Weather alerts in Knox County, Missouri, 2024

114 weather alerts in 2024, 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 2024. Tap one for its archive.

Alerts: 114
Warnings: 33
Watches: 17
Advisories: 29
Busiest month: April19 alerts
Busiest day: June 13, 202410 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 2 tornado warnings covering Knox County in 2024 had a tornado report inside them.

Knox County, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	21	6	71%	3	100%	29 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS St. Louis, MO: tornado warnings	80	25	69%	57	56%	14 min
NWS St. Louis, MO: severe thunderstorm warnings	378	178	53%	985	64%	24 min
NWS St. Louis, MO: flash flood warnings	59	32	46%	123	85%	86 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 7, 3:06 AM CST	Winter Storm Watch	LSX	24 hr
Jan 8, 2:41 AM CST	Winter Storm Warning	LSX	40 hr
Jan 11, 3:06 AM CST	Winter Weather Advisory	LSX	45 hr
Jan 11, 12:56 PM CST	Wind Advisory	LSX	38 hr
Jan 12, 2:57 AM CST	Wind Chill Warning	LSX	4 days
Jan 12, 2:07 PM CST	Wind Chill Advisory	LSX	5 days
Jan 18, 2:48 AM CST	Wind Chill Advisory	LSX	57 hr
Jan 18, 1:32 PM CST	Wind Chill Warning	LSX	46 hr
Jan 20, 11:53 AM CST	Wind Chill Advisory	LSX	18 hr
Jan 21, 1:53 AM CST	Winter Weather Advisory	LSX	43 hr
Jan 22, 3:27 AM CST	Mesoscale Discussion	SPC	5 hr
Jan 23, 4:12 PM CST	Dense Fog Advisory	LSX	67 hr
Jan 26, 9:21 PM CST	Dense Fog Advisory	LSX	15 hr
Jan 28, 9:04 PM CST	Dense Fog Advisory	LSX	13 hr
Feb 7, 2:15 PM CST	Wind Advisory	LSX	28 hr
Feb 15, 1:06 PM CST	Winter Weather Advisory	LSX	28 hr
Feb 25, 1:35 PM CST	Red Flag Warning	LSX	28 hr
Mar 4, 1:25 PM CST	Mesoscale Discussion	SPC	2 hr
Mar 4, 6:06 PM CST	Severe Thunderstorm Warning	LSX	14 min
Mar 13, 10:10 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 13, 11:00 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 14, 2:22 AM CDT	Severe Thunderstorm Warning	LSX	38 min
Mar 14, 2:30 AM CDT	Mesoscale Discussion	SPC	90 min
Mar 24, 2:18 PM CDT	Wind Advisory	LSX	29 hr
Mar 26, 2:28 PM CDT	Freeze Warning	LSX	19 hr
Mar 31, 10:58 AM CDT	Mesoscale Discussion	SPC	3 hr
Mar 31, 5:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 1, 12:35 PM CDT	Mesoscale Discussion	SPC	115 min
Apr 3, 2:59 AM CDT	Wind Advisory	LSX	16 hr
Apr 4, 2:32 AM CDT	Freeze Warning	LSX	29 hr
Apr 5, 2:33 AM CDT	Frost Advisory	LSX	29 hr
Apr 16, 8:50 AM CDT	Mesoscale Discussion	SPC	55 min
Apr 16, 11:04 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 16, 11:39 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	51 min
Apr 16, 12:00 PM CDT	Severe Thunderstorm Warning	LSX	28 min
Apr 16, 12:06 PM CDT	Tornado Watch	SPC	10 hr
Apr 16, 12:47 PM CDT	Severe Thunderstorm Warning	LSX	32 min
Apr 16, 1:56 PM CDT	Mesoscale Discussion	SPC	64 min
Apr 16, 2:48 PM CDT	Wind Advisory	LSX	6 hr
Apr 16, 3:02 PM CDT	Severe Thunderstorm Warning	LSX	28 min
Apr 20, 2:24 PM CDT	Freeze Warning	LSX	18 hr
Apr 21, 1:54 PM CDT	Frost Advisory	LSX	18 hr
Apr 27, 1:18 PM CDT	Flood Watch	LSX	12 hr
Apr 27, 3:40 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 27, 5:58 PM CDT	Tornado Watch	SPC	6 hr
Apr 27, 7:11 PM CDT	Mesoscale Discussion	SPC	64 min
May 2, 1:42 PM CDT	Mesoscale Discussion	SPC	2 hr
May 6, 11:56 PM CDT	Mesoscale Discussion	SPC	94 min
May 7, 12:53 AM CDT	Tornado Watch	SPC	7 hr
May 7, 2:05 AM CDT	Severe Thunderstorm Warning	LSX	70 min
May 7, 2:29 AM CDT	Mesoscale Discussion	SPC	2 hr
May 7, 2:34 AM CDT	Tornado Warning	LSX	14 min
May 21, 3:54 PM CDT	Mesoscale Discussion	SPC	2 hr
May 21, 5:33 PM CDT	Mesoscale Discussion	SPC	117 min
May 21, 5:56 PM CDT	Tornado Watch	SPC	6 hr
May 21, 6:44 PM CDT	Severe Thunderstorm Warning	LSX	46 min
May 21, 6:55 PM CDT	Tornado Warning	LSX	35 min
