Weather alerts in Henry County, Missouri, 2024

159 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Henry County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts: 159
Warnings: 67
Watches: 26
Advisories: 30
Busiest month: May36 alerts
Busiest day: April 28, 202412 alerts

Over time

By month

Warning verification

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

3 of 5 tornado warnings covering Henry County in 2024 had a tornado report inside them; 4 of 5 tornado reports fell inside a warning, on average 6 minutes after it went out.

Henry County, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	3	40%	5	80%	6 min
Severe thunderstorm warnings	35	26	26%	32	97%	22 min
Flash flood warnings	3	3	0%	5	100%	159 min

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Kansas City, MO: tornado warnings	44	16	64%	37	62%	11 min
NWS Kansas City, MO: severe thunderstorm warnings	425	299	30%	1,290	91%	21 min
NWS Kansas City, MO: flash flood warnings	28	24	14%	110	96%	137 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 3, 12:29 AM CST	Dense Fog Advisory	EAX	12 hr
Jan 4, 2:05 AM CST	Dense Fog Advisory	EAX	6 hr
Jan 6, 2:24 PM CST	Winter Storm Watch	EAX	23 hr
Jan 7, 1:20 PM CST	Winter Weather Advisory	EAX	53 hr
Jan 11, 2:47 AM CST	Winter Weather Advisory	EAX	51 hr
Jan 12, 2:50 AM CST	Wind Chill Warning	EAX	4 days
Jan 17, 2:13 PM CST	Wind Chill Advisory	EAX	70 hr
Jan 21, 1:56 AM CST	Winter Weather Advisory	EAX	34 hr
Jan 23, 4:51 AM CST	Dense Fog Advisory	EAX	7 hr
Jan 23, 2:18 PM CST	Dense Fog Advisory	EAX	45 hr
Jan 24, 5:55 AM CST	River Flood Warning	EAX	3 days
Jan 25, 11:47 AM CST	Dense Fog Advisory	EAX	22 hr
Feb 7, 12:55 PM CST	Wind Advisory	EAX	29 hr
Feb 26, 1:55 PM CST	Red Flag Warning	EAX	28 hr
Feb 27, 3:09 AM CST	Wind Advisory	EAX	20 hr
Mar 2, 1:31 PM CST	Red Flag Warning	EAX	28 hr
Mar 7, 3:46 AM CST	Special Weather Statement	EAX	44 min
Mar 12, 9:07 PM CDT	Severe Thunderstorm Warning	EAX	53 min
Mar 12, 9:48 PM CDT	Severe Thunderstorm Warning	EAX	57 min
Mar 13, 3:54 PM CDT	Mesoscale Discussion	SPC	2 hr
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, 2:30 AM CDT	Mesoscale Discussion	SPC	90 min
Mar 14, 3:39 AM CDT	Severe Thunderstorm Warning	EAX	36 min
Mar 14, 4:01 AM CDT	Severe Thunderstorm Warning	EAX	44 min
Mar 14, 4:09 AM CDT	Severe Thunderstorm Warning	EAX	36 min
Mar 14, 12:58 PM CDT	Mesoscale Discussion	SPC	92 min
Mar 14, 1:33 PM CDT	Tornado Watch	SPC	7 hr
Mar 24, 3:50 AM CDT	Wind Advisory	EAX	33 hr
Mar 26, 2:08 PM CDT	Freeze Warning	EAX	20 hr
Apr 1, 3:01 PM CDT	Mesoscale Discussion	SPC	89 min
Apr 1, 3:29 PM CDT	Tornado Watch	SPC	8 hr
Apr 1, 5:28 PM CDT	Mesoscale Discussion	SPC	92 min
Apr 1, 5:39 PM CDT	Special Weather Statement	EAX	36 min
Apr 4, 3:27 AM CDT	Frost Advisory	EAX	28 hr
Apr 16, 3:36 AM CDT	Wind Advisory	EAX	15 hr
Apr 18, 12:08 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 18, 12:26 PM CDT	Severe Thunderstorm Warning	EAX	49 min
Apr 18, 12:56 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 18, 1:09 PM CDT	Severe Thunderstorm Warning	EAX	51 min
Apr 20, 2:55 PM CDT	Frost Advisory	EAX	18 hr
Apr 21, 1:30 PM CDT	Frost Advisory	EAX	19 hr
Apr 25, 7:46 PM CDT	High Wind Warning	EAX	79 min
Apr 26, 1:40 PM CDT	Flood Watch	EAX	45 hr
Apr 26, 3:47 PM CDT	Tornado Watch	SPC	8 hr
Apr 26, 6:42 PM CDT	Tornado Warning	EAX	48 min
