Alert archive / Tennessee / Obion County

Weather alerts in Obion County, Tennessee, 2013

119 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Obion County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts: 119
Warnings: 36
Watches: 16
Advisories: 33
Busiest month: January19 alerts
Busiest day: January 30, 20137 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 3 tornado warnings covering Obion County in 2013 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 15 minutes after it went out.

Obion County, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	1	67%	1	100%	15 min
Severe thunderstorm warnings	9	2	78%	1	0%
Flash flood warnings	10	2	80%	3	33%	128 min

Each office's whole area, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Memphis, TN: tornado warnings	37	7	81%	12	67%	10 min
NWS Memphis, TN: severe thunderstorm warnings	213	69	68%	195	61%	21 min
NWS Memphis, TN: flash flood warnings	123	25	80%	99	57%	71 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 10, 5:40 PM CST	Mesoscale Discussion	SPC	2 hr
Jan 10, 8:57 PM CST	Special Weather Statement	MEG	33 min
Jan 10, 9:29 PM CST	Special Weather Statement	MEG	46 min
Jan 11, 10:23 PM CST	Flash Flood Watch	MEG	37 hr
Jan 13, 8:11 AM CST	River Flood Warning	MEG	12 hr
Jan 13, 11:02 AM CST	Areal Flood Warning	MEG	8 hr
Jan 14, 1:43 AM CST	Winter Weather Advisory	MEG	26 hr
Jan 15, 4:03 AM CST	Winter Weather Advisory	MEG	26 hr
Jan 16, 6:41 AM CST	River Flood Warning	MEG	29 hr
Jan 24, 3:14 AM CST	Freezing Rain Advisory	MEG	30 hr
Jan 29, 2:26 AM CST	Wind Advisory	MEG	24 hr
Jan 29, 5:37 PM CST	Tornado Watch	SPC	8 hr
Jan 29, 9:49 PM CST	Mesoscale Discussion	SPC	116 min
Jan 29, 9:55 PM CST	Severe Thunderstorm Warning	MEG	65 min
Jan 29, 10:48 PM CST	Severe Thunderstorm Warning	MEG	57 min
Jan 29, 11:43 PM CST	Flash Flood Warning	MEG	3 hr
Jan 30, 12:01 AM CST	Severe Thunderstorm Warning	MEG	44 min
Jan 30, 3:00 AM CST	Wind Advisory	MEG	15 hr
Jan 30, 6:11 AM CST	River Flood Warning	MEG	14 hr
Feb 2, 5:05 AM CST	Winter Weather Advisory	MEG	5 hr
Feb 5, 9:03 PM CST	Dense Fog Advisory	MEG	12 hr
Feb 18, 3:46 AM CST	Wind Advisory	MEG	20 hr
Mar 1, 3:49 AM CST	Winter Weather Advisory	MEG	17 hr
Mar 5, 3:45 AM CST	Wind Advisory	MEG	16 hr
Mar 9, 8:30 PM CST	Wind Advisory	MEG	22 hr
Mar 24, 3:08 AM CDT	Wind Advisory	MEG	19 hr
Mar 29, 11:17 PM CDT	Dense Fog Advisory	MEG	11 hr
Mar 30, 9:40 PM CDT	Dense Fog Advisory	MEG	11 hr
Apr 5, 2:17 AM CDT	Dense Fog Advisory	MEG	7 hr
Apr 5, 6:46 AM CDT	Freezing Fog Advisory	MEG	2 hr
