Weather alerts in Polk County, Missouri, 2015

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

Polk County and its neighbors

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

Alerts: 204
Warnings: 75
Watches: 29
Advisories: 43
Busiest month: July44 alerts
Busiest day: July 2, 201511 alerts

Over time

By month

Warning verification

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

2 of 2 tornado warnings covering Polk County in 2015 had a tornado report inside them; 4 of 4 tornado reports fell inside a warning, on average 12 minutes after it went out.

Polk County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	2	0%	4	100%	12 min
Severe thunderstorm warnings	35	24	31%	25	84%	19 min
Flash flood warnings	11	9	18%	14	100%	110 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 1, 11:44 PM CST	Winter Weather Advisory	SGF	10 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 14, 3:31 PM CST	Winter Weather Advisory	SGF	16 hr
Jan 18, 1:12 PM CST	Red Flag Warning	SGF	5 hr
Jan 20, 9:43 PM CST	Dense Fog Advisory	SGF	12 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, 6:37 PM CST	Mesoscale Discussion	SPC	6 hr
Feb 27, 2:39 PM CST	Winter Weather Advisory	SGF	47 hr
Feb 28, 6:08 PM CST	Winter Storm Warning	SGF	16 hr
Mar 3, 3:34 PM CST	Winter Weather Advisory	SGF	32 hr
Mar 10, 10:53 PM CDT	Dense Fog Advisory	SGF	13 hr
Mar 24, 2:05 PM CDT	Mesoscale Discussion	SPC	85 min
Mar 24, 2:59 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 24, 5:24 PM CDT	Special Weather Statement	SGF	36 min
Mar 24, 5:30 PM CDT	Severe Thunderstorm Warning	SGF	30 min
Mar 24, 5:30 PM CDT	Mesoscale Discussion	SPC	90 min
Mar 24, 5:55 PM CDT	Severe Thunderstorm Warning	SGF	35 min
Mar 25, 10:56 AM CDT	Mesoscale Discussion	SPC	3 hr
Mar 25, 12:51 PM CDT	Severe Thunderstorm Warning	SGF	54 min
Apr 1, 12:39 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 1, 4:20 PM CDT	Severe Thunderstorm Warning	SGF	55 min
Apr 2, 3:14 AM CDT	Flood Watch	SGF	27 hr
Apr 2, 5:22 AM CDT	Mesoscale Discussion	SPC	113 min
Apr 2, 4:47 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 2, 7:02 PM CDT	Tornado Watch	SPC	8 hr
Apr 2, 8:15 PM CDT	Severe Thunderstorm Warning	SGF	45 min
Apr 3, 1:16 AM CDT	Mesoscale Discussion	SPC	59 min
Apr 3, 1:52 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 3, 8:34 AM CDT	Areal Flood Warning	SGF	6 hr
Apr 3, 11:13 AM CDT	Frost Advisory	SGF	22 hr
Apr 7, 5:03 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 7, 8:24 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 8, 6:17 AM CDT	Mesoscale Discussion	SPC	88 min
Apr 8, 6:39 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 8, 9:33 AM CDT	Mesoscale Discussion	SPC	57 min
Apr 8, 2:21 PM CDT	Mesoscale Discussion	SPC	114 min
Apr 8, 2:47 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 9, 1:15 PM CDT	Wind Advisory	SGF	4 hr
