Alert archive / Louisiana / Webster Parish

Weather alerts in Webster Parish, Louisiana, 2008

202 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Webster Parish and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts: 202
Warnings: 48
Watches: 34
Advisories: 62
Busiest month: March36 alerts
Busiest day: December 9, 20089 alerts

Over time

By month

Warning verification

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

3 of 7 tornado warnings covering Webster Parish in 2008 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 20 minutes after it went out.

Webster Parish, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	7	3	57%	3	67%	20 min
Severe thunderstorm warnings	26	16	38%	16	63%	19 min
Flash flood warnings	0			0

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Shreveport, LA: tornado warnings	77	28	64%	61	66%	15 min
NWS Shreveport, LA: severe thunderstorm warnings	461	201	56%	484	74%	23 min
NWS Shreveport, LA: flash flood warnings	64	42	34%	114	89%	69 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, 3:30 AM CST	Lake Wind Advisory	SHV	15 hr
Jan 7, 3:49 AM CST	Lake Wind Advisory	SHV	14 hr
Jan 8, 3:00 AM CST	Lake Wind Advisory	SHV	15 hr
Jan 10, 3:25 AM CST	Mesoscale Discussion	SPC	2 hr
Jan 10, 11:30 AM CST	Lake Wind Advisory	SHV	7 hr
Jan 25, 5:44 AM CST	Winter Weather Advisory	SHV	12 hr
Jan 25, 12:24 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 25, 3:48 PM CST	Freezing Rain Advisory	SHV	8 hr
Jan 27, 11:47 PM CST	Dense Fog Advisory	SHV	10 hr
Jan 28, 4:11 AM CST	Lake Wind Advisory	SHV	11 hr
Jan 29, 4:36 AM CST	Lake Wind Advisory	SHV	17 hr
Jan 29, 7:57 AM CST	Mesoscale Discussion	SPC	93 min
Feb 5, 3:00 AM CST	Lake Wind Advisory	SHV	15 hr
Feb 5, 11:16 AM CST	Mesoscale Discussion	SPC	89 min
Feb 5, 2:08 PM CST	Tornado Watch PDS	SPC	10 hr
Feb 5, 6:45 PM CST	Severe Thunderstorm Warning	SHV	45 min
Feb 7, 11:10 AM CST	Lake Wind Advisory	SHV	7 hr
Feb 14, 4:10 AM CST	Lake Wind Advisory	SHV	14 hr
Feb 16, 10:00 AM CST	River Flood Warning	SHV	10 days
Feb 16, 4:17 PM CST	Lake Wind Advisory	SHV	12 hr
Feb 16, 9:13 PM CST	Severe Thunderstorm Warning	SHV	62 min
Feb 16, 9:28 PM CST	Severe Thunderstorm Warning	SHV	62 min
Feb 21, 2:51 AM CST	Mesoscale Discussion	SPC	24 min
Feb 21, 6:53 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Feb 21, 10:27 PM CST	Severe Thunderstorm Warning	SHV	48 min
Feb 22, 2:46 AM CST	Dense Fog Advisory	SHV	3 hr
Feb 25, 3:51 AM CST	Dense Fog Advisory	SHV	5 hr
Feb 25, 3:51 AM CST	Lake Wind Advisory	SHV	37 hr
Feb 25, 4:39 PM CST	Mesoscale Discussion	SPC	2 hr
Feb 25, 7:20 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Feb 25, 7:48 PM CST	Severe Thunderstorm Warning	SHV	57 min
Feb 25, 9:22 PM CST	Mesoscale Discussion	SPC	83 min
Feb 25, 10:07 PM CST	Severe Thunderstorm Warning	SHV	53 min
Mar 1, 5:09 AM CST	Dense Fog Advisory	SHV	4 hr
Mar 2, 5:52 AM CST	Lake Wind Advisory	SHV	15 hr
Mar 2, 9:36 PM CST	Lake Wind Advisory	SHV	23 hr
Mar 3, 4:16 AM CST	Flash Flood Watch	SHV	12 hr
Mar 3, 6:47 AM CST	Severe Thunderstorm Watch	SPC	6 hr
