Alert archive / Missouri / Dallas County

Weather alerts in Dallas County, Missouri, 2011

197 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Dallas County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts: 197
Warnings: 64
Watches: 36
Advisories: 27
Busiest month: May44 alerts
Busiest day: April 23, 20119 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 Dallas County in 2011 had a tornado report inside them.

Dallas County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	32	16	50%	12	50%	17 min
Flash flood warnings	5	2	60%	0

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Springfield, MO: tornado warnings	71	9	87%	21	86%	21 min
NWS Springfield, MO: severe thunderstorm warnings	494	233	53%	549	74%	24 min
NWS Springfield, MO: flash flood warnings	63	35	44%	171	91%	216 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 9, 3:07 PM CST	Winter Weather Advisory	SGF	39 hr
Jan 11, 3:50 AM CST	Wind Chill Advisory	SGF	32 hr
Jan 18, 4:00 PM CST	Winter Weather Advisory	SGF	47 hr
Jan 22, 2:54 AM CST	Winter Weather Advisory	SGF	25 hr
Jan 29, 3:27 PM CST	Winter Storm Watch	SGF	37 hr
Jan 30, 4:35 PM CST	Winter Storm Warning	SGF	51 hr
Jan 31, 2:30 PM CST	Blizzard Warning	SGF	29 hr
Jan 31, 10:36 PM CST	Mesoscale Discussion	SPC	5 hr
Feb 1, 3:11 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 1, 10:36 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 1, 7:47 PM CST	Wind Chill Advisory	SGF	61 hr
Feb 1, 10:13 PM CST	Winter Weather Advisory	SGF	11 hr
Feb 4, 11:13 AM CST	Winter Weather Advisory	SGF	21 hr
Feb 7, 2:35 PM CST	Winter Weather Advisory	SGF	51 hr
Feb 9, 2:44 PM CST	Wind Chill Advisory	SGF	19 hr
Feb 24, 3:19 PM CST	Areal Flood Warning	SGF	5 hr
Feb 24, 7:56 PM CST	Areal Flood Warning	SGF	15 hr
Feb 25, 8:42 PM CST	Winter Weather Advisory	SGF	12 hr
Feb 27, 7:03 PM CST	Mesoscale Discussion	SPC	87 min
Feb 27, 7:24 PM CST	Tornado Watch	SPC	7 hr
Feb 27, 10:07 PM CST	Tornado Warning	SGF	38 min
Feb 27, 10:38 PM CST	Severe Thunderstorm Warning	SGF	52 min
Mar 4, 11:52 AM CST	Mesoscale Discussion	SPC	2 hr
Mar 4, 1:33 PM CST	Severe Thunderstorm Watch	SPC	5 hr
Mar 4, 3:55 PM CST	Mesoscale Discussion	SPC	95 min
Mar 8, 11:41 AM CST	Areal Flood Advisory	SGF	12 hr
Mar 14, 3:03 AM CDT	Winter Weather Advisory	SGF	19 hr
Mar 14, 8:42 AM CDT	Areal Flood Warning	SGF	10 hr
Mar 19, 7:16 PM CDT	Areal Flood Advisory	SGF	6 hr
Mar 26, 4:06 AM CDT	Freeze Watch	SGF	10 hr
Mar 26, 2:30 PM CDT	Freeze Warning	SGF	44 hr
Apr 2, 3:29 PM CDT	Wind Advisory	SGF	29 hr
Apr 3, 10:56 PM CDT	High Wind Warning	SGF	2 hr
Apr 3, 11:02 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 4, 1:29 AM CDT	Mesoscale Discussion	SPC	91 min
Apr 4, 3:18 PM CDT	Freeze Warning	SGF	17 hr
Apr 6, 5:22 AM CDT	Red Flag Warning	SGF	13 hr
Apr 8, 8:32 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 8, 9:01 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 8, 11:26 PM CDT	Mesoscale Discussion	SPC	94 min
Apr 9, 1:52 AM CDT	Mesoscale Discussion	SPC	53 min
Apr 10, 10:01 AM CDT	Wind Advisory	SGF	9 hr
