Alert archive / Missouri / Shannon County

Weather alerts in Shannon County, Missouri, 2015

171 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Shannon County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts: 171
Warnings: 64
Watches: 27
Advisories: 36
Busiest month: July46 alerts
Busiest day: April 3, 20158 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 4 tornado warnings covering Shannon County in 2015 had a tornado report inside them.

Shannon County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	0	100%	0
Severe thunderstorm warnings	16	9	44%	4	75%	27 min
Flash flood warnings	11	8	27%	2	100%	237 min

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Springfield, MO: tornado warnings	43	12	72%	28	71%	11 min
NWS Springfield, MO: severe thunderstorm warnings	293	170	42%	436	83%	24 min
NWS Springfield, MO: flash flood warnings	122	81	34%	326	88%	156 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, 8:41 AM CST	Areal Flood Warning	SGF	6 hr
Jan 6, 2:57 PM CST	Wind Chill Advisory	SGF	43 hr
Jan 10, 2:56 PM CST	Winter Weather Advisory	SGF	42 hr
Jan 11, 10:31 AM CST	Mesoscale Discussion	SPC	4 hr
Jan 14, 3:31 PM CST	Winter Weather Advisory	SGF	16 hr
Feb 4, 4:03 PM CST	Winter Weather Advisory	SGF	8 hr
Feb 14, 3:01 PM CST	Winter Weather Advisory	SGF	13 hr
Feb 15, 3:39 AM CST	Winter Storm Warning	SGF	35 hr
Feb 16, 2:57 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 17, 9:52 AM CST	Winter Weather Advisory	SGF	14 hr
Feb 18, 4:31 AM CST	Wind Chill Advisory	SGF	29 hr
Feb 19, 3:21 PM CST	Winter Weather Advisory	SGF	13 hr
Feb 20, 4:44 AM CST	Winter Weather Advisory	SGF	28 hr
Feb 20, 3:17 PM CST	Winter Storm Warning	SGF	20 hr
Feb 20, 6:37 PM CST	Mesoscale Discussion	SPC	6 hr
Feb 21, 2:59 AM CST	Mesoscale Discussion	SPC	2 hr
Feb 27, 2:39 PM CST	Winter Weather Advisory	SGF	47 hr
Feb 28, 7:59 PM CST	Mesoscale Discussion	SPC	6 hr
Mar 1, 2:42 AM CST	Mesoscale Discussion	SPC	3 hr
Mar 3, 3:37 AM CST	Winter Storm Watch	SGF	12 hr
Mar 3, 3:34 PM CST	Winter Storm Warning	SGF	34 hr
Mar 4, 6:40 AM CST	Mesoscale Discussion	SPC	5 hr
Mar 4, 1:34 PM CST	Mesoscale Discussion	SPC	4 hr
Mar 10, 10:53 PM CDT	Dense Fog Advisory	SGF	13 hr
Mar 11, 2:21 PM CDT	Flood Watch	SGF	61 hr
Mar 13, 10:45 AM CDT	Areal Flood Warning	SGF	23 hr
Mar 14, 10:00 AM CDT	Areal Flood Warning	SGF	12 hr
Mar 14, 9:54 PM CDT	Areal Flood Advisory	SGF	12 hr
Mar 24, 2:53 PM CDT	Flood Watch	SGF	37 hr
Mar 25, 2:16 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 25, 6:13 PM CDT	Severe Thunderstorm Warning	SGF	47 min
Mar 25, 6:23 PM CDT	Tornado Warning	SGF	37 min
Mar 25, 6:56 PM CDT	Severe Thunderstorm Warning	SGF	49 min
Mar 26, 1:59 AM CDT	Areal Flood Warning	SGF	14 hr
Mar 26, 4:04 AM CDT	Areal Flood Warning	SGF	12 hr
Mar 26, 1:53 PM CDT	River Flood Warning	SGF	12 hr
Apr 2, 3:14 AM CDT	Flood Watch	SGF	27 hr
Apr 2, 2:46 PM CDT	Mesoscale Discussion	SPC	89 min
Apr 2, 7:02 PM CDT	Tornado Watch	SPC	8 hr
Apr 3, 12:59 AM CDT	Tornado Warning	SGF	46 min
Apr 3, 1:16 AM CDT	Mesoscale Discussion	SPC	59 min
Apr 3, 1:25 AM CDT	Tornado Warning	SGF	35 min
Apr 3, 1:52 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 3, 4:37 AM CDT	Mesoscale Discussion	SPC	83 min
Apr 3, 5:36 AM CDT	Severe Thunderstorm Warning	SGF	24 min
Apr 3, 11:13 AM CDT	Frost Advisory	SGF	22 hr
Apr 9, 2:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 9, 6:37 PM CDT	Severe Thunderstorm Warning	SGF	38 min
Apr 9, 7:13 PM CDT	Severe Thunderstorm Warning	SGF	32 min
