Alert archive / Mississippi / Pearl River County

Weather alerts in Pearl River County, Mississippi, 2011

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

Pearl River County and its neighbors

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

Alerts: 199
Warnings: 78
Watches: 32
Advisories: 33
Busiest month: September46 alerts
Busiest day: September 4, 201115 alerts

Over time

By month

Warning verification

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

4 of 18 tornado warnings covering Pearl River County in 2011 had a tornado report inside them; 1 of 3 tornado reports fell inside a warning, on average 15 minutes after it went out.

Pearl River County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	18	4	78%	3	33%	15 min
Severe thunderstorm warnings	37	11	70%	12	58%	29 min
Flash flood warnings	2	0	100%	0

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS New Orleans, LA: tornado warnings	170	18	89%	51	61%	17 min
NWS New Orleans, LA: severe thunderstorm warnings	214	77	64%	301	62%	25 min
NWS New Orleans, LA: flash flood warnings	35	12	66%	32	59%	34 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, 3:10 AM CST	Tornado Watch	SPC	7 hr
Jan 1, 6:06 AM CST	Mesoscale Discussion	SPC	114 min
Jan 2, 4:25 AM CST	Hard Freeze Watch	LIX	15 hr
Jan 2, 7:50 PM CST	Hard Freeze Warning	LIX	9 hr
Jan 8, 5:07 AM CST	Winter Storm Watch	LIX	23 hr
Jan 9, 3:42 AM CST	Winter Weather Advisory	LIX	16 hr
Jan 11, 3:48 AM CST	Hard Freeze Warning	LIX	29 hr
Jan 12, 3:41 AM CST	Hard Freeze Warning	LIX	29 hr
Jan 13, 3:52 AM CST	Hard Freeze Warning	LIX	29 hr
Jan 21, 3:21 PM CST	Hard Freeze Warning	LIX	17 hr
Jan 31, 1:17 AM CST	Dense Fog Advisory	LIX	8 hr
Jan 31, 5:25 PM CST	Dense Fog Advisory	LIX	14 hr
Feb 1, 5:05 AM CST	Wind Advisory	LIX	25 hr
Feb 1, 12:00 PM CST	Mesoscale Discussion	SPC	60 min
Feb 1, 1:03 PM CST	Tornado Watch	SPC	7 hr
Feb 1, 1:17 PM CST	Severe Thunderstorm Warning	LIX	58 min
Feb 1, 1:41 PM CST	Severe Thunderstorm Warning	LIX	64 min
Feb 1, 2:11 PM CST	Severe Thunderstorm Warning	LIX	49 min
Feb 1, 2:58 PM CST	Severe Thunderstorm Warning	LIX	32 min
Feb 2, 4:49 PM CST	Winter Storm Watch	LIX	11 hr
Feb 2, 4:49 PM CST	Winter Weather Advisory	LIX	17 hr
Feb 3, 9:39 AM CST	Freezing Rain Advisory	LIX	15 hr
Feb 9, 3:19 PM CST	Hard Freeze Watch	LIX	14 hr
Feb 10, 4:53 AM CST	Hard Freeze Warning	LIX	28 hr
Feb 11, 3:30 AM CST	Hard Freeze Warning	LIX	30 hr
Feb 17, 11:47 PM CST	Dense Fog Advisory	LIX	9 hr
Feb 18, 2:42 PM CST	Dense Fog Advisory	LIX	18 hr
Feb 19, 11:25 AM CST	Dense Fog Advisory	LIX	22 hr
Mar 4, 9:33 PM CST	Mesoscale Discussion	SPC	57 min
Mar 5, 8:40 AM CST	Mesoscale Discussion	SPC	65 min
Mar 5, 8:54 AM CST	Tornado Watch	SPC	7 hr
Mar 5, 11:12 AM CST	Mesoscale Discussion	SPC	93 min
Mar 5, 1:44 PM CST	Areal Flood Advisory	LIX	2 hr
Mar 7, 3:52 PM CST	Flash Flood Watch	LIX	50 hr
Mar 8, 9:41 AM CST	River Flood Warning	LIX	18 days
Mar 8, 9:48 AM CST	River Flood Warning	LIX	19 days
Mar 8, 9:52 AM CST	Mesoscale Discussion	SPC	53 min