Apr 10, 5:03 PM CDT	Mesoscale Discussion	SPC	57 min
Apr 10, 7:28 PM CDT	Tornado Watch	SPC	8 hr
Apr 10, 8:52 PM CDT	Mesoscale Discussion	SPC	53 min
Apr 10, 11:11 PM CDT	Severe Thunderstorm Warning	SGF	34 min
Apr 19, 12:40 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 19, 1:00 PM CDT	Tornado Watch	SPC	10 hr
Apr 19, 5:47 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 21, 1:22 PM CDT	Flash Flood Watch	SGF	6 days
Apr 21, 2:35 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 22, 1:04 PM CDT	Mesoscale Discussion	SPC	116 min
Apr 22, 3:34 PM CDT	Tornado Watch	SPC	6 hr
Apr 22, 4:56 PM CDT	Severe Thunderstorm Warning	SGF	38 min
Apr 22, 5:21 PM CDT	Mesoscale Discussion	SPC	114 min
Apr 22, 5:45 PM CDT	Severe Thunderstorm Warning	SGF	60 min
Apr 22, 7:46 PM CDT	Severe Thunderstorm Warning	SGF	25 min
Apr 22, 11:04 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 23, 2:33 AM CDT	Mesoscale Discussion	SPC	87 min
Apr 23, 3:29 AM CDT	Flash Flood Warning	SGF	6 hr
Apr 23, 3:34 AM CDT	Severe Thunderstorm Warning	SGF	45 min
Apr 23, 9:01 AM CDT	Areal Flood Warning	SGF	5 hr
Apr 23, 1:57 PM CDT	Areal Flood Warning	SGF	4 hr
Apr 23, 4:20 PM CDT	Severe Thunderstorm Warning	SGF	21 min
Apr 23, 5:55 PM CDT	Areal Flood Warning	SGF	6 hr
Apr 24, 7:03 AM CDT	Areal Flood Warning	SGF	7 hr
Apr 24, 1:51 PM CDT	Areal Flood Warning	SGF	17 hr
Apr 25, 6:57 AM CDT	Areal Flood Warning	SGF	24 hr
Apr 25, 7:47 PM CDT	Flash Flood Warning	SGF	6 hr
Apr 26, 2:05 AM CDT	Areal Flood Warning	SGF	37 hr
May 6, 1:14 AM CDT	Dense Fog Advisory	SGF	8 hr
May 7, 3:40 AM CDT	Mesoscale Discussion	SPC	95 min
May 12, 3:17 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 12, 5:24 PM CDT	Severe Thunderstorm Warning	SGF	51 min
May 12, 6:00 PM CDT	Severe Thunderstorm Warning	SGF	60 min
May 12, 6:56 PM CDT	Severe Thunderstorm Warning	SGF	37 min
May 12, 7:31 PM CDT	Severe Thunderstorm Warning	SGF	19 min
May 12, 7:52 PM CDT	Severe Thunderstorm Warning	SGF	38 min
May 12, 8:30 PM CDT	Severe Thunderstorm Warning	SGF	45 min
May 12, 8:34 PM CDT	Severe Thunderstorm Warning	SGF	36 min
May 12, 11:13 PM CDT	Areal Flood Advisory	SGF	12 hr
May 13, 5:03 PM CDT	Flash Flood Warning	SGF	3 hr
May 19, 7:10 AM CDT	Flash Flood Warning	SGF	3 hr
May 19, 9:55 AM CDT	Areal Flood Warning	SGF	8 hr
May 20, 11:05 AM CDT	Flash Flood Watch	SGF	40 hr
May 20, 2:54 PM CDT	Areal Flood Warning	SGF	6 hr
May 22, 1:06 PM CDT	Mesoscale Discussion	SPC	114 min
May 22, 1:27 PM CDT	Tornado Watch	SPC	8 hr
May 22, 3:48 PM CDT	Mesoscale Discussion	SPC	117 min
May 22, 6:10 PM CDT	Mesoscale Discussion	SPC	65 min
May 22, 7:52 PM CDT	Mesoscale Discussion	SPC	53 min
May 23, 3:36 AM CDT	Flash Flood Watch	SGF	63 hr
May 23, 5:07 AM CDT	Mesoscale Discussion	SPC	113 min
May 23, 6:08 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 23, 7:38 AM CDT	Mesoscale Discussion	SPC	97 min
May 23, 9:43 AM CDT	Severe Thunderstorm Warning	SGF	18 min
May 23, 9:55 AM CDT	Severe Thunderstorm Warning	SGF	36 min
May 23, 10:34 AM CDT	Mesoscale Discussion	SPC	86 min
