Alert archive / Alabama / Henry County

Weather alerts in Henry County, Alabama, 2019

103 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
103
Warnings
27
Watches
10
Advisories
19
Busiest month
April24 alerts
Busiest day
April 19, 201913 alerts

Over time

By month

Warning verification

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

3 of 5 tornado warnings covering Henry County in 2019 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 3 minutes after it went out.

Henry County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings5340%1100%3 min
Severe thunderstorm warnings191521%250%24 min
Flash flood warnings00

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Tallahassee, FL: tornado warnings742073%3278%11 min
NWS Tallahassee, FL: severe thunderstorm warnings23217027%35187%25 min
NWS Tallahassee, FL: flash flood warnings161225%1894%66 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 4, 4:03 AM CSTTornado WarningTAE27 min
Jan 4, 4:34 AM CSTSevere Thunderstorm WarningTAE26 min
Jan 4, 4:37 AM CSTTornado WarningTAE12 min
Jan 8, 1:43 AM CSTDense Fog AdvisoryTAE7 hr
Jan 19, 3:21 PM CSTTornado WatchSPC6 hr
Jan 19, 5:38 PM CSTMesoscale DiscussionSPC97 min
Jan 19, 5:45 PM CSTSevere Thunderstorm WarningTAE60 min
Jan 23, 8:05 AM CSTWind AdvisoryTAE16 hr
Jan 23, 7:19 PM CSTSevere Thunderstorm WarningTAE71 min
Feb 3, 10:03 PM CSTDense Fog AdvisoryTAE11 hr
Feb 12, 9:38 AM CSTMesoscale DiscussionSPC2 hr
Feb 12, 12:17 PM CSTSpecial Weather StatementTAE43 min
Mar 3, 9:59 AM CSTMesoscale DiscussionSPC2 hr
Mar 3, 11:24 AM CSTTornado WatchSPC10 hr
Mar 3, 12:02 PM CSTMesoscale DiscussionSPC58 min
Mar 3, 12:47 PM CSTSevere Thunderstorm WarningTAE28 min
Mar 3, 3:22 PM CSTMesoscale DiscussionSPC113 min
Mar 3, 3:53 PM CSTSevere Thunderstorm WarningTAE52 min
Mar 3, 4:11 PM CSTSevere Thunderstorm WarningTAE49 min
Mar 3, 4:39 PM CSTSevere Thunderstorm WarningTAE51 min
Mar 3, 4:39 PM CSTTornado WarningTAE36 min
Mar 4, 8:27 PM CSTFreeze WatchTAE18 hr
Mar 5, 2:33 AM CSTFreeze WarningTAE29 hr
Mar 6, 1:46 AM CSTFreeze WarningTAE30 hr
Mar 9, 2:43 AM CSTDense Fog AdvisoryTAE5 hr
Mar 10, 7:46 PM CDTDense Fog AdvisoryTAE14 hr
Apr 2, 5:25 AM CDTDense Fog AdvisoryTAE3 hr
Apr 6, 2:20 AM CDTDense Fog AdvisoryTAE7 hr
Apr 6, 8:21 PM CDTAreal Flood AdvisoryTAE54 min
Apr 9, 7:05 PM CDTSpecial Weather StatementTAE40 min
Apr 13, 2:37 PM CDTWind AdvisoryTAE30 hr
Apr 14, 2:45 AM CDTTornado WatchSPC7 hr
Apr 14, 7:28 AM CDTMesoscale DiscussionSPC3 hr
Apr 14, 9:12 AM CDTTornado WarningTAE33 min
Apr 14, 9:40 AM CDTTornado WatchSPC6 hr
Apr 14, 9:47 AM CDTSpecial Weather StatementTAE28 min
Apr 14, 10:07 AM CDTMesoscale DiscussionSPC83 min
Apr 18, 8:54 PM CDTMesoscale DiscussionSPC96 min
Apr 18, 10:12 PM CDTSpecial Weather StatementTAE63 min
Apr 18, 11:44 PM CDTMesoscale DiscussionSPC2 hr
Apr 19, 12:33 AM CDTTornado WatchSPC9 hr
Apr 19, 12:59 AM CDTWind AdvisoryTAE18 hr
Apr 19, 1:18 AM CDTSpecial Weather StatementTAE57 min
Apr 19, 2:14 AM CDTSpecial Weather StatementTAE61 min