Mar 8, 1:08 PM CST	Tornado Watch	SPC	9 hr
Mar 8, 4:49 PM CST	Severe Thunderstorm Warning	LIX	56 min
Mar 8, 5:28 PM CST	Tornado Warning	LIX	32 min
Mar 8, 5:46 PM CST	Mesoscale Discussion	SPC	59 min
Mar 8, 7:37 PM CST	Tornado Watch	SPC	7 hr
Mar 8, 9:40 PM CST	Mesoscale Discussion	SPC	65 min
Mar 9, 1:28 AM CST	Mesoscale Discussion	SPC	92 min
Mar 9, 2:39 AM CST	Tornado Watch	SPC	5 hr
Mar 9, 4:39 AM CST	Mesoscale Discussion	SPC	66 min
Mar 9, 5:10 AM CST	Tornado Warning	LIX	50 min
Mar 9, 5:45 AM CST	Tornado Warning	LIX	45 min
Mar 9, 5:56 AM CST	Tornado Warning	LIX	34 min
Mar 9, 6:28 AM CST	Mesoscale Discussion	SPC	92 min
Mar 9, 6:35 AM CST	Tornado Warning	LIX	55 min
Mar 9, 5:28 PM CST	River Flood Warning	LIX	3 hr
Mar 9, 6:27 PM CST	River Flood Warning	LIX	42 hr
Mar 14, 1:22 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 18, 3:36 AM CDT	Dense Fog Advisory	LIX	5 hr
Mar 20, 10:12 PM CDT	Dense Fog Advisory	LIX	6 hr
Mar 29, 2:48 PM CDT	Mesoscale Discussion	SPC	87 min
Mar 29, 3:17 PM CDT	Tornado Watch	SPC	7 hr
Mar 29, 6:47 PM CDT	Mesoscale Discussion	SPC	118 min
Mar 29, 8:56 PM CDT	Mesoscale Discussion	SPC	64 min
Mar 29, 9:42 PM CDT	Tornado Watch	SPC	7 hr
Mar 29, 10:22 PM CDT	Flood Watch	LIX	9 hr
Mar 31, 11:36 AM CDT	River Flood Warning	LIX	5 days
Apr 3, 3:23 PM CDT	Wind Advisory	LIX	40 hr
Apr 4, 10:53 AM CDT	Tornado Watch	SPC	7 hr
Apr 4, 4:28 PM CDT	Mesoscale Discussion	SPC	62 min
Apr 4, 5:28 PM CDT	Tornado Watch	SPC	7 hr
Apr 4, 6:50 PM CDT	Mesoscale Discussion	SPC	85 min
Apr 4, 6:51 PM CDT	Severe Thunderstorm Warning	LIX	54 min
Apr 4, 7:00 PM CDT	Tornado Warning	LIX	45 min
Apr 4, 7:47 PM CDT	Severe Thunderstorm Warning	LIX	73 min
Apr 15, 10:28 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 15, 1:30 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 15, 2:41 PM CDT	Tornado Watch	SPC	7 hr
Apr 15, 3:35 PM CDT	Mesoscale Discussion	SPC	85 min
Apr 15, 5:42 PM CDT	Severe Thunderstorm Warning	LIX	48 min
Apr 15, 6:09 PM CDT	Mesoscale Discussion	SPC	96 min
Apr 15, 6:16 PM CDT	Tornado Warning	LIX	29 min
Apr 15, 7:51 PM CDT	Mesoscale Discussion	SPC	54 min
Apr 26, 2:55 PM CDT	Wind Advisory	LIX	40 hr
May 13, 2:07 PM CDT	Severe Thunderstorm Warning	LIX	53 min
May 13, 2:27 PM CDT	Severe Thunderstorm Warning	LIX	63 min
May 13, 2:52 PM CDT	Severe Thunderstorm Warning	LIX	32 min
May 14, 12:54 AM CDT	Mesoscale Discussion	SPC	96 min
May 26, 2:05 AM CDT	Mesoscale Discussion	SPC	85 min
May 26, 11:45 AM CDT	Severe Thunderstorm Warning	LIX	49 min
May 26, 1:39 PM CDT	Severe Thunderstorm Warning	LIX	25 min
May 26, 4:02 PM CDT	Severe Thunderstorm Warning	LIX	58 min
May 26, 4:18 PM CDT	Severe Thunderstorm Warning	LIX	57 min
May 26, 4:59 PM CDT	Tornado Warning	LIX	15 min
May 26, 5:18 PM CDT	Mesoscale Discussion	SPC	57 min
Jun 2, 5:58 PM CDT	Heat Advisory	LIX	22 hr
Jun 3, 5:32 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 4, 4:49 AM CDT	Heat Advisory	LIX	13 hr
Jun 4, 6:03 PM CDT	Mesoscale Discussion	SPC	117 min
Jun 5, 4:06 AM CDT	Heat Advisory	LIX	15 hr
