Alert archive / Tennessee / Henry County

Weather alerts in Henry County, Tennessee, 2019

115 weather alerts in 2019, 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 2019. Tap one for its archive.

Alerts
115
Warnings
15
Watches
21
Advisories
46
Busiest month
June21 alerts
Busiest day
March 9, 20196 alerts

Over time

By month

Warning verification

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

Henry County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings6350%1100%37 min
Flash flood warnings2150%0

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Memphis, TN: tornado warnings43979%3342%14 min
NWS Memphis, TN: severe thunderstorm warnings1617653%24771%23 min
NWS Memphis, TN: flash flood warnings471666%5058%69 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 18, 1:51 PM CSTWind AdvisoryMEG37 hr
Jan 19, 3:38 AM CSTWinter Weather AdvisoryMEG23 hr
Jan 20, 3:20 AM CSTWind AdvisoryMEG6 hr
Feb 5, 5:08 AM CSTDense Fog AdvisoryMEG25 hr
Feb 6, 6:50 PM CSTAreal Flood AdvisoryMEG3 hr
Feb 9, 3:28 PM CSTFlood WatchMEG60 hr
Feb 11, 12:40 PM CSTAreal Flood WarningMEG6 hr
Feb 11, 8:28 PM CSTAreal Flood WarningMEG6 hr
Feb 12, 2:31 AM CSTAreal Flood WarningMEG6 hr
Feb 15, 9:09 AM CSTWinter Weather AdvisoryMEG18 hr
Feb 18, 2:48 PM CSTFlash Flood WatchMEG37 hr
Feb 20, 4:06 AM CSTFlash Flood WatchMEG9 hr
Feb 20, 3:34 PM CSTFlash Flood WatchMEG3 days
Feb 20, 10:11 PM CSTDense Fog AdvisoryMEG11 hr
Feb 22, 2:26 PM CSTWind AdvisoryMEG30 hr
Feb 23, 12:26 PM CSTTornado WatchSPC8 hr
Feb 23, 2:09 PM CSTSpecial Weather StatementMEG66 min
Feb 23, 2:16 PM CSTFlash Flood WarningMEG3 hr
Feb 23, 2:34 PM CSTFlash Flood WarningMEG3 hr
Feb 23, 6:19 PM CSTSpecial Weather StatementMEG41 min
Feb 24, 3:45 AM CSTWind AdvisoryMEG2 hr
Feb 25, 12:50 PM CSTAreal Flood WarningMEG14 days
Mar 3, 9:16 AM CSTWinter Weather AdvisoryMEG3 hr
Mar 9, 4:20 AM CSTWind AdvisoryMEG14 hr
Mar 9, 7:16 AM CSTDense Fog AdvisoryMEG3 hr
Mar 9, 9:45 AM CSTMesoscale DiscussionSPC3 hr
Mar 9, 10:32 AM CSTTornado WatchSPC8 hr
Mar 9, 1:27 PM CSTMesoscale DiscussionSPC2 hr
Mar 9, 1:39 PM CSTSpecial Weather StatementMEG66 min
Mar 12, 3:10 PM CDTWind AdvisoryMEG52 hr
Mar 14, 2:37 AM CDTMesoscale DiscussionSPC83 min
Mar 14, 5:28 AM CDTTornado WatchSPC7 hr
Mar 14, 7:14 AM CDTMesoscale DiscussionSPC2 hr
Mar 14, 12:11 PM CDTTornado WatchSPC7 hr
Mar 30, 3:21 AM CDTFreeze WatchMEG11 hr
Mar 30, 3:21 AM CDTFreeze WatchMEG24 hr
Mar 30, 1:54 PM CDTMesoscale DiscussionSPC2 hr
Mar 30, 3:52 PM CDTMesoscale DiscussionSPC83 min
Mar 31, 3:01 AM CDTFreeze WarningMEG30 hr
Apr 5, 4:54 AM CDTDense Fog AdvisoryMEG4 hr
Apr 6, 4:29 AM CDTDense Fog AdvisoryMEG4 hr
Apr 9, 5:00 AM CDTDense Fog AdvisoryMEG5 hr
Apr 11, 3:48 AM CDTWind AdvisoryMEG15 hr
Apr 14, 3:02 PM CDTFrost AdvisoryMEG17 hr
Apr 17, 3:39 PM CDTFlash Flood WatchMEG28 hr
May 2, 4:49 PM CDTTornado WatchSPC5 hr
May 2, 6:37 PM CDTMesoscale DiscussionSPC83 min
Jun 7, 12:05 PM CDTFlash Flood WatchMEG15 hr
Jun 19, 12:35 PM CDTMesoscale DiscussionSPC115 min
Jun 19, 2:11 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 19, 4:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 19, 4:47 PM CDTSevere Thunderstorm WarningMEG27 min
