Alert archive / Mississippi / Clay County

Weather alerts in Clay County, Mississippi, 2008

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

Clay County and its neighbors

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

Alerts: 163
Warnings: 47
Watches: 29
Advisories: 43
Busiest month: December25 alerts
Busiest day: December 10, 20087 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 5 tornado warnings covering Clay County in 2008 had a tornado report inside them.

Clay County, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	1	80%	0
Severe thunderstorm warnings	28	16	43%	12	75%	16 min
Flash flood warnings	2	1	50%	0

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Jackson, MS: tornado warnings	315	78	75%	186	81%	23 min
NWS Jackson, MS: severe thunderstorm warnings	823	370	55%	1,059	65%	21 min
NWS Jackson, MS: flash flood warnings	136	56	59%	134	79%	96 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 7, 2:34 PM CST	Lake Wind Advisory	JAN	27 hr
Jan 8, 1:11 PM CST	Mesoscale Discussion	SPC	2 hr
Jan 8, 3:59 PM CST	Tornado Watch	SPC	3 hr
Jan 8, 4:03 PM CST	Mesoscale Discussion	SPC	117 min
Jan 8, 5:30 PM CST	Severe Thunderstorm Warning	JAN	30 min
Jan 8, 6:00 PM CST	Severe Thunderstorm Warning	JAN	30 min
Jan 8, 6:28 PM CST	Severe Thunderstorm Warning	JAN	32 min
Jan 8, 6:36 PM CST	Tornado Watch	SPC	6 hr
Jan 10, 7:46 AM CST	Tornado Watch	SPC	8 hr
Jan 10, 9:23 AM CST	Mesoscale Discussion	SPC	67 min
Jan 10, 12:09 PM CST	Mesoscale Discussion	SPC	96 min
Jan 10, 1:32 PM CST	Tornado Warning	JAN	43 min
Jan 10, 1:42 PM CST	Mesoscale Discussion	SPC	93 min
Jan 22, 9:33 PM CST	Dense Fog Advisory	JAN	9 hr
Jan 25, 6:14 AM CST	Winter Weather Advisory	JAN	18 hr
Jan 25, 11:26 AM CST	Ice Storm Warning	JAN	13 hr
Jan 25, 12:24 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 25, 6:10 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 28, 1:02 AM CST	Dense Fog Advisory	JAN	8 hr
Jan 28, 2:48 PM CST	Lake Wind Advisory	JAN	33 hr
Jan 29, 3:41 AM CST	Wind Advisory	JAN	20 hr
Feb 4, 2:59 PM CST	Lake Wind Advisory	JAN	33 hr
Feb 5, 12:11 PM CST	Mesoscale Discussion	SPC	94 min
Feb 5, 3:09 PM CST	Tornado Watch PDS	SPC	9 hr
Feb 5, 10:01 PM CST	Tornado Watch	SPC	8 hr
Feb 6, 1:11 AM CST	Tornado Warning	JAN	19 min
Feb 6, 1:22 AM CST	Tornado Warning	JAN	23 min
Feb 6, 2:28 AM CST	Tornado Warning	JAN	47 min
Feb 6, 2:41 AM CST	Mesoscale Discussion	SPC	2 hr
Feb 16, 10:14 AM CST	Lake Wind Advisory	JAN	20 hr
Feb 17, 4:19 AM CST	Mesoscale Discussion	SPC	56 min
Feb 25, 5:01 AM CST	Dense Fog Advisory	JAN	4 hr
Feb 25, 3:31 PM CST	Lake Wind Advisory	JAN	26 hr
Feb 25, 11:20 PM CST	Mesoscale Discussion	SPC	85 min
Feb 26, 12:10 AM CST	Severe Thunderstorm Watch	SPC	7 hr
Feb 26, 2:50 AM CST	Mesoscale Discussion	SPC	85 min
Feb 29, 9:22 PM CST	Dense Fog Advisory	JAN	12 hr
Mar 2, 5:21 PM CST	Lake Wind Advisory	JAN	35 hr
Mar 3, 2:25 PM CST	Tornado Watch	SPC	11 hr
Mar 3, 5:58 PM CST	Mesoscale Discussion	SPC	62 min
Mar 7, 5:05 AM CST	Snow Advisory	JAN	23 hr
Mar 14, 3:32 AM CDT	Mesoscale Discussion	SPC	118 min
Mar 14, 10:36 PM CDT	Mesoscale Discussion	SPC	84 min
Mar 14, 11:01 PM CDT	Tornado Watch	SPC	3 hr
Mar 15, 1:47 AM CDT	Mesoscale Discussion	SPC	88 min
Mar 15, 8:43 AM CDT	Lake Wind Advisory	JAN	9 hr
Mar 16, 3:41 PM CDT	Lake Wind Advisory	JAN	63 hr
Mar 18, 10:51 PM CDT	Tornado Watch	SPC	8 hr