Jun 5, 6:13 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 6, 1:54 PM CDT	Severe Thunderstorm Warning	LIX	66 min
Jun 6, 2:39 PM CDT	Severe Thunderstorm Warning	LIX	66 min
Jun 6, 3:21 PM CDT	Areal Flood Advisory	LIX	114 min
Jun 6, 3:37 PM CDT	Severe Thunderstorm Warning	LIX	53 min
Jun 6, 5:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 7, 2:01 PM CDT	Mesoscale Discussion	SPC	59 min
Jun 7, 6:04 PM CDT	Mesoscale Discussion	SPC	116 min
Jun 13, 1:32 PM CDT	Mesoscale Discussion	SPC	58 min
Jun 17, 1:15 PM CDT	Heat Advisory	LIX	28 hr
Jun 28, 5:26 PM CDT	Severe Thunderstorm Warning	LIX	64 min
Jun 28, 5:54 PM CDT	Severe Thunderstorm Warning	LIX	43 min
Jun 30, 2:28 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 2, 12:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 3, 4:25 PM CDT	Severe Thunderstorm Warning	LIX	35 min
Jul 26, 4:05 AM CDT	Flash Flood Watch	LIX	15 hr
Jul 31, 10:40 AM CDT	Heat Advisory	LIX	65 hr
Aug 3, 4:05 AM CDT	Excessive Heat Warning	LIX	63 hr
Aug 5, 3:41 AM CDT	Excessive Heat Watch	LIX	11 hr
Aug 5, 2:21 PM CDT	Heat Advisory	LIX	29 hr
Aug 8, 4:52 PM CDT	Excessive Heat Watch	LIX	35 hr
Aug 9, 4:54 PM CDT	Heat Advisory	LIX	3 days
Aug 12, 2:05 PM CDT	Mesoscale Discussion	SPC	115 min
Aug 13, 1:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 1:14 PM CDT	Heat Advisory	LIX	4 hr
Aug 18, 1:04 PM CDT	Mesoscale Discussion	SPC	116 min
Aug 18, 4:59 PM CDT	Severe Thunderstorm Warning	LIX	34 min
Aug 22, 3:45 PM CDT	Heat Advisory	LIX	51 hr
Aug 23, 4:40 PM CDT	Mesoscale Discussion	SPC	35 min
Aug 24, 4:07 PM CDT	Severe Thunderstorm Warning	LIX	23 min
Aug 24, 4:10 PM CDT	Severe Thunderstorm Warning	LIX	35 min
Aug 24, 4:29 PM CDT	Severe Thunderstorm Warning	LIX	31 min
Aug 24, 4:45 PM CDT	Tornado Warning	LIX	30 min
Aug 24, 6:57 PM CDT	Heat Advisory	LIX	48 hr
Sep 1, 4:03 AM CDT	Flash Flood Watch	LIX	4 days
Sep 1, 7:02 PM CDT	Tropical Storm Warning	LIX	3 days
Sep 3, 1:43 AM CDT	Tornado Watch	SPC	8 hr
Sep 3, 6:17 AM CDT	Tornado Warning	LIX	43 min
Sep 3, 6:26 AM CDT	Tornado Warning	LIX	34 min
Sep 3, 6:58 AM CDT	Tornado Warning	LIX	47 min
Sep 3, 7:23 AM CDT	Flash Flood Warning	LIX	3 hr
Sep 3, 7:44 AM CDT	Tornado Warning	LIX	61 min
Sep 3, 8:42 AM CDT	Tornado Warning	LIX	63 min
Sep 3, 9:41 AM CDT	Tornado Watch	SPC	12 hr
Sep 3, 11:22 AM CDT	River Flood Warning	LIX	72 hr
Sep 3, 11:31 AM CDT	River Flood Warning	LIX	3 days
Sep 3, 1:41 PM CDT	Mesoscale Discussion	SPC	64 min
Sep 3, 5:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 3, 9:43 PM CDT	Tornado Watch	SPC	9 hr
Sep 3, 10:16 PM CDT	Tornado Warning	LIX	29 min
Sep 3, 11:35 PM CDT	Mesoscale Discussion	SPC	115 min
Sep 3, 11:41 PM CDT	Tornado Warning	LIX	34 min
Sep 4, 4:30 AM CDT	Mesoscale Discussion	SPC	60 min
Sep 4, 5:05 AM CDT	Tornado Watch	SPC	11 hr
Sep 4, 5:09 AM CDT	Tornado Warning	LIX	51 min
Sep 4, 5:27 AM CDT	Tornado Warning	LIX	33 min
Sep 4, 8:38 AM CDT	Flash Flood Warning	LIX	3 hr
Sep 4, 9:50 AM CDT	Mesoscale Discussion	SPC	85 min
Sep 4, 11:00 AM CDT	River Flood Warning	LIX	16 days