Apr 9, 7:27 PM CDT	Severe Thunderstorm Warning	SGF	63 min
Apr 22, 2:25 PM CDT	Frost Advisory	SGF	18 hr
May 10, 11:00 AM CDT	Mesoscale Discussion	SPC	3 hr
May 10, 1:22 PM CDT	Tornado Watch	SPC	4 hr
May 10, 3:12 PM CDT	Special Weather Statement	SGF	33 min
May 11, 1:58 AM CDT	Special Weather Statement	SGF	32 min
May 17, 2:06 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 17, 4:27 AM CDT	Mesoscale Discussion	SPC	93 min
May 22, 2:57 PM CDT	Flash Flood Watch	SGF	61 hr
May 24, 12:54 PM CDT	Mesoscale Discussion	SPC	96 min
May 24, 1:18 PM CDT	Tornado Watch	SPC	6 hr
May 24, 3:32 PM CDT	Severe Thunderstorm Warning	SGF	28 min
May 24, 6:04 PM CDT	Mesoscale Discussion	SPC	116 min
May 25, 6:57 PM CDT	Mesoscale Discussion	SPC	93 min
May 25, 7:47 PM CDT	Tornado Watch	SPC	5 hr
May 25, 8:52 PM CDT	Mesoscale Discussion	SPC	83 min
May 25, 11:09 PM CDT	Special Weather Statement	SGF	51 min
May 25, 11:48 PM CDT	Mesoscale Discussion	SPC	87 min
May 27, 3:53 AM CDT	Mesoscale Discussion	SPC	2 hr
May 27, 5:29 PM CDT	Special Weather Statement	SGF	46 min
May 28, 10:39 AM CDT	Flash Flood Watch	SGF	50 hr
May 29, 6:54 PM CDT	Severe Thunderstorm Warning	SGF	36 min
May 30, 10:31 AM CDT	Areal Flood Advisory	SGF	7 hr
May 30, 1:20 PM CDT	Areal Flood Warning	SGF	8 hr
May 30, 8:50 PM CDT	Areal Flood Advisory	SGF	15 hr
May 31, 11:43 AM CDT	Areal Flood Advisory	SGF	24 hr
Jun 4, 4:47 PM CDT	Special Weather Statement	SGF	43 min
Jun 5, 3:18 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 12, 2:58 PM CDT	Special Weather Statement	SGF	17 min
Jun 13, 3:51 PM CDT	Mesoscale Discussion	SPC	84 min
Jun 16, 3:31 AM CDT	Flash Flood Watch	SGF	4 days
Jun 19, 10:56 AM CDT	Areal Flood Warning	SGF	24 hr
Jun 26, 11:50 AM CDT	Mesoscale Discussion	SPC	115 min
Jun 28, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 28, 9:39 PM CDT	Mesoscale Discussion	SPC	66 min
Jun 30, 3:28 PM CDT	Flash Flood Watch	SGF	37 hr
Jul 1, 9:53 AM CDT	Flash Flood Warning	SGF	6 hr
Jul 1, 8:16 PM CDT	Mesoscale Discussion	SPC	119 min
Jul 2, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 2, 12:11 AM CDT	Flash Flood Warning	SGF	5 hr
Jul 2, 3:09 AM CDT	Flash Flood Warning	SGF	8 hr
Jul 2, 4:49 AM CDT	Areal Flood Warning	SGF	12 hr
Jul 2, 10:56 AM CDT	Areal Flood Warning	SGF	6 hr
Jul 2, 4:50 PM CDT	Areal Flood Warning	SGF	24 hr
Jul 6, 2:55 AM CDT	Flash Flood Watch	SGF	70 hr
Jul 7, 11:21 AM CDT	Flash Flood Warning	SGF	6 hr
Jul 8, 1:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 8, 3:52 PM CDT	Mesoscale Discussion	SPC	113 min
Jul 8, 5:20 PM CDT	Tornado Warning	SGF	40 min
Jul 9, 3:50 AM CDT	Flash Flood Watch	SGF	27 hr
Jul 9, 3:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 9, 3:46 PM CDT	Flash Flood Warning	SGF	5 hr
Jul 9, 4:16 PM CDT	Special Weather Statement	SGF	59 min
Jul 9, 4:26 PM CDT	Severe Thunderstorm Warning	SGF	64 min
Jul 9, 8:22 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 9, 8:53 PM CDT	Areal Flood Warning	SGF	38 hr
Jul 10, 4:05 AM CDT	Flash Flood Warning	SGF	6 hr
Jul 10, 8:43 AM CDT	River Flood Warning	SGF	22 hr
Jul 10, 11:34 AM CDT	River Flood Warning	SGF	53 hr
Jul 11, 4:18 AM CDT	Heat Advisory	SGF	4 days
Jul 13, 6:20 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 14, 12:13 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 14, 12:40 PM CDT	Severe Thunderstorm Warning	SGF	65 min
Jul 16, 3:07 PM CDT	Heat Advisory	SGF	4 days
Jul 19, 7:47 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 20, 1:37 AM CDT	Areal Flood Advisory	SGF	6 hr