Apr 19, 2:42 AM CDTMesoscale DiscussionSPC2 hr
Apr 19, 3:12 AM CDTSpecial Weather StatementTAE63 min
Apr 19, 4:55 AM CDTSevere Thunderstorm WarningTAE50 min
Apr 19, 5:28 AM CDTMesoscale DiscussionSPC2 hr
Apr 19, 5:45 AM CDTSpecial Weather StatementTAE30 min
Apr 19, 6:15 AM CDTSevere Thunderstorm WarningTAE28 min
May 4, 11:58 AM CDTMesoscale DiscussionSPC77 min
May 4, 3:28 PM CDTMesoscale DiscussionSPC92 min
May 4, 5:12 PM CDTSpecial Weather StatementTAE48 min
May 4, 6:10 PM CDTSpecial Weather StatementTAE50 min
May 9, 5:26 PM CDTSpecial Weather StatementTAE34 min
May 9, 6:01 PM CDTSpecial Weather StatementTAE44 min
May 11, 12:32 PM CDTSpecial Weather StatementTAE43 min
May 11, 1:15 PM CDTMesoscale DiscussionSPC2 hr
May 12, 8:59 AM CDTSevere Thunderstorm WatchSPC5 hr
May 12, 10:03 AM CDTSevere Thunderstorm WarningTAE42 min
May 12, 10:37 AM CDTSevere Thunderstorm WarningTAE23 min
May 12, 10:55 AM CDTSevere Thunderstorm WarningTAE35 min
May 12, 11:11 AM CDTMesoscale DiscussionSPC64 min
May 30, 6:05 AM CDTDense Fog AdvisoryTAE3 hr
Jun 7, 11:58 AM CDTMesoscale DiscussionSPC2 hr
Jun 8, 1:15 PM CDTMesoscale DiscussionSPC2 hr
Jun 9, 4:58 PM CDTSpecial Weather StatementTAE32 min
Jun 19, 4:40 PM CDTSpecial Weather StatementTAE35 min
Jun 20, 11:02 AM CDTMesoscale DiscussionSPC118 min
Jun 20, 1:00 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 20, 3:20 PM CDTSpecial Weather StatementTAE25 min
Jun 20, 5:04 PM CDTSevere Thunderstorm WarningTAE26 min
Jun 20, 6:16 PM CDTMesoscale DiscussionSPC89 min
Jun 20, 7:44 PM CDTSpecial Weather StatementTAE31 min
Jun 22, 8:50 PM CDTSpecial Weather StatementTAE40 min
Jul 9, 8:56 PM CDTSpecial Weather StatementTAE49 min
Jul 9, 8:59 PM CDTSevere Thunderstorm WarningTAE11 min
Jul 12, 6:45 PM CDTSpecial Weather StatementTAE45 min
Jul 18, 4:59 PM CDTSevere Thunderstorm WarningTAE46 min
Jul 18, 5:26 PM CDTSevere Thunderstorm WarningTAE49 min
Jul 19, 2:19 PM CDTSevere Thunderstorm WarningTAE41 min
Jul 19, 2:57 PM CDTSevere Thunderstorm WarningTAE17 min
Aug 1, 8:01 PM CDTSpecial Weather StatementTAE44 min
Aug 1, 8:44 PM CDTSpecial Weather StatementTAE61 min
Aug 1, 9:02 PM CDTAreal Flood AdvisoryTAE118 min
Aug 1, 9:52 PM CDTAreal Flood AdvisoryTAE113 min
Aug 12, 3:58 AM CDTHeat AdvisoryTAE13 hr
Aug 13, 2:44 AM CDTHeat AdvisoryTAE16 hr
Aug 14, 2:07 AM CDTHeat AdvisoryTAE16 hr
Aug 14, 1:28 PM CDTSpecial Weather StatementTAE47 min
Aug 14, 1:38 PM CDTMesoscale DiscussionSPC2 hr
Aug 14, 2:10 PM CDTSpecial Weather StatementTAE50 min
Aug 19, 2:55 PM CDTSevere Thunderstorm WarningTAE35 min
Oct 18, 3:00 PM CDTWind AdvisoryTAE28 hr
Nov 11, 1:06 PM CSTFreeze WatchTAE12 hr
Nov 12, 12:51 AM CSTFreeze WarningTAE31 hr
Dec 1, 4:50 AM CSTSpecial Weather StatementTAE55 min
Dec 13, 3:47 PM CSTMesoscale DiscussionSPC118 min
Dec 13, 4:42 PM CSTDense Fog AdvisoryTAE8 hr
Dec 17, 2:13 AM CSTMesoscale DiscussionSPC92 min
Dec 17, 6:30 AM CSTTornado WarningTAE17 min
Dec 17, 6:54 AM CSTTornado WatchSPC7 hr
Dec 21, 2:31 AM CSTWind AdvisoryTAE40 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.