul 14, 5:17 AM CDT	Heat Advisory	OAX	15 hr
Jul 17, 3:17 PM CDT	Heat Advisory	OAX	30 hr
Jul 22, 3:14 AM CDT	Heat Advisory	OAX	41 hr
Aug 1, 2:44 AM CDT	Heat Advisory	OAX	41 hr
Aug 1, 3:46 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 1, 6:02 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 1, 8:29 PM CDT	Mesoscale Discussion	SPC	61 min
Aug 1, 8:33 PM CDT	Severe Thunderstorm Warning	OAX	42 min
Aug 1, 9:04 PM CDT	Severe Thunderstorm Warning	OAX	41 min
Aug 1, 9:19 PM CDT	Severe Thunderstorm Warning	OAX	41 min
Aug 4, 2:56 PM CDT	Heat Advisory	OAX	29 hr
Aug 31, 4:19 PM CDT	Special Weather Statement	OAX	26 min
Aug 31, 5:16 PM CDT	Special Weather Statement	OAX	29 min
Aug 31, 5:38 PM CDT	Severe Thunderstorm Warning	OAX	29 min
Sep 8, 3:30 AM CDT	Red Flag Warning	OAX	16 hr
Sep 16, 6:55 PM CDT	Mesoscale Discussion	SPC	4 hr
Oct 6, 2:35 PM CDT	Freeze Warning	OAX	19 hr
Oct 7, 3:24 AM CDT	Freeze Warning	OAX	30 hr
Oct 11, 11:20 AM CDT	Red Flag Warning	OAX	9 hr
Oct 11, 3:47 PM CDT	Fire Weather Watch	OAX	19 hr
Oct 11, 3:47 PM CDT	Fire Weather Watch	OAX	23 hr
Oct 12, 3:36 AM CDT	Red Flag Warning	OAX	15 hr
Oct 12, 3:36 AM CDT	Wind Advisory	OAX	15 hr
Oct 12, 2:48 PM CDT	Red Flag Warning	OAX	28 hr
Oct 13, 2:52 AM CDT	Wind Advisory	OAX	16 hr
Oct 22, 2:52 AM CDT	Fire Weather Watch	OAX	7 hr
Oct 22, 10:20 AM CDT	Red Flag Warning	OAX	34 hr
Oct 23, 3:06 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 23, 4:56 PM CDT	Special Weather Statement	OAX	49 min
Nov 6, 2:09 AM CST	Red Flag Warning	OAX	16 hr
Nov 28, 2:43 AM CST	Winter Weather Advisory	OAX	39 hr
Dec 1, 3:41 PM CST	Wind Advisory	OAX	32 hr
Dec 7, 3:47 PM CST	Winter Weather Advisory	OAX	32 hr
Dec 9, 2:32 AM CST	Winter Weather Advisory	OAX	2 hr
Dec 13, 3:02 AM CST	Winter Weather Advisory	OAX	69 hr
Dec 14, 3:10 PM CST	Wind Advisory	OAX	27 hr
Dec 19, 3:56 AM CST	Winter Storm Watch	OAX	34 hr
Dec 19, 1:44 PM CST	Wind Chill Warning	OAX	5 days
Dec 20, 1:58 PM CST	Winter Weather Advisory	OAX	3 days
Dec 21, 7:01 PM CST	Mesoscale Discussion	SPC	4 hr
Dec 23, 1:54 PM CST	Wind Chill Advisory	OAX	21 hr
Dec 24, 3:09 PM CST	Wind Chill Advisory	OAX	17 hr
Dec 25, 2:56 PM CST	Wind Advisory	OAX	13 hr
Dec 28, 2:44 PM CST	Winter Weather Advisory	OAX	30 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	22
Tornado Warning	3
Severe Thunderstorm Watch	4
Tornado Watch	4
Mesoscale Discussion	18
Special Weather Statement	8
Winter
Winter Storm Watch	1
Winter Weather Advisory	8
Heat
Excessive Heat Watch	1
Heat Advisory	9
Cold
Freeze Warning	2
Wind Chill Warning	2
Frost Advisory	1
Wind Chill Advisory	7
Wind and dust
High Wind Warning	3
High Wind Watch	1
Wind Advisory	22
Fire
Red Flag Warning	20
Fire Weather Watch	8

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2021 2023

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.