Apr 9, 1:32 PM CDT	Mesoscale Discussion	SPC	118 min
Apr 9, 2:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 16, 5:15 AM CDT	Dense Fog Advisory	SGF	4 hr
Apr 21, 2:36 PM CDT	Mesoscale Discussion	SPC	114 min
Apr 21, 2:54 PM CDT	Special Weather Statement	SGF	51 min
Apr 21, 3:23 PM CDT	Severe Thunderstorm Warning	SGF	37 min
Apr 21, 4:10 PM CDT	Special Weather Statement	SGF	50 min
Apr 21, 4:16 PM CDT	Severe Thunderstorm Warning	SGF	44 min
Apr 21, 5:02 PM CDT	Special Weather Statement	SGF	43 min
Apr 21, 6:09 PM CDT	Severe Thunderstorm Warning	SGF	36 min
May 10, 11:00 AM CDT	Mesoscale Discussion	SPC	3 hr
May 10, 12:38 PM CDT	Special Weather Statement	SGF	37 min
May 10, 1:47 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 14, 3:44 PM CDT	Mesoscale Discussion	SPC	3 hr
May 15, 6:40 PM CDT	Mesoscale Discussion	SPC	2 hr
May 16, 10:21 PM CDT	Tornado Watch	SPC	5 hr
May 17, 1:43 AM CDT	Mesoscale Discussion	SPC	92 min
May 17, 1:46 AM CDT	Tornado Warning	SGF	29 min
May 17, 1:56 AM CDT	Severe Thunderstorm Warning	SGF	64 min
May 17, 2:08 AM CDT	Severe Thunderstorm Warning	SGF	52 min
May 17, 2:15 AM CDT	Tornado Warning	SGF	25 min
May 22, 2:57 PM CDT	Flash Flood Watch	SGF	61 hr
May 24, 1:18 PM CDT	Tornado Watch	SPC	6 hr
May 25, 7:47 PM CDT	Tornado Watch	SPC	5 hr
May 27, 1:52 AM CDT	Special Weather Statement	SGF	23 min
May 27, 3:34 AM CDT	Areal Flood Advisory	SGF	6 hr
May 27, 3:53 AM CDT	Mesoscale Discussion	SPC	2 hr
May 28, 10:39 AM CDT	Flash Flood Watch	SGF	50 hr
May 28, 4:39 PM CDT	Areal Flood Advisory	SGF	4 hr
May 29, 8:28 PM CDT	Areal Flood Advisory	SGF	15 hr
May 29, 9:00 PM CDT	Areal Flood Warning	SGF	12 hr
May 30, 8:59 AM CDT	Areal Flood Warning	SGF	12 hr
May 30, 8:46 PM CDT	Areal Flood Advisory	SGF	15 hr
May 31, 11:37 AM CDT	Areal Flood Advisory	SGF	24 hr
Jun 5, 7:47 AM CDT	Special Weather Statement	SGF	58 min
Jun 5, 3:18 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 12, 3:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jun 13, 3:47 PM CDT	Special Weather Statement	SGF	28 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 16, 6:59 PM CDT	Flash Flood Warning	SGF	6 hr
Jun 17, 12:57 AM CDT	Areal Flood Warning	SGF	9 hr
Jun 17, 10:01 AM CDT	Areal Flood Warning	SGF	11 hr
Jun 17, 9:31 PM CDT	Areal Flood Advisory	SGF	5 hr
Jun 18, 2:50 AM CDT	Areal Flood Advisory	SGF	7 hr
Jun 18, 7:13 PM CDT	Flash Flood Warning	SGF	4 hr
Jun 18, 10:58 PM CDT	Areal Flood Warning	SGF	6 hr
Jun 19, 5:00 AM CDT	Areal Flood Warning	SGF	6 hr
Jun 19, 10:51 AM CDT	Areal Flood Warning	SGF	24 hr
Jun 26, 1:46 AM CDT	Mesoscale Discussion	SPC	59 min
Jun 26, 2:18 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 26, 3:26 AM CDT	Severe Thunderstorm Warning	SGF	64 min
Jun 26, 4:10 AM CDT	Severe Thunderstorm Warning	SGF	65 min
Jun 26, 4:21 AM CDT	Mesoscale Discussion	SPC	84 min