Apr 26, 7:09 PM CDT	Severe Thunderstorm Warning	EAX	51 min
Apr 27, 9:51 AM CDT	River Flood Warning	EAX	4 days
Apr 27, 4:31 PM CDT	Mesoscale Discussion	SPC	59 min
Apr 27, 4:57 PM CDT	Tornado Watch	SPC	8 hr
Apr 27, 8:25 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 27, 8:31 PM CDT	Severe Thunderstorm Warning	EAX	44 min
Apr 27, 8:35 PM CDT	Tornado Warning	EAX	40 min
Apr 27, 9:07 PM CDT	Severe Thunderstorm Warning	EAX	38 min
Apr 27, 9:11 PM CDT	Tornado Warning	EAX	34 min
Apr 27, 9:41 PM CDT	Severe Thunderstorm Warning	EAX	64 min
Apr 28, 12:34 AM CDT	Flash Flood Warning	EAX	8 hr
Apr 28, 2:09 AM CDT	Flash Flood Warning	EAX	7 hr
Apr 28, 3:42 AM CDT	River Flood Warning	EAX	60 hr
Apr 28, 8:52 AM CDT	Areal Flood Warning	EAX	9 hr
Apr 28, 8:54 AM CDT	Areal Flood Warning	EAX	9 hr
Apr 28, 5:40 PM CDT	Areal Flood Warning	EAX	6 hr
Apr 30, 5:52 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 30, 8:44 PM CDT	Mesoscale Discussion	SPC	91 min
May 2, 8:43 AM CDT	River Flood Warning	EAX	58 hr
May 2, 1:42 PM CDT	Mesoscale Discussion	SPC	2 hr
May 3, 8:33 AM CDT	River Flood Warning	EAX	6 hr
May 6, 8:08 PM CDT	River Flood Warning	EAX	9 hr
May 6, 8:41 PM CDT	Tornado Watch	SPC	7 hr
May 6, 11:34 PM CDT	Tornado Warning	EAX	26 min
May 6, 11:36 PM CDT	Severe Thunderstorm Warning	EAX	69 min
May 6, 11:56 PM CDT	Mesoscale Discussion	SPC	94 min
May 7, 12:25 AM CDT	Severe Thunderstorm Warning	EAX	65 min
May 7, 7:30 AM CDT	River Flood Warning	EAX	13 hr
May 8, 6:14 AM CDT	Mesoscale Discussion	SPC	2 hr
May 8, 6:50 AM CDT	Severe Thunderstorm Watch	SPC	10 hr
May 8, 7:10 AM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	35 min
May 8, 7:34 AM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	41 min
May 8, 8:00 AM CDT	Areal Flood Advisory	EAX	18 min
May 8, 8:02 AM CDT	Severe Thunderstorm Warning	EAX	43 min
May 8, 8:18 AM CDT	Flash Flood Warning	EAX	6 hr
May 8, 9:22 AM CDT	River Flood Warning	EAX	31 hr
May 8, 2:09 PM CDT	Special Weather Statement	EAX	36 min
May 8, 2:13 PM CDT	Areal Flood Warning	EAX	19 hr
May 8, 2:18 PM CDT	Severe Thunderstorm Warning	EAX	27 min
May 8, 5:26 PM CDT	Special Weather Statement	EAX	34 min
May 19, 5:55 PM CDT	Mesoscale Discussion	SPC	95 min
May 19, 6:25 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 19, 10:38 PM CDT	Mesoscale Discussion	SPC	2 hr
May 21, 2:15 PM CDT	Mesoscale Discussion	SPC	2 hr
May 21, 2:40 PM CDT	Tornado Watch	SPC	7 hr
May 21, 4:39 PM CDT	Severe Thunderstorm Warning	EAX	36 min
May 21, 5:10 PM CDT	Severe Thunderstorm Warning	EAX	35 min
May 21, 5:25 PM CDT	Tornado Warning	EAX	35 min
May 21, 5:42 PM CDT	Severe Thunderstorm Warning	EAX	18 min
May 25, 2:14 PM CDT	Flood Watch	EAX	16 hr
May 25, 9:04 PM CDT	Tornado Watch	SPC	8 hr
May 25, 11:20 PM CDT	Severe Thunderstorm Warning	EAX	40 min
May 26, 3:16 PM CDT	Severe Thunderstorm Warning	EAX	29 min
Jun 8, 2:26 AM CDT	Areal Flood Advisory	EAX	3 hr
Jun 8, 5:26 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 9, 2:51 AM CDT	Mesoscale Discussion	SPC	84 min
Jun 13, 8:12 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 13, 10:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	48 min
Jun 14, 12:44 AM CDT	Mesoscale Discussion	SPC	91 min
Jun 23, 2:25 AM CDT	Heat Advisory	EAX	66 hr
Jun 25, 11:42 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 26, 1:17 AM CDT	Mesoscale Discussion	SPC	118 min