May 21, 7:22 PM CDT	Severe Thunderstorm Warning	LSX	22 min
May 21, 7:34 PM CDT	Severe Thunderstorm Warning	LSX	41 min
May 21, 7:55 PM CDT	Mesoscale Discussion	SPC	2 hr
May 24, 5:17 AM CDT	Mesoscale Discussion	SPC	118 min
May 24, 11:57 AM CDT	Mesoscale Discussion	SPC	2 hr
May 24, 2:39 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 1, 11:39 PM CDT	Dense Fog Advisory	LSX	8 hr
Jun 13, 2:02 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 13, 2:59 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 13, 3:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	61 min
Jun 13, 4:57 PM CDT	Severe Thunderstorm Warning	LSX	48 min
Jun 13, 5:18 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 13, 5:22 PM CDT	Severe Thunderstorm Warning	LSX	38 min
Jun 13, 5:24 PM CDT	Areal Flood Advisory	LSX	81 min
Jun 13, 5:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	50 min
Jun 13, 6:35 PM CDT	Severe Thunderstorm Warning	LSX	55 min
Jun 13, 6:45 PM CDT	Flash Flood Warning	LSX	3 hr
Jun 19, 3:58 PM CDT	Mesoscale Discussion	SPC	92 min
Jun 22, 5:46 PM CDT	Mesoscale Discussion	SPC	119 min
Jun 22, 7:36 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 25, 4:54 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 25, 10:06 PM CDT	Severe Thunderstorm Warning	LSX	39 min
Jul 2, 2:24 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 2:26 PM CDT	Flood Watch	LSX	12 hr
Jul 2, 4:45 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 2, 8:07 PM CDT	Severe Thunderstorm Warning	LSX	38 min
Jul 7, 2:11 PM CDT	Severe Thunderstorm Warning	LSX	49 min
Jul 7, 2:52 PM CDT	Severe Thunderstorm Warning	LSX	53 min
Jul 7, 4:02 PM CDT	Areal Flood Advisory	LSX	118 min
Jul 10, 2:44 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 10, 5:04 PM CDT	Mesoscale Discussion	SPC	86 min
Jul 13, 2:29 PM CDT	Heat Advisory	LSX	68 hr
Jul 28, 3:27 AM CDT	Excessive Heat Warning	LSX	5 days
Jul 28, 3:27 AM CDT	Heat Advisory	LSX	5 days
Jul 30, 8:47 AM CDT	Mesoscale Discussion	SPC	88 min
Jul 30, 9:30 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 30, 12:49 PM CDT	Mesoscale Discussion	SPC	116 min
Jul 30, 3:36 PM CDT	Mesoscale Discussion	SPC	84 min
Jul 31, 2:31 AM CDT	Mesoscale Discussion	SPC	119 min
Jul 31, 3:46 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 31, 11:01 AM CDT	Mesoscale Discussion	SPC	89 min
Aug 12, 9:11 PM CDT	Dense Fog Advisory	LSX	9 hr
Aug 15, 4:01 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 15, 6:14 PM CDT	Mesoscale Discussion	SPC	91 min
Aug 25, 2:39 AM CDT	Heat Advisory	LSX	65 hr
Aug 27, 5:16 PM CDT	Mesoscale Discussion	SPC	119 min
Aug 27, 5:53 PM CDT	Severe Thunderstorm Warning	LSX	52 min
Aug 27, 6:39 PM CDT	Severe Thunderstorm Warning	LSX	33 min
Oct 14, 2:13 PM CDT	Freeze Warning	LSX	43 hr
Oct 30, 9:00 PM CDT	Mesoscale Discussion	SPC	90 min
Oct 30, 9:21 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Nov 14, 12:39 PM CST	Dense Fog Advisory	LSX	20 hr
Dec 14, 1:18 AM CST	Winter Weather Advisory	LSX	6 hr
Dec 14, 9:31 PM CST	Dense Fog Advisory	LSX	7 hr
Dec 25, 1:34 PM CST	Dense Fog Advisory	LSX	22 hr
Dec 28, 2:15 AM CST	Dense Fog Advisory	LSX	11 hr
Dec 28, 7:27 PM CST	Dense Fog Advisory	LSX	17 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	21
Tornado Warning	2
Severe Thunderstorm Watch	10
Tornado Watch	4
Mesoscale Discussion	35
Flooding
Flash Flood Warning	1
Flood Watch	2
Areal Flood Advisory	2
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	4
Heat
Excessive Heat Warning	1
Heat Advisory	3
Cold
Freeze Warning	4
Wind Chill Warning	2
Frost Advisory	2
Wind Chill Advisory	3
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	1
Fog and smoke
Dense Fog Advisory	10

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

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