Weather alerts in Cass County, Missouri, 2023

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

Cass County and its neighbors

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

Alerts: 135
Warnings: 45
Watches: 19
Advisories: 35
Busiest month: July40 alerts
Busiest day: September 23, 202317 alerts

Over time

By month

Warning verification

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

Cass County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	33	26	21%	30	100%	18 min
Flash flood warnings	1	1	0%	1	100%	23 min

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Kansas City, MO: tornado warnings	21	6	71%	11	64%	12 min
NWS Kansas City, MO: severe thunderstorm warnings	293	182	38%	459	92%	22 min
NWS Kansas City, MO: flash flood warnings	24	11	54%	21	86%	96 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, 1:50 AM CST	Dense Fog Advisory	EAX	16 hr
Jan 2, 9:01 PM CST	Areal Flood Advisory	EAX	3 hr
Jan 3, 11:17 AM CST	River Flood Warning	EAX	9 hr
Jan 23, 3:10 PM CST	Winter Weather Advisory	EAX	42 hr
Jan 29, 7:01 PM CST	Winter Weather Advisory	EAX	9 hr
Feb 13, 2:20 PM CST	Wind Advisory	EAX	28 hr
Feb 14, 5:01 PM CST	Special Weather Statement	EAX	29 min
Feb 15, 3:36 AM CST	Winter Weather Advisory	EAX	38 hr
Feb 24, 1:06 PM CST	Winter Weather Advisory	EAX	10 hr
Feb 26, 2:29 AM CST	Wind Advisory	EAX	37 hr
Feb 26, 10:58 PM CST	Mesoscale Discussion	SPC	2 hr
Feb 27, 2:27 AM CST	Severe Thunderstorm Warning	EAX	33 min
Mar 15, 3:11 PM CDT	Wind Advisory	EAX	33 hr
Mar 23, 3:12 AM CDT	Dense Fog Advisory	EAX	2 hr
Mar 29, 2:57 PM CDT	Wind Advisory	EAX	48 hr
Mar 29, 3:05 PM CDT	Fire Weather Watch	EAX	24 hr
Mar 30, 2:46 PM CDT	Red Flag Warning	EAX	30 hr
Mar 31, 3:23 AM CDT	High Wind Warning	EAX	16 hr
Mar 31, 3:23 AM CDT	Wind Advisory	EAX	31 hr
Mar 31, 8:36 AM CDT	Mesoscale Discussion	SPC	84 min
Mar 31, 8:48 AM CDT	Severe Thunderstorm Warning	EAX	42 min
Apr 2, 12:18 PM CDT	Red Flag Warning	EAX	6 hr
Apr 3, 1:52 PM CDT	Wind Advisory	EAX	34 hr
Apr 4, 5:41 PM CDT	Mesoscale Discussion	SPC	64 min
Apr 4, 6:18 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 4, 8:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 5, 12:05 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 5, 12:47 AM CDT	Severe Thunderstorm Warning	EAX	28 min
Apr 5, 2:13 PM CDT	Frost Advisory	EAX	18 hr
Apr 6, 9:22 PM CDT	Frost Advisory	EAX	12 hr
Apr 10, 12:20 PM CDT	Special Weather Statement	EAX	25 min
Apr 15, 3:28 PM CDT	Special Weather Statement	EAX	32 min
Apr 16, 2:32 AM CDT	Wind Advisory	EAX	16 hr
Apr 19, 2:35 AM CDT	Wind Advisory	EAX	28 hr
Apr 19, 2:45 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 19, 10:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 20, 4:19 AM CDT	Severe Thunderstorm Warning	EAX	29 min
Apr 20, 6:23 AM CDT	Special Weather Statement	EAX	37 min
Apr 20, 7:01 AM CDT	Areal Flood Advisory	EAX	64 min
Apr 21, 2:13 AM CDT	Freeze Watch	EAX	23 hr
Apr 22, 1:41 AM CDT	Freeze Warning	EAX	31 hr
Apr 23, 2:17 AM CDT	Frost Advisory	EAX	30 hr
May 9, 4:02 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 9, 5:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	55 min
Jun 5, 1:21 PM CDT	Special Weather Statement	EAX	24 min
Jun 5, 1:55 PM CDT	Special Weather Statement	EAX	35 min
Jun 11, 3:37 AM CDT	Areal Flood Advisory	EAX	6 hr
Jun 18, 4:21 AM CDT	Special Weather Statement	EAX	39 min
Jun 27, 1:57 PM CDT	Heat Advisory	EAX	3 days
Jun 30, 5:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 1, 6:30 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 1, 7:00 PM CDT	Severe Thunderstorm Warning	EAX	14 min
Jul 4, 10:36 PM CDT	Mesoscale Discussion	SPC	84 min
Jul 4, 10:56 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 5, 12:48 AM CDT	Mesoscale Discussion	SPC	87 min
Jul 5, 12:52 AM CDT	Severe Thunderstorm Warning	EAX	38 min
Jul 5, 1:27 AM CDT	Severe Thunderstorm Warning	EAX	30 min
Jul 11, 12:17 PM CDT	Heat Advisory	EAX	31 hr
Jul 12, 7:26 PM CDT	Mesoscale Discussion	SPC	94 min
Jul 12, 8:20 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 12, 11:02 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 14, 11:24 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 14, 1:37 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 14, 3:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	50 min
Jul 14, 3:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 14, 4:21 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	39 min
Jul 14, 4:58 PM CDT	Severe Thunderstorm Warning	EAX	47 min