Apr 10, 7:55 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 10, 8:28 PM CDT	Tornado Watch	SPC	7 hr
Apr 10, 11:08 PM CDT	Mesoscale Discussion	SPC	97 min
Apr 11, 3:22 AM CDT	Flash Flood Watch	MEG	13 hr
Apr 11, 4:51 AM CDT	Flash Flood Warning	MEG	4 hr
Apr 14, 11:37 AM CDT	River Flood Warning	MEG	32 hr
Apr 16, 2:54 PM CDT	Mesoscale Discussion	SPC	96 min
Apr 18, 4:37 AM CDT	Wind Advisory	MEG	13 hr
Apr 18, 12:48 PM CDT	Mesoscale Discussion	SPC	87 min
Apr 19, 3:55 AM CDT	Frost Advisory	MEG	28 hr
Apr 24, 3:52 PM CDT	Frost Advisory	MEG	17 hr
Apr 29, 7:03 AM CDT	River Flood Warning	MEG	9 days
May 12, 3:36 AM CDT	Frost Advisory	MEG	28 hr
May 18, 2:23 AM CDT	Dense Fog Advisory	MEG	7 hr
May 21, 12:50 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
May 21, 2:17 AM CDT	Special Weather Statement	MEG	43 min
May 21, 2:52 AM CDT	Special Weather Statement	MEG	38 min
May 21, 7:47 AM CDT	Mesoscale Discussion	SPC	58 min
May 21, 8:38 AM CDT	Special Weather Statement	MEG	52 min
May 21, 2:42 PM CDT	Mesoscale Discussion	SPC	63 min
May 21, 3:00 PM CDT	Tornado Watch	SPC	7 hr
May 30, 7:32 PM CDT	Severe Thunderstorm Warning	MEG	58 min
May 31, 3:44 PM CDT	Flash Flood Watch	MEG	23 hr
Jun 1, 3:46 AM CDT	Mesoscale Discussion	SPC	29 min
Jun 1, 10:51 AM CDT	Flash Flood Warning	MEG	4 hr
Jun 5, 9:28 PM CDT	Severe Thunderstorm Warning	MEG	32 min
Jun 5, 9:49 PM CDT	Severe Thunderstorm Warning	MEG	26 min
Jun 5, 10:00 PM CDT	Severe Thunderstorm Warning	MEG	15 min
Jun 5, 10:04 PM CDT	Flash Flood Warning	MEG	116 min
Jun 5, 10:12 PM CDT	Severe Thunderstorm Warning	MEG	48 min
Jun 9, 1:28 PM CDT	Mesoscale Discussion	SPC	62 min
Jun 9, 3:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 9, 5:03 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 17, 3:49 PM CDT	Areal Flood Warning	MEG	6 hr
Jun 27, 4:16 AM CDT	Heat Advisory	MEG	16 hr
Jun 28, 4:17 AM CDT	Mesoscale Discussion	SPC	58 min
Jul 6, 4:10 PM CDT	Special Weather Statement	MEG	35 min
Jul 6, 4:59 PM CDT	Special Weather Statement	MEG	46 min
Jul 6, 6:58 PM CDT	Flash Flood Warning	MEG	3 hr
Jul 19, 3:29 AM CDT	Dense Fog Advisory	MEG	6 hr
Aug 3, 12:15 PM CDT	Areal Flood Warning	MEG	6 hr
Aug 4, 4:01 AM CDT	Dense Fog Advisory	MEG	4 hr
Aug 6, 8:45 AM CDT	Flash Flood Warning	MEG	3 hr
Aug 6, 9:14 AM CDT	Flash Flood Watch	MEG	7 hr
Aug 7, 6:36 AM CDT	Mesoscale Discussion	SPC	114 min
Aug 8, 8:37 PM CDT	Flash Flood Watch	MEG	8 hr
Aug 10, 9:08 AM CDT	Flash Flood Warning	MEG	6 hr
Aug 12, 3:52 PM CDT	Mesoscale Discussion	SPC	83 min
Oct 5, 2:15 PM CDT	Mesoscale Discussion	SPC	3 hr
Oct 5, 6:37 PM CDT	Tornado Warning	MEG	38 min
Oct 5, 7:01 PM CDT	Mesoscale Discussion	SPC	119 min
