Weather alerts in Marion County, Texas, 2010

117 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Marion County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 117
Warnings: 33
Watches: 19
Advisories: 38
Busiest month: March16 alerts
Busiest day: October 24, 20107 alerts

Over time

By month

Warning verification

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

1 of 4 tornado warnings covering Marion County in 2010 had a tornado report inside them.

Marion County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	1	75%	0
Severe thunderstorm warnings	16	11	31%	3	33%	7 min
Flash flood warnings	0			0

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Shreveport, LA: tornado warnings	77	20	74%	46	85%	19 min
NWS Shreveport, LA: severe thunderstorm warnings	288	152	47%	358	77%	21 min
NWS Shreveport, LA: flash flood warnings	14	11	21%	39	79%	166 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 6, 3:57 AM CST	Winter Weather Advisory	SHV	29 hr
Jan 6, 6:54 AM CST	Lake Wind Advisory	SHV	33 hr
Jan 7, 5:59 AM CST	Hard Freeze Warning	SHV	29 hr
Jan 7, 4:19 PM CST	Wind Chill Advisory	SHV	19 hr
Jan 8, 5:01 AM CST	Hard Freeze Warning	SHV	30 hr
Jan 9, 4:24 AM CST	Hard Freeze Warning	SHV	31 hr
Jan 20, 3:52 PM CST	Tornado Watch	SPC	6 hr
Jan 20, 4:24 PM CST	Severe Thunderstorm Warning	SHV	36 min
Jan 20, 5:01 PM CST	Severe Thunderstorm Warning	SHV	29 min
Jan 20, 6:42 PM CST	Mesoscale Discussion	SPC	93 min
Jan 20, 6:55 PM CST	Tornado Warning	SHV	50 min
Jan 20, 7:21 PM CST	Severe Thunderstorm Warning	SHV	39 min
Jan 20, 9:20 PM CST	Mesoscale Discussion	SPC	55 min
Jan 29, 9:20 AM CST	River Flood Warning	SHV	3 days
Feb 9, 6:06 PM CST	River Flood Warning	SHV	7 days
Feb 10, 3:38 PM CST	Winter Storm Watch	SHV	14 hr
Feb 11, 5:32 AM CST	Winter Weather Advisory	SHV	3 hr
Feb 11, 8:46 AM CST	Winter Storm Warning	SHV	26 hr
Feb 11, 12:21 PM CST	Mesoscale Discussion	SPC	4 hr
Feb 11, 6:56 PM CST	Mesoscale Discussion	SPC	5 hr
Feb 15, 3:29 AM CST	Lake Wind Advisory	SHV	14 hr
Feb 22, 3:57 PM CST	Winter Weather Advisory	SHV	32 hr
Mar 9, 12:01 AM CST	Mesoscale Discussion	SPC	89 min
Mar 10, 11:39 AM CST	Severe Thunderstorm Watch	SPC	5 hr
Mar 10, 3:26 PM CST	Tornado Watch	SPC	7 hr
Mar 10, 4:00 PM CST	Severe Thunderstorm Watch	SPC	4 hr
Mar 10, 5:05 PM CST	Severe Thunderstorm Warning	SHV	55 min
Mar 10, 5:48 PM CST	Mesoscale Discussion	SPC	57 min
Mar 10, 6:02 PM CST	Severe Thunderstorm Warning	SHV	43 min
Mar 10, 6:05 PM CST	Severe Thunderstorm Warning	SHV	55 min
Mar 10, 6:49 PM CST	Severe Thunderstorm Warning	SHV	56 min
Mar 10, 7:02 PM CST	Severe Thunderstorm Warning	SHV	58 min
Mar 20, 3:13 AM CDT	Winter Storm Warning	SHV	37 hr
Mar 20, 3:13 AM CDT	Winter Weather Advisory	SHV	37 hr
Mar 20, 3:19 AM CDT	Lake Wind Advisory	SHV	40 hr
Mar 24, 9:27 PM CDT	Lake Wind Advisory	SHV	22 hr
Mar 26, 3:05 PM CDT	Lake Wind Advisory	SHV	33 hr
Mar 30, 3:43 PM CDT	Lake Wind Advisory	SHV	27 hr
Apr 2, 8:01 PM CDT	Mesoscale Discussion	SPC	89 min
Apr 5, 10:06 PM CDT	Lake Wind Advisory	SHV	26 hr
Apr 7, 1:29 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 7, 1:55 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 23, 8:28 AM CDT	Mesoscale Discussion	SPC	62 min
Apr 23, 9:53 AM CDT	Tornado Watch	SPC	7 hr
Apr 23, 2:50 PM CDT	Mesoscale Discussion	SPC	115 min
Apr 23, 5:24 PM CDT	Mesoscale Discussion	SPC	36 min
Apr 23, 5:41 PM CDT	Tornado Watch	SPC	9 hr
Apr 24, 1:20 AM CDT	Mesoscale Discussion	SPC	25 min
Apr 24, 1:50 AM CDT	Tornado Watch	SPC	8 hr
Apr 24, 3:06 AM CDT	Lake Wind Advisory	SHV	18 hr
Apr 24, 3:14 AM CDT	Severe Thunderstorm Warning	SHV	46 min
Apr 25, 5:01 AM CDT	Lake Wind Advisory	SHV	14 hr
Apr 28, 4:06 PM CDT	Lake Wind Advisory	SHV	27 hr
Apr 30, 5:07 AM CDT	Lake Wind Advisory	SHV	14 hr