May 23, 12:12 PM CDT	Mesoscale Discussion	SPC	93 min
May 23, 10:17 PM CDT	Wind Advisory	SGF	6 hr
May 24, 7:26 PM CDT	Tornado Watch	SPC	7 hr
May 24, 11:24 PM CDT	Mesoscale Discussion	SPC	96 min
May 24, 11:47 PM CDT	Special Weather Statement	SGF	43 min
May 25, 12:25 AM CDT	Special Weather Statement	SGF	35 min
May 25, 1:22 AM CDT	Tornado Watch	SPC	7 hr
May 25, 9:54 AM CDT	Mesoscale Discussion	SPC	96 min
May 25, 10:37 AM CDT	Tornado Watch	SPC	7 hr
May 25, 12:58 PM CDT	Severe Thunderstorm Warning	SGF	62 min
May 25, 1:28 PM CDT	Mesoscale Discussion	SPC	92 min
May 28, 4:11 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 28, 5:04 AM CDT	Special Weather Statement	SGF	41 min
May 28, 5:41 AM CDT	Severe Thunderstorm Warning	SGF	49 min
May 28, 6:06 AM CDT	Mesoscale Discussion	SPC	84 min
May 28, 6:12 AM CDT	Special Weather Statement	SGF	33 min
Jun 10, 4:18 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 10, 4:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 10, 7:47 PM CDT	Mesoscale Discussion	SPC	58 min
Jun 10, 10:56 PM CDT	Mesoscale Discussion	SPC	94 min
Jun 13, 2:41 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 13, 5:16 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 13, 6:47 AM CDT	Special Weather Statement	SGF	43 min
Jun 13, 7:12 AM CDT	Severe Thunderstorm Warning	SGF	22 min
Jun 14, 9:11 PM CDT	Mesoscale Discussion	SPC	64 min
Jun 15, 12:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 15, 1:09 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 15, 1:16 AM CDT	Special Weather Statement	SGF	29 min
Jun 17, 6:44 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 17, 8:19 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 18, 2:44 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 18, 7:41 PM CDT	Mesoscale Discussion	SPC	94 min
Jun 18, 8:26 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 18, 11:05 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 18, 11:27 PM CDT	Severe Thunderstorm Warning	SGF	63 min
Jun 18, 11:59 PM CDT	Severe Thunderstorm Warning	SGF	61 min
Jun 19, 12:07 AM CDT	Tornado Warning	SGF	38 min
Jun 19, 12:36 AM CDT	Severe Thunderstorm Warning	SGF	54 min
Jun 19, 2:14 AM CDT	Mesoscale Discussion	SPC	61 min
Jun 19, 3:17 AM CDT	Special Weather Statement	SGF	28 min
Jun 21, 12:14 AM CDT	Special Weather Statement	SGF	61 min
Jun 25, 7:07 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 25, 7:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 26, 10:13 AM CDT	Mesoscale Discussion	SPC	62 min
Jun 27, 3:54 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 28, 2:19 PM CDT	Excessive Heat Watch	SGF	38 hr
Jun 30, 3:58 AM CDT	Heat Advisory	SGF	63 hr
Jul 3, 6:04 PM CDT	Severe Thunderstorm Warning	SGF	56 min
Jul 5, 12:02 AM CDT	Severe Thunderstorm Warning	SGF	42 min
Jul 6, 1:38 PM CDT	Mesoscale Discussion	SPC	97 min
Jul 7, 1:54 PM CDT	Mesoscale Discussion	SPC	66 min
Jul 7, 5:03 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 7:58 PM CDT	Mesoscale Discussion	SPC	92 min
Jul 8, 3:38 PM CDT	Heat Advisory	SGF	4 days