Jun 28, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 30, 3:28 PM CDT	Flash Flood Watch	SGF	37 hr
Jul 1, 3:33 AM CDT	Severe Thunderstorm Warning	SGF	42 min
Jul 1, 3:54 AM CDT	Severe Thunderstorm Warning	SGF	51 min
Jul 1, 7:24 AM CDT	Areal Flood Advisory	SGF	6 hr
Jul 1, 8:21 AM CDT	Flash Flood Warning	SGF	6 hr
Jul 1, 1:58 PM CDT	Areal Flood Warning	SGF	5 hr
Jul 1, 3:47 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 1, 6:03 PM CDT	Tornado Watch	SPC	6 hr
Jul 1, 7:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 1, 10:48 PM CDT	Severe Thunderstorm Warning	SGF	57 min
Jul 1, 11:06 PM CDT	Mesoscale Discussion	SPC	54 min
Jul 1, 11:07 PM CDT	Flash Flood Warning	SGF	6 hr
Jul 1, 11:50 PM CDT	Severe Thunderstorm Warning	SGF	55 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, 12:37 AM CDT	Special Weather Statement	SGF	23 min
Jul 2, 12:45 AM CDT	Severe Thunderstorm Warning	SGF	49 min
Jul 2, 4:49 AM CDT	Areal Flood Warning	SGF	12 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 6, 3:26 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 6, 6:20 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 8, 11:57 AM CDT	Areal Flood Warning	SGF	47 hr
Jul 9, 3:50 AM CDT	Flash Flood Watch	SGF	27 hr
Jul 11, 4:18 AM CDT	Heat Advisory	SGF	4 days
Jul 11, 10:56 PM CDT	Areal Flood Advisory	SGF	12 hr
Jul 14, 10:50 AM CDT	Severe Thunderstorm Warning	SGF	40 min
Jul 14, 11:08 AM CDT	Severe Thunderstorm Warning	SGF	52 min
Jul 15, 12:35 PM CDT	Severe Thunderstorm Warning	SGF	25 min
Jul 15, 1:02 PM CDT	Severe Thunderstorm Warning	SGF	43 min
Jul 15, 1:33 PM CDT	Severe Thunderstorm Warning	SGF	42 min
Jul 15, 2:10 PM CDT	Severe Thunderstorm Warning	SGF	65 min
Jul 15, 7:01 PM CDT	Severe Thunderstorm Warning	SGF	44 min
Jul 16, 3:07 PM CDT	Heat Advisory	SGF	4 days
Jul 20, 3:50 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 23, 3:12 PM CDT	Heat Advisory	SGF	30 hr
Jul 24, 3:27 PM CDT	Heat Advisory	SGF	30 hr
Jul 24, 7:40 PM CDT	Severe Thunderstorm Warning	SGF	50 min
Jul 24, 7:49 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jul 24, 7:51 PM CDT	Mesoscale Discussion	SPC	24 min
Jul 24, 8:29 PM CDT	Severe Thunderstorm Warning	SGF	31 min
Jul 24, 9:15 PM CDT	Mesoscale Discussion	SPC	60 min
Jul 25, 3:08 PM CDT	Heat Advisory	SGF	30 hr
Jul 26, 2:51 PM CDT	Excessive Heat Warning	SGF	3 days
Jul 26, 2:51 PM CDT	Heat Advisory	SGF	25 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, 9:12 AM CDT	Severe Thunderstorm Warning	SGF	48 min
Aug 8, 9:59 AM CDT	Severe Thunderstorm Warning	SGF	16 min
Aug 9, 3:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 10, 2:09 AM CDT	Special Weather Statement	SGF	51 min
Aug 10, 2:18 AM CDT	Severe Thunderstorm Warning	SGF	42 min
Aug 10, 6:04 AM CDT	Special Weather Statement	SGF	41 min
Aug 18, 5:15 PM CDT	Mesoscale Discussion	SPC	90 min
Aug 18, 7:17 PM CDT	Mesoscale Discussion	SPC	88 min