Jul 14, 5:00 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 17, 12:48 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 1:28 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 17, 5:35 PM CDT	Severe Thunderstorm Warning	EAX	40 min
Jul 17, 5:40 PM CDT	Mesoscale Discussion	SPC	95 min
Jul 17, 6:05 PM CDT	Severe Thunderstorm Warning	EAX	25 min
Jul 17, 6:21 PM CDT	Severe Thunderstorm Warning	EAX	24 min
Jul 17, 6:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	48 min
Jul 24, 5:38 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 24, 8:10 AM CDT	Severe Thunderstorm Warning	EAX	50 min
Jul 24, 8:55 AM CDT	Special Weather Statement	EAX	50 min
Jul 24, 9:17 AM CDT	Severe Thunderstorm Warning	EAX	43 min
Jul 25, 2:07 PM CDT	Heat Advisory	EAX	45 hr
Jul 27, 3:14 AM CDT	Excessive Heat Warning	EAX	60 hr
Jul 29, 7:16 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 29, 11:19 AM CDT	Special Weather Statement	EAX	26 min
Jul 29, 12:01 PM CDT	Special Weather Statement	EAX	44 min
Jul 30, 7:13 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 30, 8:13 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 30, 8:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	52 min
Jul 30, 8:35 PM CDT	Severe Thunderstorm Warning Destructive damage threat	EAX	25 min
Jul 30, 8:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	55 min
Jul 31, 1:20 PM CDT	Heat Advisory	EAX	31 hr
Aug 1, 2:25 PM CDT	Heat Advisory	EAX	30 hr
Aug 2, 5:30 PM CDT	Mesoscale Discussion	SPC	3 hr
Aug 4, 5:17 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 10, 2:53 PM CDT	Heat Advisory	EAX	29 hr
Aug 13, 7:38 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 13, 9:12 PM CDT	Areal Flood Advisory	EAX	4 hr
Aug 17, 2:54 PM CDT	Excessive Heat Watch	EAX	36 hr
Aug 18, 2:13 PM CDT	Excessive Heat Warning	EAX	7 days
Aug 25, 6:57 PM CDT	Special Weather Statement	EAX	48 min
Sep 5, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 5, 5:42 PM CDT	Special Weather Statement	EAX	33 min
Sep 5, 5:50 PM CDT	Severe Thunderstorm Warning	EAX	40 min
Sep 5, 6:38 PM CDT	Severe Thunderstorm Warning	EAX	37 min
Sep 16, 2:30 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 16, 5:48 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 21, 7:23 PM CDT	Severe Thunderstorm Warning	EAX	37 min
Sep 21, 8:03 PM CDT	Special Weather Statement	EAX	27 min
Sep 23, 10:09 AM CDT	Mesoscale Discussion	SPC	2 hr
Sep 23, 11:47 AM CDT	Severe Thunderstorm Warning	EAX	43 min
Sep 23, 12:38 PM CDT	Severe Thunderstorm Warning	EAX	37 min
Sep 23, 1:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	28 min
Sep 23, 1:02 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 23, 3:41 PM CDT	Mesoscale Discussion	SPC	94 min
Sep 23, 3:59 PM CDT	Severe Thunderstorm Warning	EAX	31 min
Sep 23, 4:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	33 min
Sep 23, 4:32 PM CDT	Severe Thunderstorm Warning	EAX	28 min
Sep 23, 4:55 PM CDT	Severe Thunderstorm Warning	EAX	50 min
Sep 23, 5:07 PM CDT	Flash Flood Warning	EAX	3 hr
Sep 23, 5:13 PM CDT	Severe Thunderstorm Warning	EAX	32 min
Sep 23, 5:28 PM CDT	Severe Thunderstorm Warning	EAX	32 min
Sep 23, 5:35 PM CDT	Severe Thunderstorm Warning	EAX	55 min
Sep 23, 5:49 PM CDT	Special Weather Statement	EAX	26 min
Sep 23, 6:12 PM CDT	Areal Flood Advisory	EAX	6 hr
Sep 23, 6:38 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 23, 7:49 PM CDT	Areal Flood Advisory	EAX	4 hr
Sep 24, 1:37 AM CDT	River Flood Warning	EAX	10 hr
Oct 4, 9:31 PM CDT	Areal Flood Advisory	EAX	4 hr
Oct 6, 2:57 AM CDT	Frost Advisory	EAX	30 hr
Oct 28, 2:19 PM CDT	Freeze Warning	EAX	20 hr
Nov 24, 2:24 PM CST	Winter Weather Advisory	EAX	40 hr
Dec 2, 6:31 AM CST	Dense Fog Advisory	EAX	3 hr
Dec 23, 9:14 AM CST	Dense Fog Advisory	EAX	5 hr
Dec 25, 6:32 AM CST	River Flood Warning	EAX	26 hr
Dec 25, 2:30 PM CST	River Flood Warning	EAX	11 hr
Dec 26, 10:23 AM CST	Winter Weather Advisory	EAX	20 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	33
Severe Thunderstorm Watch	16
Mesoscale Discussion	22
Special Weather Statement	14
Flooding
Flash Flood Warning	1
River Flood Warning	4
Areal Flood Advisory	7
Winter
Winter Weather Advisory	6
Heat
Excessive Heat Warning	2
Excessive Heat Watch	1
Heat Advisory	6
Cold
Freeze Warning	2
Freeze Watch	1
Frost Advisory	4
Wind and dust
High Wind Warning	1
Wind Advisory	8
Fire
Red Flag Warning	2
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	4

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.