Alert archive / Tennessee / Henry County

Weather alerts in Henry County, Tennessee, 2013

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

Henry County and its neighbors

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

Alerts
133
Warnings
32
Watches
18
Advisories
37
Busiest month
December19 alerts
Busiest day
June 27, 20139 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 1 tornado warnings covering Henry County in 2013 had a tornado report inside them.

Henry County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings13469%3100%13 min
Flash flood warnings120100%0

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Memphis, TN: tornado warnings37781%1267%10 min
NWS Memphis, TN: severe thunderstorm warnings2136968%19561%21 min
NWS Memphis, TN: flash flood warnings1232580%9957%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.

IssuedProductOfficeLasted
Jan 10, 9:34 PM CSTSpecial Weather StatementMEG56 min
Jan 11, 10:23 PM CSTFlash Flood WatchMEG37 hr
Jan 13, 11:30 AM CSTFlash Flood WatchMEG8 hr
Jan 13, 4:25 PM CSTAreal Flood WarningMEG6 hr
Jan 14, 1:43 AM CSTWinter Weather AdvisoryMEG26 hr
Jan 15, 4:03 AM CSTWinter Weather AdvisoryMEG26 hr
Jan 15, 10:48 AM CSTMesoscale DiscussionSPC4 hr
Jan 15, 2:34 PM CSTMesoscale DiscussionSPC4 hr
Jan 24, 3:14 AM CSTFreezing Rain AdvisoryMEG30 hr
Jan 26, 4:02 AM CSTFreezing Fog AdvisoryMEG5 hr
Jan 29, 2:26 AM CSTWind AdvisoryMEG24 hr
Jan 29, 9:49 PM CSTMesoscale DiscussionSPC116 min
Jan 29, 10:07 PM CSTTornado WatchSPC6 hr
Jan 30, 12:27 AM CSTSevere Thunderstorm WarningMEG48 min
Jan 30, 3:00 AM CSTWind AdvisoryMEG15 hr
Feb 2, 5:05 AM CSTWinter Weather AdvisoryMEG5 hr
Feb 5, 9:03 PM CSTDense Fog AdvisoryMEG12 hr
Feb 18, 3:46 AM CSTWind AdvisoryMEG20 hr
Mar 1, 3:49 AM CSTWinter Weather AdvisoryMEG17 hr
Mar 5, 3:45 AM CSTWind AdvisoryMEG16 hr
Mar 9, 8:30 PM CSTWind AdvisoryMEG22 hr
Mar 24, 3:08 AM CDTWind AdvisoryMEG19 hr
Mar 24, 10:53 AM CDTSpecial Weather StatementMEG37 min
Mar 24, 11:13 AM CDTSpecial Weather StatementMEG17 min
Mar 24, 11:35 AM CDTSpecial Weather StatementMEG10 min
Mar 29, 11:17 PM CDTDense Fog AdvisoryMEG11 hr
Mar 30, 9:40 PM CDTDense Fog AdvisoryMEG11 hr
Apr 5, 2:17 AM CDTDense Fog AdvisoryMEG7 hr
Apr 5, 6:46 AM CDTFreezing Fog AdvisoryMEG2 hr
Apr 10, 8:28 PM CDTTornado WatchSPC7 hr
Apr 11, 3:22 AM CDTFlash Flood WatchMEG13 hr
Apr 11, 7:48 AM CDTFlash Flood WarningMEG3 hr
Apr 16, 2:54 PM CDTMesoscale DiscussionSPC96 min
