Alert archive / Mississippi / Lawrence County

Weather alerts in Lawrence County, Mississippi, 2017

145 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lawrence County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 145
Warnings: 30
Watches: 28
Advisories: 29
Busiest month: January28 alerts
Busiest day: January 21, 20177 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 Lawrence County in 2017 had a tornado report inside them.

Lawrence County, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	14	9	36%	9	89%	20 min
Flash flood warnings	5	2	60%	6	100%	64 min

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Jackson, MS: tornado warnings	84	34	60%	98	86%	22 min
NWS Jackson, MS: severe thunderstorm warnings	380	246	35%	733	78%	22 min
NWS Jackson, MS: flash flood warnings	128	78	39%	257	79%	68 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, 8:31 AM CST	Flash Flood Watch	JAN	9 hr
Jan 2, 9:30 AM CST	Flash Flood Watch	JAN	8 hr
Jan 2, 10:17 AM CST	Mesoscale Discussion	SPC	118 min
Jan 2, 11:22 AM CST	Tornado Watch	SPC	9 hr
Jan 2, 1:33 PM CST	Severe Thunderstorm Warning	JAN	42 min
Jan 2, 2:03 PM CST	Mesoscale Discussion	SPC	117 min
Jan 3, 5:36 AM CST	Dense Fog Advisory	JAN	3 hr
Jan 5, 1:04 PM CST	Winter Weather Advisory	JAN	33 hr
Jan 6, 10:40 AM CST	Winter Storm Warning	JAN	11 hr
Jan 6, 4:15 PM CST	Mesoscale Discussion	SPC	4 hr
Jan 6, 7:05 PM CST	Hard Freeze Warning	JAN	41 hr
Jan 6, 9:48 PM CST	Wind Chill Advisory	JAN	13 hr
Jan 12, 3:13 PM CST	Dense Fog Advisory	JAN	18 hr
Jan 13, 7:37 PM CST	Dense Fog Advisory	JAN	13 hr
Jan 15, 3:42 AM CST	Dense Fog Advisory	JAN	6 hr
Jan 18, 1:58 AM CST	Dense Fog Advisory	JAN	7 hr
Jan 19, 6:28 AM CST	Mesoscale Discussion	SPC	2 hr
Jan 19, 8:32 AM CST	Special Weather Statement	JAN	28 min
Jan 20, 10:44 PM CST	Mesoscale Discussion	SPC	61 min
Jan 20, 11:00 PM CST	Tornado Watch	SPC	8 hr
Jan 21, 2:22 AM CST	Severe Thunderstorm Warning	JAN	53 min
Jan 21, 2:55 AM CST	Mesoscale Discussion	SPC	2 hr
Jan 21, 9:21 AM CST	River Flood Warning	JAN	4 days
Jan 21, 2:34 PM CST	Mesoscale Discussion	SPC	2 hr
Jan 21, 3:29 PM CST	Tornado Watch	SPC	6 hr
Jan 21, 6:05 PM CST	Mesoscale Discussion	SPC	85 min
Jan 21, 7:50 PM CST	Tornado Watch	SPC	4 hr
Jan 21, 8:22 PM CST	Mesoscale Discussion	SPC	113 min
Feb 7, 5:59 AM CST	Mesoscale Discussion	SPC	2 hr
Feb 7, 7:54 AM CST	Tornado Watch	SPC	11 hr
Feb 7, 10:18 AM CST	Mesoscale Discussion	SPC	117 min
Feb 7, 12:56 PM CST	Mesoscale Discussion	SPC	64 min
Feb 14, 2:02 PM CST	Mesoscale Discussion	SPC	2 hr
Feb 14, 9:48 PM CST	Special Weather Statement	JAN	42 min
Feb 18, 6:45 AM CST	Dense Fog Advisory	JAN	3 hr
Feb 18, 2:39 PM CST	Dense Fog Advisory	JAN	18 hr
Feb 20, 3:29 AM CST	Dense Fog Advisory	JAN	6 hr
Feb 22, 3:14 AM CST	Dense Fog Advisory	JAN	7 hr
Feb 22, 2:28 PM CST	Dense Fog Advisory	JAN	18 hr
Mar 1, 1:32 PM CST	Mesoscale Discussion	SPC	2 hr
Mar 1, 3:55 PM CST	Special Weather Statement	JAN	35 min
Mar 7, 1:40 PM CST	Mesoscale Discussion	SPC	65 min
Mar 9, 4:34 PM CST	Special Weather Statement	JAN	26 min