Jul 20, 2:07 AM CDT	Flash Flood Warning	SGF	6 hr
Jul 20, 3:06 AM CDT	Flash Flood Watch	SGF	9 hr
Jul 20, 7:47 AM CDT	Areal Flood Advisory	SGF	6 hr
Jul 20, 3:50 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 20, 6:23 PM CDT	Mesoscale Discussion	SPC	97 min
Jul 20, 7:21 PM CDT	Severe Thunderstorm Warning	SGF	39 min
Jul 24, 3:27 PM CDT	Heat Advisory	SGF	30 hr
Jul 25, 3:08 PM CDT	Heat Advisory	SGF	30 hr
Jul 26, 2:49 PM CDT	Special Weather Statement	SGF	26 min
Jul 26, 2:51 PM CDT	Excessive Heat Warning	SGF	3 days
Jul 26, 2:51 PM CDT	Heat Advisory	SGF	25 hr
Jul 26, 2:57 PM CDT	Severe Thunderstorm Warning	SGF	33 min
Jul 26, 3:29 PM CDT	Severe Thunderstorm Warning	SGF	46 min
Jul 26, 3:33 PM CDT	Flash Flood Warning	SGF	4 hr
Jul 26, 3:50 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 26, 7:52 PM CDT	Areal Flood Advisory	SGF	6 hr
Aug 4, 2:58 PM CDT	Flash Flood Watch	SGF	25 hr
Aug 7, 2:25 PM CDT	Heat Advisory	SGF	56 hr
Aug 8, 4:05 AM CDT	Dense Fog Advisory	SGF	6 hr
Aug 9, 3:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 10, 2:57 AM CDT	Flash Flood Warning	SGF	6 hr
Aug 10, 4:49 AM CDT	Flash Flood Warning	SGF	6 hr
Aug 10, 4:55 AM CDT	Severe Thunderstorm Warning	SGF	65 min
Aug 10, 8:54 AM CDT	Areal Flood Warning	SGF	6 hr
Aug 10, 10:39 AM CDT	Areal Flood Warning	SGF	6 hr
Oct 16, 3:34 AM CDT	Frost Advisory	SGF	28 hr
Oct 17, 3:08 AM CDT	Frost Advisory	SGF	29 hr
Oct 29, 3:01 PM CDT	Frost Advisory	SGF	17 hr
Nov 1, 2:04 AM CST	Dense Fog Advisory	SGF	7 hr
Nov 1, 11:07 PM CST	Dense Fog Advisory	SGF	11 hr
Nov 2, 8:47 PM CST	Dense Fog Advisory	SGF	13 hr
Nov 3, 11:21 PM CST	Dense Fog Advisory	SGF	7 hr
Nov 15, 1:50 PM CST	Flash Flood Watch	SGF	55 hr
Nov 17, 1:03 PM CST	Areal Flood Warning	SGF	20 hr
Nov 17, 3:19 PM CST	Mesoscale Discussion	SPC	116 min
Nov 17, 6:44 PM CST	River Flood Warning	SGF	25 hr
Nov 17, 8:58 PM CST	River Flood Warning	SGF	45 hr
Nov 18, 8:54 AM CST	Areal Flood Warning	SGF	12 hr
Nov 25, 3:15 AM CST	Flash Flood Watch	SGF	3 days
Nov 26, 7:28 PM CST	River Flood Warning	SGF	41 hr
Nov 27, 1:26 PM CST	Areal Flood Warning	SGF	11 hr
Nov 28, 12:30 AM CST	Areal Flood Warning	SGF	17 hr
Dec 7, 12:54 AM CST	Dense Fog Advisory	SGF	8 hr
Dec 11, 8:36 AM CST	Dense Fog Advisory	SGF	3 hr
Dec 14, 6:35 AM CST	Areal Flood Warning	SGF	8 hr
Dec 23, 6:13 AM CST	Mesoscale Discussion	SPC	2 hr
Dec 23, 7:27 AM CST	Severe Thunderstorm Warning	SGF	26 min
Dec 23, 9:16 AM CST	Severe Thunderstorm Warning	SGF	18 min
Dec 23, 12:42 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 24, 2:47 PM CST	Flash Flood Watch	SGF	4 days
Dec 25, 10:43 AM CST	River Flood Warning	SGF	4 days
Dec 25, 10:43 AM CST	River Flood Warning	SGF	4 days
Dec 27, 10:03 AM CST	Areal Flood Warning	SGF	24 hr
Dec 28, 1:32 AM CST	Flash Flood Warning	SGF	9 hr
Dec 28, 8:26 AM CST	Areal Flood Warning	SGF	51 hr
Dec 30, 11:35 AM CST	Areal Flood Warning	SGF	24 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	16
Tornado Warning	4
Severe Thunderstorm Watch	8
Tornado Watch	4
Mesoscale Discussion	36
Special Weather Statement	8
Flooding
Areal Flood Warning	21
Flash Flood Warning	11
River Flood Warning	8
Flash Flood Watch	11
Flood Watch	3
Areal Flood Advisory	7
Winter
Winter Storm Warning	3
Winter Storm Watch	1
Winter Weather Advisory	8
Heat
Excessive Heat Warning	1
Heat Advisory	6
Cold
Frost Advisory	5
Wind Chill Advisory	2
Fog and smoke
Dense Fog Advisory	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 2014 2016

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.