Jun 19, 5:23 PM CDTSevere Thunderstorm WarningMEG22 min
Jun 19, 7:14 PM CDTSpecial Weather StatementMEG46 min
Jun 21, 3:19 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 5:14 PM CDTMesoscale DiscussionSPC91 min
Jun 21, 5:47 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 5:51 PM CDTSpecial Weather StatementMEG54 min
Jun 21, 5:54 PM CDTSevere Thunderstorm WarningMEG51 min
Jun 21, 6:25 PM CDTSevere Thunderstorm WarningMEG50 min
Jun 22, 8:14 AM CDTSpecial Weather StatementMEG46 min
Jun 22, 1:55 PM CDTMesoscale DiscussionSPC95 min
Jun 23, 1:02 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 23, 4:58 PM CDTMesoscale DiscussionSPC92 min
Jun 23, 5:30 PM CDTSpecial Weather StatementMEG45 min
Jun 23, 6:15 PM CDTSpecial Weather StatementMEG45 min
Jun 25, 6:00 AM CDTDense Fog AdvisoryMEG3 hr
Jun 29, 10:27 PM CDTAreal Flood AdvisoryMEG60 hr
Jul 4, 7:25 PM CDTSpecial Weather StatementMEG50 min
Jul 9, 5:05 PM CDTHeat AdvisoryMEG26 hr
Jul 10, 1:59 PM CDTSpecial Weather StatementMEG46 min
Jul 16, 1:34 PM CDTMesoscale DiscussionSPC2 hr
Jul 17, 3:09 PM CDTHeat AdvisoryMEG53 hr
Jul 17, 8:47 PM CDTSpecial Weather StatementMEG58 min
Jul 17, 9:30 PM CDTSevere Thunderstorm WarningMEG45 min
Jul 17, 9:44 PM CDTSpecial Weather StatementMEG46 min
Jul 17, 9:56 PM CDTAreal Flood AdvisoryMEG95 min
Jul 20, 3:50 AM CDTHeat AdvisoryMEG16 hr
Jul 22, 12:52 PM CDTSpecial Weather StatementMEG38 min
Jul 31, 3:30 AM CDTDense Fog AdvisoryMEG5 hr
Aug 5, 2:47 AM CDTDense Fog AdvisoryMEG6 hr
Aug 6, 3:47 PM CDTMesoscale DiscussionSPC118 min
Aug 6, 5:43 PM CDTMesoscale DiscussionSPC92 min
Aug 6, 8:19 PM CDTMesoscale DiscussionSPC86 min
Aug 6, 8:23 PM CDTSpecial Weather StatementMEG37 min
Aug 8, 2:06 AM CDTDense Fog AdvisoryMEG7 hr
Aug 9, 10:51 PM CDTDense Fog AdvisoryMEG10 hr
Aug 10, 3:54 AM CDTHeat AdvisoryMEG60 hr
Aug 10, 11:09 PM CDTDense Fog AdvisoryMEG10 hr
Aug 11, 3:21 AM CDTExcessive Heat WatchMEG37 hr
Aug 11, 3:21 AM CDTExcessive Heat WarningMEG65 hr
Aug 19, 3:59 AM CDTHeat AdvisoryMEG64 hr
Aug 20, 4:01 PM CDTMesoscale DiscussionSPC89 min
Aug 23, 2:39 AM CDTDense Fog AdvisoryMEG4 hr
Aug 25, 6:44 PM CDTAreal Flood AdvisoryMEG3 hr
Aug 28, 4:12 AM CDTDense Fog AdvisoryMEG3 hr
Sep 26, 2:46 AM CDTDense Fog AdvisoryMEG3 hr
Oct 9, 1:01 AM CDTDense Fog AdvisoryMEG10 hr
Oct 12, 9:31 PM CDTFrost AdvisoryMEG10 hr
Oct 14, 5:47 AM CDTDense Fog AdvisoryMEG4 hr
Oct 19, 11:55 PM CDTDense Fog AdvisoryMEG9 hr
Oct 21, 3:06 AM CDTTornado WatchSPC6 hr
Oct 21, 6:59 AM CDTMesoscale DiscussionSPC91 min
Oct 21, 7:55 AM CDTSpecial Weather StatementMEG50 min
Oct 25, 3:44 AM CDTFlash Flood WatchMEG34 hr
Oct 26, 6:03 AM CDTWind AdvisoryMEG9 hr
Oct 26, 1:42 PM CDTSevere Thunderstorm WarningMEG48 min
Oct 30, 3:07 PM CDTFreeze WatchMEG12 hr
Oct 31, 3:19 AM CDTFreeze WarningMEG30 hr
Nov 11, 4:25 AM CSTWind AdvisoryMEG22 hr
Nov 11, 6:06 PM CSTWinter Weather AdvisoryMEG9 hr
Nov 26, 12:11 PM CSTWind AdvisoryMEG18 hr
Nov 30, 2:52 PM CSTWind AdvisoryMEG24 hr
Dec 7, 9:15 PM CSTDense Fog AdvisoryMEG12 hr
Dec 13, 8:13 PM CSTDense Fog AdvisoryMEG14 hr

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 archive20182020

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.