May 1, 3:18 PM CDT	Tornado Watch PDS	SPC	7 hr
May 1, 5:43 PM CDT	Mesoscale Discussion	SPC	62 min
May 1, 7:11 PM CDT	Mesoscale Discussion	SPC	64 min
May 1, 8:20 PM CDT	Severe Thunderstorm Warning	SHV	40 min
May 1, 8:31 PM CDT	Mesoscale Discussion	SPC	44 min
May 10, 3:29 AM CDT	Lake Wind Advisory	SHV	18 hr
May 11, 3:25 AM CDT	Lake Wind Advisory	SHV	16 hr
May 12, 3:41 AM CDT	Lake Wind Advisory	SHV	15 hr
May 14, 4:42 PM CDT	Mesoscale Discussion	SPC	63 min
May 14, 4:59 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 20, 10:28 AM CDT	Severe Thunderstorm Watch	SPC	12 hr
May 20, 2:03 PM CDT	Severe Thunderstorm Warning	SHV	57 min
May 20, 2:57 PM CDT	Severe Thunderstorm Warning	SHV	48 min
Jun 9, 11:15 AM CDT	Mesoscale Discussion	SPC	90 min
Jun 9, 12:37 PM CDT	Severe Thunderstorm Warning	SHV	53 min
Jun 9, 1:07 PM CDT	Tornado Watch	SPC	6 hr
Jun 9, 4:35 PM CDT	Flash Flood Watch	SHV	35 hr
Jun 11, 9:02 AM CDT	River Flood Warning	SHV	35 hr
Jun 15, 10:18 AM CDT	River Flood Warning	SHV	72 hr
Jun 20, 5:30 AM CDT	Heat Advisory	SHV	62 hr
Jul 6, 3:20 PM CDT	Flash Flood Watch	SHV	61 hr
Jul 7, 4:46 PM CDT	Areal Flood Advisory	SHV	119 min
Jul 10, 4:49 PM CDT	Areal Flood Warning	SHV	116 min
Jul 14, 3:42 AM CDT	Heat Advisory	SHV	63 hr
Jul 21, 4:03 PM CDT	Heat Advisory	SHV	27 hr
Jul 25, 11:11 PM CDT	Severe Thunderstorm Warning	SHV	33 min
Jul 30, 3:40 PM CDT	Heat Advisory	SHV	4 days
Aug 1, 4:52 AM CDT	Excessive Heat Warning	SHV	5 days
Aug 4, 3:56 PM CDT	Heat Advisory	SHV	51 hr
Aug 5, 7:29 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 7, 3:38 PM CDT	Heat Advisory	SHV	9 days
Aug 14, 4:10 PM CDT	Excessive Heat Warning	SHV	28 hr
Aug 15, 5:39 AM CDT	Heat Advisory	SHV	37 hr
Aug 15, 1:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 18, 3:38 PM CDT	Heat Advisory	SHV	5 days
Aug 23, 1:43 PM CDT	Mesoscale Discussion	SPC	92 min
Oct 23, 5:12 PM CDT	Tornado Watch	SPC	4 hr
Oct 23, 7:21 PM CDT	Mesoscale Discussion	SPC	54 min
Oct 23, 7:26 PM CDT	Severe Thunderstorm Warning	SHV	49 min
Oct 23, 7:32 PM CDT	Tornado Warning	SHV	28 min
Oct 24, 12:51 PM CDT	Mesoscale Discussion	SPC	84 min
Oct 24, 1:51 PM CDT	Tornado Watch	SPC	8 hr
Oct 24, 3:36 PM CDT	Mesoscale Discussion	SPC	84 min
Oct 24, 6:12 PM CDT	Mesoscale Discussion	SPC	63 min
Oct 24, 7:58 PM CDT	Tornado Warning	SHV	47 min
Oct 24, 8:46 PM CDT	Tornado Warning	SHV	44 min
Oct 24, 9:30 PM CDT	Severe Thunderstorm Warning	SHV	60 min
Oct 24, 9:57 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Oct 25, 4:49 AM CDT	Lake Wind Advisory	SHV	23 hr
Nov 1, 7:17 AM CDT	Dense Fog Advisory	SHV	3 hr
Nov 1, 7:52 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Nov 2, 2:40 AM CDT	Mesoscale Discussion	SPC	2 hr
Nov 3, 2:54 PM CDT	Lake Wind Advisory	SHV	28 hr
Nov 5, 3:34 AM CDT	Freeze Warning	SHV	29 hr
Nov 17, 5:07 AM CST	Lake Wind Advisory	SHV	12 hr
Nov 20, 4:27 AM CST	Dense Fog Advisory	SHV	5 hr
Nov 24, 5:14 AM CST	Lake Wind Advisory	SHV	13 hr
Nov 25, 3:00 AM CST	Lake Wind Advisory	SHV	15 hr
Nov 30, 4:24 AM CST	Lake Wind Advisory	SHV	12 hr
Dec 11, 9:29 PM CST	Lake Wind Advisory	SHV	19 hr
Dec 15, 10:51 AM CST	Lake Wind Advisory	SHV	7 hr
Dec 30, 8:52 PM CST	Mesoscale Discussion	SPC	113 min
Dec 31, 10:36 AM CST	Mesoscale Discussion	SPC	114 min

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	7
Tornado Watch	9
Mesoscale Discussion	27
Flooding
Areal Flood Warning	1
River Flood Warning	4
Flash Flood Watch	2
Areal Flood Advisory	1
Winter
Winter Storm Warning	2
Winter Storm Watch	1
Winter Weather Advisory	4
Heat
Excessive Heat Warning	2
Heat Advisory	8
Cold
Freeze Warning	1
Hard Freeze Warning	3
Wind Chill Advisory	1
Wind and dust
Lake Wind Advisory	22
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 2009 2011

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.