Mar 19, 2:35 AM CDT	Mesoscale Discussion	SPC	115 min
Mar 19, 4:55 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 19, 7:08 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 19, 7:21 AM CDT	Lake Wind Advisory	JAN	14 hr
Mar 24, 3:39 AM CDT	Freeze Warning	JAN	29 hr
Mar 25, 7:59 AM CDT	Red Flag Warning	JAN	11 hr
Apr 1, 12:42 AM CDT	Mesoscale Discussion	SPC	63 min
Apr 3, 12:16 PM CDT	Mesoscale Discussion	SPC	59 min
Apr 3, 2:59 PM CDT	Lake Wind Advisory	JAN	30 hr
Apr 4, 7:55 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 4, 9:48 AM CDT	Tornado Watch	SPC	9 hr
Apr 9, 3:00 PM CDT	Lake Wind Advisory	JAN	32 hr
Apr 11, 7:59 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 11, 10:15 AM CDT	Tornado Watch	SPC	5 hr
Apr 11, 11:59 AM CDT	Severe Thunderstorm Warning	JAN	61 min
Apr 11, 1:05 PM CDT	Severe Thunderstorm Warning	JAN	10 min
Apr 11, 1:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 13, 3:26 PM CDT	Freeze Watch	JAN	13 hr
Apr 14, 4:00 AM CDT	Freeze Warning	JAN	29 hr
Apr 18, 5:08 PM CDT	Mesoscale Discussion	SPC	37 min
Apr 18, 5:52 PM CDT	Severe Thunderstorm Warning	JAN	38 min
Apr 18, 6:25 PM CDT	Severe Thunderstorm Warning	JAN	65 min
Apr 18, 7:22 PM CDT	Severe Thunderstorm Warning	JAN	38 min
Apr 26, 1:48 PM CDT	Flash Flood Watch	JAN	25 hr
May 1, 9:39 PM CDT	Lake Wind Advisory	JAN	23 hr
May 2, 4:43 PM CDT	Tornado Watch	SPC	7 hr
May 2, 7:09 PM CDT	Mesoscale Discussion	SPC	96 min
May 2, 11:04 PM CDT	Mesoscale Discussion	SPC	86 min
May 2, 11:38 PM CDT	Tornado Watch	SPC	6 hr
May 3, 2:06 AM CDT	Severe Thunderstorm Warning	JAN	39 min
May 3, 2:16 AM CDT	Mesoscale Discussion	SPC	59 min
May 3, 2:48 AM CDT	Severe Thunderstorm Warning	JAN	42 min
May 8, 7:48 AM CDT	Mesoscale Discussion	SPC	87 min
May 8, 8:04 AM CDT	Tornado Watch	SPC	6 hr
May 8, 10:07 AM CDT	Mesoscale Discussion	SPC	83 min
May 8, 10:20 AM CDT	Lake Wind Advisory	JAN	9 hr
May 9, 11:08 PM CDT	Mesoscale Discussion	SPC	2 hr
May 10, 2:28 PM CDT	Mesoscale Discussion	SPC	2 hr
May 10, 10:07 PM CDT	Tornado Watch	SPC	5 hr
May 11, 12:45 AM CDT	Severe Thunderstorm Warning	JAN	15 min
May 11, 6:56 AM CDT	Lake Wind Advisory	JAN	11 hr
May 13, 4:24 PM CDT	Flash Flood Watch	JAN	44 hr
May 20, 4:45 PM CDT	Mesoscale Discussion	SPC	60 min
May 24, 5:31 PM CDT	Severe Thunderstorm Warning	JAN	29 min
May 24, 5:58 PM CDT	Severe Thunderstorm Warning	JAN	47 min
May 26, 4:43 PM CDT	Severe Thunderstorm Warning	JAN	47 min
May 26, 5:50 PM CDT	Severe Thunderstorm Warning	JAN	40 min
May 27, 2:12 PM CDT	Severe Thunderstorm Warning	JAN	48 min
Jun 1, 3:04 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 1, 6:15 PM CDT	Severe Thunderstorm Warning	JAN	60 min
Jun 1, 6:27 PM CDT	Mesoscale Discussion	SPC	63 min
Jun 12, 11:51 AM CDT	Mesoscale Discussion	SPC	54 min
Jun 14, 2:38 PM CDT	Severe Thunderstorm Warning	JAN	35 min
Jun 20, 1:37 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 20, 5:14 PM CDT	Severe Thunderstorm Warning	JAN	14 min
Jun 23, 2:44 PM CDT	Mesoscale Discussion	SPC	91 min
Jul 4, 2:29 PM CDT	Severe Thunderstorm Warning	JAN	11 min
Jul 6, 1:45 PM CDT	Severe Thunderstorm Warning	JAN	45 min
Jul 9, 5:29 PM CDT	Severe Thunderstorm Warning	JAN	61 min
Jul 21, 3:05 PM CDT	Heat Advisory	JAN	27 hr
Jul 22, 2:00 PM CDT	Severe Thunderstorm Warning	JAN	30 min