Apr 17, 9:30 AM CDTMesoscale DiscussionSPC2 hr
Apr 18, 4:37 AM CDTWind AdvisoryMEG13 hr
Apr 18, 12:48 PM CDTMesoscale DiscussionSPC87 min
Apr 18, 8:57 PM CDTMesoscale DiscussionSPC63 min
Apr 19, 3:55 AM CDTFrost AdvisoryMEG28 hr
Apr 24, 3:52 PM CDTFrost AdvisoryMEG17 hr
Apr 27, 7:33 PM CDTFlash Flood WarningMEG3 hr
Apr 27, 8:08 PM CDTFlash Flood WarningMEG3 hr
Apr 27, 8:38 PM CDTMesoscale DiscussionSPC67 min
Apr 27, 8:49 PM CDTFlash Flood WarningMEG3 hr
Apr 29, 5:23 AM CDTDense Fog AdvisoryMEG4 hr
May 12, 3:36 AM CDTFrost AdvisoryMEG28 hr
May 18, 2:23 AM CDTDense Fog AdvisoryMEG7 hr
May 21, 3:32 AM CDTSpecial Weather StatementMEG28 min
May 21, 4:00 AM CDTSpecial Weather StatementMEG30 min
May 21, 7:47 AM CDTMesoscale DiscussionSPC58 min
May 21, 9:24 AM CDTSpecial Weather StatementMEG51 min
May 21, 3:00 PM CDTTornado WatchSPC7 hr
May 21, 6:23 PM CDTMesoscale DiscussionSPC67 min
May 30, 4:45 PM CDTSpecial Weather StatementMEG30 min
May 30, 7:32 PM CDTSevere Thunderstorm WarningMEG58 min
May 31, 3:44 PM CDTFlash Flood WatchMEG23 hr
Jun 5, 7:55 PM CDTSevere Thunderstorm WarningMEG50 min
Jun 9, 3:35 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 9, 5:03 PM CDTMesoscale DiscussionSPC87 min
Jun 9, 7:09 PM CDTSpecial Weather StatementMEG36 min
Jun 9, 7:52 PM CDTSpecial Weather StatementMEG8 min
Jun 18, 1:12 AM CDTAreal Flood AdvisoryMEG2 hr
Jun 24, 2:52 PM CDTSevere Thunderstorm WarningMEG38 min
Jun 24, 3:30 PM CDTSevere Thunderstorm WarningMEG45 min
Jun 26, 8:56 PM CDTMesoscale DiscussionSPC94 min
Jun 26, 10:30 PM CDTSpecial Weather StatementMEG30 min
Jun 26, 11:02 PM CDTSpecial Weather StatementMEG28 min
Jun 26, 11:23 PM CDTSpecial Weather StatementMEG37 min
Jun 26, 11:45 PM CDTSevere Thunderstorm WarningMEG45 min
Jun 26, 11:56 PM CDTMesoscale DiscussionSPC94 min
Jun 27, 12:09 AM CDTFlash Flood WarningMEG3 hr
Jun 27, 12:26 AM CDTSevere Thunderstorm WarningMEG49 min
Jun 27, 4:16 AM CDTHeat AdvisoryMEG16 hr
Jul 5, 5:22 PM CDTSpecial Weather StatementMEG23 min
Jul 5, 5:46 PM CDTSpecial Weather StatementMEG44 min
Jul 6, 1:04 AM CDTAreal Flood AdvisoryMEG3 hr
Jul 6, 6:37 PM CDTSpecial Weather StatementMEG23 min
Jul 6, 7:12 PM CDTSpecial Weather StatementMEG33 min
Jul 6, 8:17 PM CDTSpecial Weather StatementMEG13 min
Jul 6, 8:34 PM CDTFlash Flood WarningMEG3 hr
Jul 6, 11:39 PM CDTFlash Flood WarningMEG2 hr
Jul 6, 11:46 PM CDTFlash Flood WarningMEG119 min
Jul 7, 1:43 AM CDTFlash Flood WarningMEG4 hr
Jul 19, 3:29 AM CDTDense Fog AdvisoryMEG6 hr