Mar 3, 10:18 AM CST	Mesoscale Discussion	SPC	87 min
Mar 3, 10:22 AM CST	River Flood Warning	SHV	12 days
Mar 3, 10:36 AM CST	Tornado Watch	SPC	9 hr
Mar 6, 2:04 PM CST	Winter Weather Advisory	SHV	31 hr
Mar 7, 5:12 AM CST	Lake Wind Advisory	SHV	10 hr
Mar 13, 7:59 PM CDT	Mesoscale Discussion	SPC	31 min
Mar 13, 10:33 PM CDT	Mesoscale Discussion	SPC	27 min
Mar 13, 11:22 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 14, 6:59 PM CDT	Mesoscale Discussion	SPC	31 min
Mar 14, 7:14 PM CDT	Tornado Watch	SPC	7 hr
Mar 14, 7:20 PM CDT	Severe Thunderstorm Warning	SHV	40 min
Mar 14, 7:59 PM CDT	Tornado Warning	SHV	31 min
Mar 14, 8:25 PM CDT	Tornado Warning	SHV	35 min
Mar 14, 8:34 PM CDT	Tornado Warning	SHV	41 min
Mar 14, 9:50 PM CDT	Mesoscale Discussion	SPC	55 min
Mar 17, 3:51 AM CDT	Lake Wind Advisory	SHV	62 hr
Mar 17, 3:59 AM CDT	Flash Flood Watch	SHV	48 hr
Mar 18, 9:26 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 18, 10:59 AM CDT	Tornado Watch PDS	SPC	8 hr
Mar 18, 12:39 PM CDT	Wind Advisory	SHV	6 hr
Mar 18, 6:19 PM CDT	Mesoscale Discussion	SPC	56 min
Mar 18, 6:47 PM CDT	Tornado Watch	SPC	9 hr
Mar 18, 10:34 PM CDT	Mesoscale Discussion	SPC	56 min
Mar 22, 11:42 AM CDT	River Flood Warning	SHV	21 days
Mar 25, 2:36 AM CDT	Lake Wind Advisory	SHV	16 hr
Mar 26, 3:52 PM CDT	Lake Wind Advisory	SHV	29 hr
Mar 30, 12:45 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 30, 6:48 AM CDT	Mesoscale Discussion	SPC	117 min
Mar 30, 9:08 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 30, 11:44 AM CDT	Flash Flood Watch	SHV	41 hr
Mar 30, 12:11 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 1, 12:42 AM CDT	Mesoscale Discussion	SPC	63 min
Apr 1, 1:06 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 1, 3:25 AM CDT	Mesoscale Discussion	SPC	95 min
Apr 3, 5:30 AM CDT	Lake Wind Advisory	SHV	14 hr
Apr 3, 9:39 AM CDT	Dense Fog Advisory	SHV	3 hr
Apr 4, 12:48 AM CDT	Mesoscale Discussion	SPC	117 min
Apr 4, 3:34 AM CDT	Mesoscale Discussion	SPC	56 min
Apr 4, 3:55 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 4, 4:44 AM CDT	Flash Flood Watch	SHV	16 hr
Apr 4, 10:17 AM CDT	River Flood Warning	SHV	16 days
Apr 8, 7:33 PM CDT	Mesoscale Discussion	SPC	117 min
Apr 9, 4:01 PM CDT	Mesoscale Discussion	SPC	59 min
Apr 10, 3:42 AM CDT	Lake Wind Advisory	SHV	14 hr
Apr 10, 8:32 AM CDT	Mesoscale Discussion	SPC	58 min
Apr 10, 8:42 AM CDT	Tornado Watch	SPC	7 hr
Apr 10, 10:51 AM CDT	Mesoscale Discussion	SPC	84 min
Apr 12, 3:40 PM CDT	Lake Wind Advisory	SHV	27 hr
Apr 13, 3:10 PM CDT	Frost Advisory	SHV	18 hr
Apr 14, 4:10 PM CDT	Frost Advisory	SHV	17 hr
Apr 16, 4:56 AM CDT	Lake Wind Advisory	SHV	14 hr
Apr 17, 5:03 AM CDT	Lake Wind Advisory	SHV	16 hr
Apr 20, 9:19 AM CDT	River Flood Warning	SHV	4 days
Apr 23, 2:28 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 30, 3:09 AM CDT	Lake Wind Advisory	SHV	49 hr
Apr 30, 2:55 PM CDT	Lake Wind Advisory	SHV	37 hr
May 2, 4:49 AM CDT	Lake Wind Advisory	SHV	8 hr
May 2, 8:49 AM CDT	Tornado Watch	SPC	6 hr
May 2, 12:12 PM CDT	Mesoscale Discussion	SPC	2 hr