Sep 4, 11:00 AM CDT	River Flood Warning	LIX	18 days
Sep 4, 2:47 PM CDT	Mesoscale Discussion	SPC	88 min
Sep 4, 3:47 PM CDT	Tornado Watch	SPC	6 hr
Sep 4, 6:29 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 4, 9:42 PM CDT	Tornado Watch	SPC	9 hr
Sep 4, 10:43 PM CDT	Wind Advisory	LIX	25 hr
Sep 4, 11:35 PM CDT	Mesoscale Discussion	SPC	115 min
Sep 19, 12:29 PM CDT	Mesoscale Discussion	SPC	91 min
Sep 20, 12:56 AM CDT	Dense Fog Advisory	LIX	8 hr
Sep 28, 12:10 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 28, 12:55 PM CDT	Severe Thunderstorm Warning	LIX	35 min
Sep 28, 1:25 PM CDT	Severe Thunderstorm Warning	LIX	20 min
Sep 28, 1:56 PM CDT	Severe Thunderstorm Warning	LIX	64 min
Sep 28, 1:59 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 28, 2:20 PM CDT	Severe Thunderstorm Warning	LIX	25 min
Sep 28, 2:35 PM CDT	Severe Thunderstorm Warning	LIX	55 min
Sep 28, 2:48 PM CDT	Severe Thunderstorm Warning	LIX	24 min
Sep 28, 3:34 PM CDT	Severe Thunderstorm Warning	LIX	56 min
Sep 28, 3:47 PM CDT	Severe Thunderstorm Warning	LIX	58 min
Sep 28, 5:19 PM CDT	Mesoscale Discussion	SPC	86 min
Sep 28, 9:41 PM CDT	Mesoscale Discussion	SPC	94 min
Nov 10, 11:38 PM CST	Freeze Warning	LIX	7 hr
Nov 15, 8:59 PM CST	Mesoscale Discussion	SPC	2 hr
Nov 16, 2:20 AM CST	Tornado Watch	SPC	8 hr
Nov 16, 2:49 AM CST	Tornado Watch	SPC	7 hr
Nov 16, 5:33 AM CST	Mesoscale Discussion	SPC	87 min
Nov 16, 6:15 AM CST	Severe Thunderstorm Warning	LIX	60 min
Nov 17, 3:48 PM CST	Freeze Warning	LIX	12 hr
Nov 20, 12:06 AM CST	Dense Fog Advisory	LIX	9 hr
Nov 20, 3:45 PM CST	Dense Fog Advisory	LIX	17 hr
Dec 16, 4:58 AM CST	Dense Fog Advisory	LIX	4 hr
Dec 20, 11:25 AM CST	Mesoscale Discussion	SPC	2 hr
Dec 20, 5:11 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 22, 4:11 AM CST	Mesoscale Discussion	SPC	34 min
Dec 22, 4:36 AM CST	Tornado Watch	SPC	7 hr
Dec 22, 7:50 AM CST	Mesoscale Discussion	SPC	55 min
Dec 22, 11:04 AM CST	Severe Thunderstorm Warning	LIX	40 min
Dec 22, 11:19 AM CST	Severe Thunderstorm Warning	LIX	56 min
Dec 22, 11:50 AM CST	Severe Thunderstorm Warning	LIX	39 min
Dec 22, 2:51 PM CST	Mesoscale Discussion	SPC	54 min
Dec 26, 9:43 AM CST	River Flood Warning	LIX	9 days
Dec 30, 3:01 AM CST	Dense Fog Advisory	LIX	6 hr
Dec 30, 9:37 PM CST	Dense Fog Advisory	LIX	13 hr
Dec 31, 2:19 PM CST	Dense Fog Advisory	LIX	19 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	37
Tornado Warning	18
Severe Thunderstorm Watch	2
Tornado Watch	20
Mesoscale Discussion	56
Flooding
Flash Flood Warning	2
River Flood Warning	10
Flash Flood Watch	3
Flood Watch	1
Areal Flood Advisory	2
Winter
Winter Storm Watch	2
Freezing Rain Advisory	1
Winter Weather Advisory	2
Heat
Excessive Heat Warning	1
Excessive Heat Watch	2
Heat Advisory	10
Cold
Freeze Warning	2
Hard Freeze Warning	7
Hard Freeze Watch	2
Wind and dust
Wind Advisory	4
Fog and smoke
Dense Fog Advisory	14
Tropical
Tropical Storm Warning	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 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.