Aug 23, 3:22 AM CDT	Special Weather Statement	SGF	38 min
Aug 23, 3:48 AM CDT	Severe Thunderstorm Warning	SGF	42 min
Aug 23, 4:22 AM CDT	Severe Thunderstorm Warning	SGF	53 min
Sep 8, 11:43 AM CDT	Flash Flood Warning	SGF	5 hr
Sep 10, 3:58 PM CDT	Mesoscale Discussion	SPC	3 hr
Sep 11, 12:18 AM CDT	Special Weather Statement	SGF	57 min
Sep 11, 12:53 AM CDT	Mesoscale Discussion	SPC	67 min
Sep 18, 7:03 PM CDT	Mesoscale Discussion	SPC	87 min
Sep 18, 10:17 PM CDT	Special Weather Statement	SGF	43 min
Sep 29, 9:06 AM CDT	Dense Fog Advisory	SGF	2 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 5, 1:16 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Nov 5, 3:06 PM CST	Severe Thunderstorm Warning	SGF	39 min
Nov 5, 3:17 PM CST	Mesoscale Discussion	SPC	118 min
Nov 5, 3:39 PM CST	Severe Thunderstorm Warning	SGF	30 min
Nov 5, 5:46 PM CST	Mesoscale Discussion	SPC	59 min
Nov 10, 3:15 PM CST	Wind Advisory	SGF	37 hr
Nov 11, 1:21 PM CST	High Wind Warning	SGF	5 hr
Nov 15, 1:50 PM CST	Flash Flood Watch	SGF	55 hr
Nov 17, 6:13 AM CST	Severe Thunderstorm Warning	SGF	47 min
Nov 17, 8:40 AM CST	Flash Flood Warning	SGF	6 hr
Nov 17, 9:17 AM CST	Areal Flood Warning	SGF	12 hr
Nov 17, 2:26 PM CST	Areal Flood Warning	SGF	7 hr
Nov 17, 8:56 PM CST	Areal Flood Warning	SGF	12 hr
Nov 25, 3:15 AM CST	Flash Flood Watch	SGF	3 days
Nov 27, 8:42 AM CST	Areal Flood Warning	SGF	12 hr
Nov 27, 8:04 PM CST	Areal Flood Warning	SGF	12 hr
Dec 12, 9:02 PM CST	Wind Advisory	SGF	13 hr
Dec 21, 2:07 AM CST	Severe Thunderstorm Warning	SGF	23 min
Dec 22, 3:43 AM CST	Dense Fog Advisory	SGF	6 hr
Dec 23, 12:47 PM CST	Wind Advisory	SGF	5 hr
Dec 24, 2:47 PM CST	Flash Flood Watch	SGF	4 days
Dec 26, 9:04 AM CST	Special Weather Statement	SGF	41 min
Dec 26, 11:12 AM CST	Special Weather Statement	SGF	48 min
Dec 26, 1:54 PM CST	Flash Flood Warning	SGF	5 hr
Dec 26, 4:43 PM CST	Flash Flood Warning	SGF	10 hr
Dec 26, 5:03 PM CST	Special Weather Statement	SGF	42 min
Dec 26, 6:22 PM CST	Flash Flood Warning	SGF	6 hr
Dec 26, 10:48 PM CST	Areal Flood Warning	SGF	15 hr
Dec 27, 12:13 AM CST	Flash Flood Warning	SGF	4 hr
Dec 27, 2:24 AM CST	Areal Flood Warning	SGF	33 hr
Dec 27, 1:45 PM CST	Areal Flood Warning	SGF	24 hr
Dec 28, 3:30 AM CST	Winter Weather Advisory	SGF	15 hr
Dec 28, 8:31 AM CST	Areal Flood Warning	SGF	51 hr
Dec 30, 11:32 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	35
Tornado Warning	2
Severe Thunderstorm Watch	13
Tornado Watch	5
Mesoscale Discussion	40
Special Weather Statement	17
Flooding
Areal Flood Warning	22
Flash Flood Warning	11
Flash Flood Watch	10
Flood Watch	1
Areal Flood Advisory	9
Winter
Winter Storm Warning	2
Winter Weather Advisory	11
Heat
Excessive Heat Warning	1
Heat Advisory	7
Cold
Frost Advisory	2
Wind Chill Advisory	2
Wind and dust
High Wind Warning	1
Wind Advisory	4
Fire
Red Flag Warning	1
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.