Oct 5, 7:10 PM CDT	Tornado Warning	MEG	50 min
Oct 5, 7:56 PM CDT	Tornado Warning	MEG	34 min
Oct 10, 11:03 PM CDT	Dense Fog Advisory	MEG	10 hr
Oct 12, 11:16 PM CDT	Dense Fog Advisory	MEG	10 hr
Oct 19, 3:14 AM CDT	Frost Advisory	MEG	29 hr
Oct 23, 3:11 PM CDT	Freeze Watch	MEG	24 hr
Oct 24, 3:29 PM CDT	Freeze Warning	MEG	18 hr
Oct 25, 3:46 AM CDT	Freeze Warning	MEG	29 hr
Oct 31, 9:21 AM CDT	Wind Advisory	MEG	8 hr
Oct 31, 7:39 PM CDT	Mesoscale Discussion	SPC	66 min
Oct 31, 7:54 PM CDT	Tornado Watch	SPC	5 hr
Nov 11, 2:31 PM CST	Wind Advisory	MEG	27 hr
Nov 16, 1:57 PM CST	Wind Advisory	MEG	26 hr
Nov 17, 2:06 AM CST	Mesoscale Discussion	SPC	84 min
Nov 17, 10:17 AM CST	Mesoscale Discussion	SPC	118 min
Nov 17, 10:43 AM CST	Tornado Watch	SPC	8 hr
Nov 17, 11:57 AM CST	Mesoscale Discussion	SPC	93 min
Nov 17, 2:43 PM CST	Mesoscale Discussion	SPC	62 min
Nov 17, 3:46 PM CST	Mesoscale Discussion	SPC	89 min
Dec 2, 8:22 PM CST	Dense Fog Advisory	MEG	15 hr
Dec 4, 2:49 AM CST	Winter Storm Watch	MEG	24 hr
Dec 4, 4:16 PM CST	Winter Storm Warning	MEG	50 hr
Dec 5, 3:01 AM CST	Ice Storm Warning	MEG	40 hr
Dec 6, 6:46 AM CST	Mesoscale Discussion	SPC	5 hr
Dec 6, 11:31 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 6, 3:02 PM CST	Mesoscale Discussion	SPC	3 hr
Dec 7, 4:20 AM CST	Winter Weather Advisory	MEG	31 hr
Dec 19, 1:34 PM CST	Flash Flood Watch	MEG	58 hr
Dec 20, 1:06 PM CST	Wind Advisory	MEG	35 hr
Dec 20, 9:01 PM CST	River Flood Warning	MEG	3 days
Dec 20, 9:01 PM CST	River Flood Warning	MEG	7 days
Dec 21, 10:45 AM CST	Mesoscale Discussion	SPC	60 min
Dec 21, 12:01 PM CST	Tornado Watch	SPC	8 hr
Dec 21, 2:50 PM CST	Mesoscale Discussion	SPC	55 min
Dec 21, 3:08 PM CST	Flash Flood Warning	MEG	6 hr
Dec 21, 4:31 PM CST	Severe Thunderstorm Warning	MEG	44 min
Dec 21, 9:22 PM CST	Flash Flood Warning	MEG	53 min
Dec 21, 10:15 PM CST	Flash Flood Warning	MEG	105 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	9
Tornado Warning	3
Severe Thunderstorm Watch	2
Tornado Watch	6
Mesoscale Discussion	27
Special Weather Statement	7
Flooding
Areal Flood Warning	3
Flash Flood Warning	10
River Flood Warning	7
Flash Flood Watch	6
Winter
Ice Storm Warning	1
Winter Storm Warning	1
Winter Storm Watch	1
Freezing Rain Advisory	1
Winter Weather Advisory	5
Heat
Heat Advisory	1
Cold
Freeze Warning	2
Freeze Watch	1
Frost Advisory	4
Wind and dust
Wind Advisory	11
Fog and smoke
Dense Fog Advisory	10
Freezing Fog Advisory	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 2012 2014

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.