May 2, 4:57 PM CDT	Severe Thunderstorm Warning	SHV	33 min
May 2, 5:18 PM CDT	Tornado Watch	SPC	6 hr
May 2, 7:44 PM CDT	Severe Thunderstorm Warning	SHV	61 min
May 2, 9:14 PM CDT	Severe Thunderstorm Warning	SHV	31 min
May 2, 9:33 PM CDT	Severe Thunderstorm Warning	SHV	57 min
May 6, 3:15 PM CDT	Lake Wind Advisory	SHV	30 hr
May 7, 4:47 PM CDT	Mesoscale Discussion	SPC	88 min
May 7, 5:28 PM CDT	Tornado Watch	SPC	8 hr
May 7, 8:43 PM CDT	Severe Thunderstorm Warning	SHV	62 min
May 7, 9:42 PM CDT	Severe Thunderstorm Warning	SHV	63 min
May 10, 9:40 AM CDT	Mesoscale Discussion	SPC	65 min
May 10, 10:11 AM CDT	Tornado Watch	SPC	5 hr
May 10, 2:23 PM CDT	Mesoscale Discussion	SPC	97 min
May 10, 9:52 PM CDT	Severe Thunderstorm Warning	SHV	53 min
May 10, 10:07 PM CDT	Tornado Watch	SPC	5 hr
May 10, 10:51 PM CDT	Special Weather Statement	SHV	54 min
May 13, 9:37 AM CDT	Mesoscale Discussion	SPC	53 min
May 13, 7:11 PM CDT	Mesoscale Discussion	SPC	2 hr
May 14, 2:28 AM CDT	Mesoscale Discussion	SPC	92 min
May 14, 2:45 AM CDT	Special Weather Statement	SHV	60 min
May 14, 3:15 AM CDT	Flash Flood Watch	SHV	31 hr
May 14, 8:56 PM CDT	River Flood Warning	SHV	33 hr
May 15, 1:16 AM CDT	Tornado Watch	SPC	6 hr
May 22, 4:10 PM CDT	Severe Thunderstorm Warning	SHV	35 min
May 22, 5:18 PM CDT	Mesoscale Discussion	SPC	57 min
May 27, 12:23 PM CDT	Mesoscale Discussion	SPC	97 min
May 27, 12:51 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 27, 3:08 PM CDT	Severe Thunderstorm Warning	SHV	37 min
May 27, 5:14 PM CDT	Mesoscale Discussion	SPC	2 hr
May 28, 4:25 AM CDT	Dense Fog Advisory	SHV	5 hr
Jun 3, 9:47 PM CDT	Lake Wind Advisory	SHV	22 hr
Jun 4, 4:21 PM CDT	Lake Wind Advisory	SHV	36 hr
Jun 10, 4:07 AM CDT	Flash Flood Watch	SHV	53 min
Jun 10, 5:08 AM CDT	Flash Flood Watch	SHV	7 hr
Jun 14, 6:05 AM CDT	Severe Thunderstorm Warning	SHV	25 min
Jun 14, 6:26 AM CDT	Severe Thunderstorm Warning	SHV	51 min
Jun 15, 9:44 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 17, 3:11 PM CDT	Mesoscale Discussion	SPC	64 min
Jun 25, 3:49 PM CDT	Severe Thunderstorm Warning	SHV	56 min
Jun 25, 4:29 PM CDT	Severe Thunderstorm Warning	SHV	61 min
Jun 26, 5:25 PM CDT	Special Weather Statement	SHV	65 min
Jun 28, 9:28 PM CDT	Severe Thunderstorm Warning	SHV	62 min
Jun 28, 9:49 PM CDT	Severe Thunderstorm Warning	SHV	56 min
Jun 28, 10:47 PM CDT	Severe Thunderstorm Warning	SHV	43 min
Jul 13, 7:11 PM CDT	Special Weather Statement	SHV	64 min
Jul 26, 3:44 PM CDT	Heat Advisory	SHV	3 days
Jul 30, 3:23 PM CDT	Heat Advisory	SHV	14 hr
Aug 1, 3:29 PM CDT	Heat Advisory	SHV	3 days
Aug 1, 5:50 PM CDT	Special Weather Statement	SHV	55 min
Aug 2, 7:38 PM CDT	Severe Thunderstorm Warning	SHV	37 min
Aug 3, 1:52 AM CDT	Special Weather Statement	SHV	53 min
Aug 3, 6:44 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
Aug 11, 10:00 AM CDT	Flash Flood Watch	SHV	29 hr
Aug 11, 1:56 PM CDT	Special Weather Statement	SHV	64 min
Aug 11, 3:16 PM CDT	Severe Thunderstorm Warning	SHV	59 min
Aug 19, 3:44 PM CDT	Flood Watch	SHV	23 hr
Aug 22, 3:55 PM CDT	Special Weather Statement	SHV	65 min