Mar 9, 4:52 PM CST	Severe Thunderstorm Warning	JAN	38 min
Mar 9, 5:07 PM CST	Severe Thunderstorm Warning	JAN	34 min
Mar 9, 5:32 PM CST	Severe Thunderstorm Warning	JAN	43 min
Mar 27, 3:33 PM CDT	Mesoscale Discussion	SPC	87 min
Mar 29, 7:26 PM CDT	Tornado Watch	SPC	8 hr
Mar 30, 1:34 AM CDT	Mesoscale Discussion	SPC	86 min
Apr 2, 4:54 AM CDT	Flash Flood Watch	JAN	28 hr
Apr 2, 12:49 PM CDT	Mesoscale Discussion	SPC	116 min
Apr 2, 4:52 PM CDT	Tornado Watch	SPC	9 hr
Apr 2, 6:53 PM CDT	Severe Thunderstorm Warning	JAN	67 min
Apr 2, 9:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 2, 11:37 PM CDT	Mesoscale Discussion	SPC	83 min
Apr 3, 1:28 AM CDT	Severe Thunderstorm Warning	JAN	47 min
Apr 3, 1:48 AM CDT	Tornado Watch	SPC	10 hr
Apr 3, 1:54 AM CDT	Severe Thunderstorm Warning	JAN	66 min
Apr 3, 3:40 AM CDT	Flash Flood Warning	JAN	3 hr
Apr 3, 11:49 AM CDT	River Flood Warning	JAN	11 days
Apr 20, 6:12 AM CDT	Dense Fog Advisory	JAN	3 hr
Apr 22, 6:37 PM CDT	Special Weather Statement	JAN	38 min
Apr 22, 6:52 PM CDT	Severe Thunderstorm Warning	JAN	38 min
Apr 22, 7:30 PM CDT	Special Weather Statement	JAN	45 min
Apr 26, 9:01 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 26, 11:40 PM CDT	Severe Thunderstorm Warning	JAN	23 min
Apr 28, 3:43 PM CDT	Wind Advisory	JAN	33 hr
Apr 29, 11:50 AM CDT	Flash Flood Watch	JAN	28 hr
Apr 30, 6:59 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 30, 7:32 AM CDT	Tornado Watch	SPC	7 hr
Apr 30, 9:54 AM CDT	Flash Flood Warning	JAN	3 hr
May 2, 3:20 PM CDT	Flash Flood Watch	JAN	29 hr
May 3, 3:48 AM CDT	Wind Advisory	JAN	24 hr
May 12, 1:43 PM CDT	Mesoscale Discussion	SPC	3 hr
May 12, 2:44 PM CDT	Special Weather Statement	JAN	46 min
May 12, 3:05 PM CDT	Severe Thunderstorm Warning	JAN	40 min
May 20, 2:12 PM CDT	Mesoscale Discussion	SPC	93 min
May 20, 2:39 PM CDT	Flash Flood Watch	JAN	6 hr
May 21, 2:22 PM CDT	Mesoscale Discussion	SPC	113 min
May 21, 3:13 PM CDT	Flash Flood Watch	JAN	40 hr
May 21, 4:35 PM CDT	Special Weather Statement	JAN	40 min
May 28, 7:08 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 3, 2:52 PM CDT	Special Weather Statement	JAN	53 min
Jun 3, 2:55 PM CDT	Special Weather Statement	JAN	50 min
Jun 16, 12:05 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 16, 12:42 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 16, 3:40 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 16, 6:19 PM CDT	Mesoscale Discussion	SPC	56 min
Jun 16, 8:53 PM CDT	Severe Thunderstorm Warning	JAN	52 min
Jun 17, 1:21 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 19, 2:44 PM CDT	Flash Flood Watch	JAN	4 days
Jun 21, 5:15 PM CDT	Special Weather Statement	JAN	60 min
Jun 22, 2:24 AM CDT	Mesoscale Discussion	SPC	96 min
Jun 22, 2:57 AM CDT	Tornado Watch	SPC	10 hr
Jun 22, 11:39 AM CDT	Tornado Warning	JAN	36 min
Jun 22, 11:50 AM CDT	Mesoscale Discussion	SPC	85 min
Jun 22, 1:04 PM CDT	Tornado Watch	SPC	9 hr
Jun 22, 3:48 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 22, 8:57 PM CDT	Mesoscale Discussion	SPC	63 min