Jul 22, 3:57 AM CDTSpecial Weather StatementMEG48 min
Aug 4, 4:01 AM CDTDense Fog AdvisoryMEG4 hr
Aug 6, 9:14 AM CDTFlash Flood WatchMEG7 hr
Aug 7, 6:36 AM CDTMesoscale DiscussionSPC114 min
Aug 8, 8:37 PM CDTFlash Flood WatchMEG8 hr
Aug 10, 9:08 AM CDTFlash Flood WarningMEG6 hr
Aug 12, 5:29 PM CDTFlash Flood WatchMEG6 hr
Aug 12, 6:23 PM CDTFlash Flood WarningMEG4 hr
Aug 12, 6:42 PM CDTSpecial Weather StatementMEG48 min
Aug 12, 6:55 PM CDTSevere Thunderstorm WarningMEG50 min
Oct 5, 7:01 PM CDTMesoscale DiscussionSPC119 min
Oct 10, 11:03 PM CDTDense Fog AdvisoryMEG10 hr
Oct 12, 11:16 PM CDTDense Fog AdvisoryMEG10 hr
Oct 19, 3:14 AM CDTFrost AdvisoryMEG29 hr
Oct 20, 4:35 PM CDTFrost AdvisoryMEG15 hr
Oct 23, 3:11 PM CDTFreeze WatchMEG24 hr
Oct 24, 3:29 PM CDTFreeze WarningMEG18 hr
Oct 25, 3:46 AM CDTFreeze WarningMEG29 hr
Oct 31, 7:39 PM CDTMesoscale DiscussionSPC66 min
Oct 31, 7:54 PM CDTTornado WatchSPC5 hr
Oct 31, 9:23 PM CDTSevere Thunderstorm WarningMEG52 min
Oct 31, 9:48 PM CDTSevere Thunderstorm WarningMEG27 min
Nov 11, 2:31 PM CSTWind AdvisoryMEG27 hr
Nov 16, 1:57 PM CSTWind AdvisoryMEG26 hr
Nov 17, 10:17 AM CSTMesoscale DiscussionSPC118 min
Nov 17, 10:43 AM CSTTornado WatchSPC8 hr
Nov 17, 11:57 AM CSTMesoscale DiscussionSPC93 min
Nov 17, 2:43 PM CSTMesoscale DiscussionSPC62 min
Nov 17, 3:46 PM CSTMesoscale DiscussionSPC89 min
Nov 17, 4:48 PM CSTSevere Thunderstorm WarningMEG42 min
Nov 17, 5:36 PM CSTSpecial Weather StatementMEG39 min
Dec 2, 8:22 PM CSTDense Fog AdvisoryMEG15 hr
Dec 4, 2:49 AM CSTWinter Storm WatchMEG24 hr
Dec 4, 4:16 PM CSTWinter Storm WarningMEG50 hr
Dec 5, 3:01 AM CSTIce Storm WarningMEG40 hr
Dec 6, 6:46 AM CSTMesoscale DiscussionSPC5 hr
Dec 6, 11:31 AM CSTMesoscale DiscussionSPC4 hr
Dec 6, 3:02 PM CSTMesoscale DiscussionSPC3 hr
Dec 7, 4:20 AM CSTWinter Weather AdvisoryMEG31 hr
Dec 8, 2:48 AM CSTIce Storm WarningMEG6 hr
Dec 19, 1:34 PM CSTFlash Flood WatchMEG58 hr
Dec 20, 1:06 PM CSTWind AdvisoryMEG35 hr
Dec 21, 10:45 AM CSTMesoscale DiscussionSPC60 min
Dec 21, 12:01 PM CSTTornado WatchSPC8 hr
Dec 21, 2:50 PM CSTMesoscale DiscussionSPC55 min
Dec 21, 5:12 PM CSTSevere Thunderstorm WarningMEG48 min
Dec 21, 5:46 PM CSTTornado WatchSPC6 hr
Dec 21, 7:09 PM CSTFlash Flood WarningMEG5 hr
Dec 21, 7:17 PM CSTSevere Thunderstorm WarningMEG43 min
Dec 21, 7:19 PM CSTTornado WarningMEG41 min

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20122014

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.