Aug 28, 5:28 PM CDT	Special Weather Statement	SHV	62 min
Aug 31, 4:02 PM CDT	Hurricane Local Statement	SHV	51 hr
Aug 31, 4:03 PM CDT	Flash Flood Watch	SHV	3 days
Aug 31, 4:03 PM CDT	Lake Wind Advisory	SHV	51 hr
Aug 31, 4:03 PM CDT	Wind Advisory	SHV	43 hr
Sep 1, 4:31 AM CDT	Inland Tropical Storm Warning	SHV	25 hr
Sep 2, 12:28 PM CDT	River Flood Warning	SHV	46 hr
Sep 2, 12:28 PM CDT	River Flood Warning	SHV	46 hr
Sep 2, 12:30 PM CDT	River Flood Warning	SHV	23 hr
Sep 7, 9:34 PM CDT	River Flood Warning	SHV	4 days
Sep 12, 5:04 AM CDT	Inland Tropical Storm Warning	SHV	43 hr
Sep 12, 5:15 AM CDT	Flash Flood Watch	SHV	42 hr
Sep 12, 5:33 AM CDT	Wind Advisory	SHV	42 hr
Sep 13, 9:40 AM CDT	Tornado Watch	SPC	9 hr
Sep 13, 10:27 AM CDT	Tornado Warning	SHV	33 min
Sep 13, 1:34 PM CDT	Mesoscale Discussion	SPC	116 min
Sep 13, 3:51 PM CDT	Tornado Warning	SHV	39 min
Sep 13, 9:22 PM CDT	River Flood Warning	SHV	12 hr
Sep 13, 11:33 PM CDT	Lake Wind Advisory	SHV	7 hr
Oct 6, 6:06 PM CDT	Mesoscale Discussion	SPC	54 min
Oct 27, 5:00 AM CDT	Lake Wind Advisory	SHV	11 hr
Oct 28, 4:30 AM CDT	Freeze Warning	SHV	28 hr
Nov 12, 9:43 PM CST	Dense Fog Advisory	SHV	11 hr
Nov 14, 3:44 PM CST	Lake Wind Advisory	SHV	24 hr
Nov 15, 3:29 PM CST	Freeze Warning	SHV	18 hr
Nov 20, 6:03 AM CST	Dense Fog Advisory	SHV	3 hr
Nov 30, 4:32 AM CST	Lake Wind Advisory	SHV	13 hr
Dec 2, 3:02 PM CST	Lake Wind Advisory	SHV	31 hr
Dec 3, 5:07 PM CST	Mesoscale Discussion	SPC	83 min
Dec 8, 4:46 AM CST	Lake Wind Advisory	SHV	47 hr
Dec 9, 3:41 AM CST	Mesoscale Discussion	SPC	64 min
Dec 9, 4:11 AM CST	Tornado Watch	SPC	7 hr
Dec 9, 5:04 AM CST	Tornado Warning	SHV	41 min
Dec 9, 6:19 AM CST	Tornado Warning	SHV	56 min
Dec 9, 7:41 AM CST	Mesoscale Discussion	SPC	64 min
Dec 9, 9:32 AM CST	Tornado Watch	SPC	6 hr
Dec 9, 10:12 AM CST	Mesoscale Discussion	SPC	93 min
Dec 9, 10:27 AM CST	Special Weather Statement	SHV	63 min
Dec 9, 11:20 AM CST	Severe Thunderstorm Warning	SHV	40 min
Dec 10, 4:16 PM CST	Winter Weather Advisory	SHV	13 hr
Dec 12, 3:08 PM CST	Lake Wind Advisory	SHV	33 hr
Dec 13, 4:20 PM CST	Lake Wind Advisory	SHV	26 hr
Dec 15, 5:30 AM CST	Winter Weather Advisory	SHV	31 hr
Dec 17, 9:44 PM CST	Dense Fog Advisory	SHV	11 hr
Dec 18, 8:55 AM CST	Dense Fog Advisory	SHV	3 hr
Dec 23, 3:14 AM CST	Freezing Rain Advisory	SHV	9 hr
Dec 26, 3:45 PM CST	Lake Wind Advisory	SHV	26 hr
Dec 27, 1:20 PM CST	Mesoscale Discussion	SPC	25 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	26
Tornado Warning	7
Severe Thunderstorm Watch	8
Tornado Watch	15
Mesoscale Discussion	47
Special Weather Statement	10
Flooding
River Flood Warning	11
Flash Flood Watch	10
Flood Watch	1
Winter
Freezing Rain Advisory	2
Winter Weather Advisory	4
Heat
Heat Advisory	3
Cold
Freeze Warning	2
Frost Advisory	2
Wind and dust
Lake Wind Advisory	38
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	10
Tropical
Inland Tropical Storm Warning	2
Hurricane Local Statement	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2007 2009

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.