Jun 23, 2:10 PM CDT	Special Weather Statement	JAN	35 min
Jun 24, 3:42 AM CDT	Flash Flood Watch	JAN	15 hr
Jun 24, 7:17 AM CDT	River Flood Warning	JAN	5 days
Jul 7, 6:06 PM CDT	Severe Thunderstorm Warning	JAN	22 min
Jul 11, 4:14 PM CDT	Special Weather Statement	JAN	46 min
Jul 17, 4:41 PM CDT	Special Weather Statement	JAN	49 min
Jul 17, 5:32 PM CDT	Severe Thunderstorm Warning	JAN	43 min
Jul 19, 3:22 AM CDT	Heat Advisory	JAN	40 hr
Jul 24, 10:42 AM CDT	Special Weather Statement	JAN	63 min
Jul 24, 11:22 AM CDT	Flash Flood Watch	JAN	8 hr
Jul 24, 12:35 PM CDT	Special Weather Statement	JAN	55 min
Jul 25, 10:49 AM CDT	Flash Flood Warning	JAN	3 hr
Jul 25, 12:37 PM CDT	Flash Flood Warning Emergency	JAN	3 hr
Jul 25, 1:18 PM CDT	Flash Flood Warning	JAN	3 hr
Jul 25, 3:25 PM CDT	Areal Flood Warning	JAN	12 hr
Jul 26, 4:19 AM CDT	Heat Advisory	JAN	40 hr
Jul 26, 9:40 AM CDT	Areal Flood Warning	JAN	12 hr
Jul 28, 2:53 PM CDT	Flash Flood Watch	JAN	21 hr
Aug 6, 2:19 PM CDT	Special Weather Statement	JAN	41 min
Aug 10, 2:42 AM CDT	Flash Flood Watch	JAN	16 hr
Aug 15, 3:32 PM CDT	Special Weather Statement	JAN	43 min
Aug 15, 4:19 PM CDT	Special Weather Statement	JAN	26 min
Aug 18, 3:02 PM CDT	Heat Advisory	JAN	52 hr
Aug 29, 10:54 AM CDT	Flash Flood Watch	JAN	56 hr
Aug 30, 9:51 AM CDT	Mesoscale Discussion	SPC	114 min
Aug 30, 10:22 AM CDT	Tornado Watch	SPC	8 hr
Aug 30, 2:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 30, 5:50 PM CDT	Mesoscale Discussion	SPC	55 min
Aug 30, 9:10 PM CDT	Tornado Warning	JAN	34 min
Sep 5, 8:46 PM CDT	Special Weather Statement	JAN	44 min
Sep 17, 7:23 AM CDT	Dense Fog Advisory	JAN	3 hr
Sep 20, 6:04 PM CDT	Special Weather Statement	JAN	26 min
Nov 16, 3:47 AM CST	Dense Fog Advisory	JAN	5 hr
Nov 19, 2:58 PM CST	Freeze Warning	JAN	17 hr
Nov 30, 1:04 AM CST	Dense Fog Advisory	JAN	9 hr
Nov 30, 7:33 PM CST	Dense Fog Advisory	JAN	14 hr
Dec 1, 1:57 PM CST	Dense Fog Advisory	JAN	20 hr
Dec 2, 1:43 PM CST	Dense Fog Advisory	JAN	19 hr
Dec 7, 3:33 AM CST	Winter Weather Advisory	JAN	32 hr
Dec 7, 2:44 PM CST	Winter Storm Warning	JAN	21 hr
Dec 8, 3:36 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 17, 4:04 AM CST	Special Weather Statement	JAN	56 min
Dec 17, 5:18 PM CST	Dense Fog Advisory	JAN	16 hr
Dec 18, 3:45 PM CST	Dense Fog Advisory	JAN	16 hr
Dec 21, 2:05 AM CST	Dense Fog Advisory	JAN	8 hr
Dec 21, 2:33 PM CST	Dense Fog Advisory	JAN	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	14
Tornado Warning	2
Severe Thunderstorm Watch	3
Tornado Watch	12
Mesoscale Discussion	36
Special Weather Statement	22
Flooding
Areal Flood Warning	2
Flash Flood Warning	5
River Flood Warning	3
Flash Flood Watch	13
Winter
Winter Storm Warning	2
Winter Weather Advisory	2
Heat
Heat Advisory	3
Cold
Freeze Warning	1
Hard Freeze Warning	1
Wind Chill Advisory	1
Wind and dust
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	21

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2016 2018

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.