Jul 12, 4:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jul 18, 3:45 AM CDT	Excessive Heat Watch	SGF	12 hr
Jul 18, 3:37 PM CDT	Heat Advisory	SGF	15 days
Jul 23, 4:57 PM CDT	Severe Thunderstorm Warning	SGF	35 min
Jul 30, 4:17 AM CDT	Excessive Heat Warning	SGF	9 days
Jul 30, 12:35 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 4, 2:10 AM CDT	Mesoscale Discussion	SPC	80 min
Aug 4, 3:28 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 4, 4:22 AM CDT	Severe Thunderstorm Warning	SGF	38 min
Aug 4, 4:55 AM CDT	Severe Thunderstorm Warning	SGF	50 min
Aug 4, 5:35 AM CDT	Severe Thunderstorm Warning	SGF	40 min
Aug 4, 6:04 AM CDT	Mesoscale Discussion	SPC	86 min
Aug 7, 3:16 PM CDT	Mesoscale Discussion	SPC	119 min
Aug 7, 3:29 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 7, 5:09 PM CDT	Severe Thunderstorm Warning	SGF	66 min
Aug 7, 5:20 PM CDT	Mesoscale Discussion	SPC	115 min
Aug 7, 5:29 PM CDT	Severe Thunderstorm Warning	SGF	61 min
Aug 7, 6:03 PM CDT	Severe Thunderstorm Warning	SGF	57 min
Aug 7, 6:27 PM CDT	Severe Thunderstorm Warning	SGF	63 min
Aug 8, 12:46 AM CDT	Mesoscale Discussion	SPC	59 min
Aug 8, 1:09 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Aug 8, 2:32 AM CDT	Special Weather Statement	SGF	28 min
Aug 8, 12:09 PM CDT	Flash Flood Warning	SGF	6 hr
Aug 12, 1:44 PM CDT	Mesoscale Discussion	SPC	91 min
Aug 18, 11:46 PM CDT	Mesoscale Discussion	SPC	59 min
Aug 19, 12:02 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 19, 1:38 AM CDT	Mesoscale Discussion	SPC	67 min
Aug 19, 4:08 AM CDT	Mesoscale Discussion	SPC	67 min
Aug 20, 2:28 AM CDT	Mesoscale Discussion	SPC	62 min
Aug 20, 3:56 PM CDT	Mesoscale Discussion	SPC	64 min
Aug 23, 4:15 AM CDT	Heat Advisory	SGF	39 hr
Sep 1, 3:37 AM CDT	Heat Advisory	SGF	39 hr
Oct 14, 3:45 PM CDT	Fire Weather Watch	SGF	36 hr
Oct 18, 3:52 PM CDT	Freeze Watch	SGF	12 hr
Oct 19, 3:50 AM CDT	Freeze Warning	SGF	29 hr
Oct 20, 4:10 AM CDT	Frost Advisory	SGF	29 hr
Oct 20, 1:37 PM CDT	Freeze Warning	SGF	19 hr
Oct 27, 3:45 AM CDT	Frost Advisory	SGF	29 hr
Oct 28, 3:39 AM CDT	Freeze Warning	SGF	29 hr
Nov 8, 1:17 AM CST	Mesoscale Discussion	SPC	118 min
Nov 9, 2:25 PM CST	Freeze Warning	SGF	18 hr
Nov 11, 3:24 PM CST	Wind Advisory	SGF	27 hr
Nov 17, 3:17 PM CST	Red Flag Warning	SGF	27 hr
Nov 24, 12:41 AM CST	Dense Fog Advisory	SGF	8 hr
Dec 31, 3:45 AM CST	Red Flag Warning	SGF	14 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	32
Tornado Warning	2
Severe Thunderstorm Watch	19
Tornado Watch	8
Mesoscale Discussion	61
Special Weather Statement	9
Flooding
Areal Flood Warning	12
Flash Flood Warning	5
Flash Flood Watch	3
Areal Flood Advisory	3
Winter
Blizzard Warning	1
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	8
Heat
Excessive Heat Warning	1
Excessive Heat Watch	2
Heat Advisory	5
Cold
Freeze Warning	6
Freeze Watch	2
Frost Advisory	2
Wind Chill Advisory	3
Wind and dust
High Wind Warning	1
Wind Advisory	4
Fire
Red Flag Warning	3
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2010 2012

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.