Jul 22, 3:02 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 23, 6:52 PM CDT	Severe Thunderstorm Warning	JAN	38 min
Jul 26, 4:07 AM CDT	Heat Advisory	JAN	4 days
Aug 1, 2:37 PM CDT	Excessive Heat Watch	JAN	47 hr
Aug 2, 4:30 AM CDT	Heat Advisory	JAN	33 hr
Aug 2, 2:52 PM CDT	Excessive Heat Warning	JAN	38 hr
Aug 2, 7:27 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 2, 7:35 PM CDT	Severe Thunderstorm Warning	JAN	40 min
Aug 2, 7:52 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 2, 8:16 PM CDT	Severe Thunderstorm Warning	JAN	29 min
Aug 2, 8:31 PM CDT	Severe Thunderstorm Warning	JAN	29 min
Aug 7, 2:44 PM CDT	Mesoscale Discussion	SPC	91 min
Aug 11, 2:47 PM CDT	Flash Flood Watch	JAN	30 hr
Aug 15, 10:00 PM CDT	Flash Flood Watch	JAN	13 hr
Aug 23, 4:57 AM CDT	Lake Wind Advisory	JAN	35 hr
Aug 23, 5:26 AM CDT	Flash Flood Watch	JAN	54 hr
Aug 25, 7:49 AM CDT	Flash Flood Warning	JAN	2 hr
Aug 31, 5:39 PM CDT	Wind Advisory	JAN	52 hr
Sep 1, 6:02 PM CDT	Lake Wind Advisory	JAN	4 hr
Sep 1, 10:17 PM CDT	Lake Wind Advisory	JAN	42 hr
Sep 11, 2:52 PM CDT	Lake Wind Advisory	JAN	67 hr
Sep 13, 4:38 AM CDT	Flash Flood Watch	JAN	35 hr
Sep 14, 9:21 AM CDT	Mesoscale Discussion	SPC	84 min
Oct 27, 5:06 AM CDT	Lake Wind Advisory	JAN	12 hr
Oct 27, 10:12 AM CDT	Red Flag Warning	JAN	8 hr
Oct 28, 4:51 AM CDT	Freeze Warning	JAN	28 hr
Oct 29, 4:43 AM CDT	Freeze Warning	JAN	27 hr
Nov 12, 9:40 PM CST	Dense Fog Advisory	JAN	11 hr
Nov 30, 4:35 AM CST	Lake Wind Advisory	JAN	13 hr
Dec 4, 4:21 AM CST	Lake Wind Advisory	JAN	11 hr
Dec 9, 4:27 AM CST	Lake Wind Advisory	JAN	14 hr
Dec 9, 2:18 PM CST	Mesoscale Discussion	SPC	87 min
Dec 9, 3:51 PM CST	Tornado Watch	SPC	9 hr
Dec 9, 4:39 PM CST	Flash Flood Watch	JAN	13 hr
Dec 9, 5:52 PM CST	Mesoscale Discussion	SPC	83 min
Dec 9, 6:19 PM CST	Lake Wind Advisory	JAN	10 hr
Dec 9, 8:07 PM CST	Severe Thunderstorm Warning	JAN	68 min
Dec 9, 8:20 PM CST	Flash Flood Warning	JAN	3 hr
Dec 9, 8:52 PM CST	Tornado Warning	JAN	32 min
Dec 10, 5:25 AM CST	Winter Storm Watch	JAN	11 hr
Dec 10, 4:13 PM CST	Lake Wind Advisory	JAN	18 hr
Dec 10, 4:24 PM CST	Winter Storm Warning	JAN	23 hr
Dec 10, 9:09 PM CST	River Flood Warning	JAN	5 days
Dec 11, 7:21 AM CST	Areal Flood Warning	JAN	4 hr
Dec 11, 11:43 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 11, 1:59 PM CST	Winter Weather Advisory	JAN	4 hr
Dec 13, 2:20 PM CST	Lake Wind Advisory	JAN	28 hr
Dec 16, 2:38 PM CST	Dense Fog Advisory	JAN	20 hr
Dec 17, 3:17 PM CST	Dense Fog Advisory	JAN	24 hr
Dec 18, 6:11 PM CST	Dense Fog Advisory	JAN	6 hr
Dec 21, 3:38 PM CST	Hard Freeze Warning	JAN	36 hr
Dec 23, 3:13 AM CST	Lake Wind Advisory	JAN	33 hr
Dec 24, 10:47 AM CST	Mesoscale Discussion	SPC	88 min
Dec 26, 4:00 PM CST	Lake Wind Advisory	JAN	28 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	28
Tornado Warning	5
Severe Thunderstorm Watch	4
Tornado Watch	15
Mesoscale Discussion	44
Flooding
Areal Flood Warning	1
Flash Flood Warning	2
River Flood Warning	1
Flash Flood Watch	7
Winter
Ice Storm Warning	1
Winter Storm Warning	1
Winter Storm Watch	1
Snow Advisory	1
Winter Weather Advisory	2
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	3
Cold
Freeze Warning	4
Hard Freeze Warning	1
Freeze Watch	1
Wind and dust
Lake Wind Advisory	27
Wind Advisory	2
Fire
Red Flag Warning	2
Fog and smoke
Dense Fog Advisory	8

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.