Jun 28, 10:32 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 28, 10:59 PM CDT	Severe Thunderstorm Warning	EAX	61 min
Jun 28, 11:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 29, 5:08 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 1, 2:16 PM CDT	Heat Advisory	EAX	30 hr
Jul 1, 4:06 PM CDT	River Flood Warning	EAX	26 hr
Jul 2, 9:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	26 min
Jul 2, 9:44 PM CDT	Severe Thunderstorm Warning	EAX	31 min
Jul 2, 10:13 PM CDT	Severe Thunderstorm Warning	EAX	32 min
Jul 3, 2:29 PM CDT	Flood Watch	EAX	30 hr
Jul 4, 1:35 AM CDT	Mesoscale Discussion	SPC	115 min
Jul 4, 5:52 AM CDT	River Flood Warning	EAX	53 hr
Jul 8, 7:26 PM CDT	Special Weather Statement	EAX	34 min
Jul 8, 8:31 PM CDT	Areal Flood Warning	EAX	3 hr
Jul 9, 4:12 AM CDT	River Flood Warning	EAX	7 hr
Jul 11, 7:15 PM CDT	Severe Thunderstorm Warning	EAX	45 min
Jul 11, 7:50 PM CDT	Severe Thunderstorm Warning	EAX	40 min
Jul 11, 8:08 PM CDT	Severe Thunderstorm Warning	EAX	37 min
Jul 11, 8:40 PM CDT	Severe Thunderstorm Warning	EAX	35 min
Jul 11, 10:11 PM CDT	Severe Thunderstorm Warning	EAX	34 min
Jul 12, 12:06 AM CDT	Special Weather Statement	EAX	39 min
Jul 12, 1:58 PM CDT	Heat Advisory	EAX	3 days
Jul 13, 5:35 AM CDT	Special Weather Statement	EAX	25 min
Jul 28, 3:11 AM CDT	Excessive Heat Watch	EAX	11 hr
Jul 28, 2:15 PM CDT	Excessive Heat Warning	EAX	4 days
Jul 28, 2:15 PM CDT	Heat Advisory	EAX	47 hr
Jul 29, 2:31 PM CDT	Heat Advisory	EAX	3 days
Jul 31, 9:17 PM CDT	Mesoscale Discussion	SPC	88 min
Jul 31, 9:36 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Aug 13, 2:07 PM CDT	Heat Advisory	EAX	29 hr
Aug 23, 1:52 PM CDT	Heat Advisory	EAX	4 days
Aug 27, 5:16 PM CDT	Mesoscale Discussion	SPC	119 min
Aug 29, 4:43 PM CDT	Special Weather Statement	EAX	32 min
Aug 29, 10:39 PM CDT	Special Weather Statement	EAX	36 min
Sep 19, 5:05 PM CDT	Severe Thunderstorm Warning	EAX	40 min
Sep 19, 5:29 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Sep 19, 7:39 PM CDT	Special Weather Statement	EAX	36 min
Oct 14, 3:00 AM CDT	Freeze Watch	EAX	11 hr
Oct 14, 1:53 PM CDT	Freeze Warning	EAX	43 hr
Oct 30, 4:35 PM CDT	Tornado Watch	SPC	5 hr
Oct 30, 8:39 PM CDT	Severe Thunderstorm Warning	EAX	51 min
Oct 30, 9:00 PM CDT	Mesoscale Discussion	SPC	90 min
Oct 30, 9:11 PM CDT	Severe Thunderstorm Warning	EAX	49 min
Oct 30, 9:51 PM CDT	Special Weather Statement	EAX	24 min
Nov 4, 4:20 PM CST	Special Weather Statement	EAX	40 min
Nov 18, 2:07 AM CST	Wind Advisory	EAX	17 hr
Nov 18, 6:51 PM CST	High Wind Warning	EAX	3 hr
Nov 18, 8:13 PM CST	Wind Advisory	EAX	8 hr
Nov 29, 1:56 PM CST	Winter Weather Advisory	EAX	25 hr
Dec 28, 12:36 AM CST	Dense Fog Advisory	EAX	12 hr
Dec 28, 6:08 PM CST	Dense Fog Advisory	EAX	18 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	35
Tornado Warning	5
Severe Thunderstorm Watch	12
Tornado Watch	8
Mesoscale Discussion	24
Special Weather Statement	12
Flooding
Areal Flood Warning	5
Flash Flood Warning	3
River Flood Warning	11
Flood Watch	3
Areal Flood Advisory	2
Winter
Winter Storm Watch	1
Winter Weather Advisory	4
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	7
Cold
Freeze Warning	2
Wind Chill Warning	1
Freeze Watch	1
Frost Advisory	3
Wind Chill Advisory	1
Wind and dust
High Wind Warning	2
Wind Advisory	6
Fire
Red Flag Warning	2
Fog and smoke
Dense Fog Advisory	7

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.