Alert archive / Florida / Leon County

Weather alerts in Leon County, Florida, 2017

129 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Leon County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts
129
Warnings
41
Watches
14
Advisories
25
Busiest month
January32 alerts
Busiest day
January 22, 201719 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 3 tornado warnings covering Leon County in 2017 had a tornado report inside them.

Leon County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings30100%0
Severe thunderstorm warnings261735%5891%15 min
Flash flood warnings220%3100%59 min

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Tallahassee, FL: tornado warnings802470%5784%15 min
NWS Tallahassee, FL: severe thunderstorm warnings27617437%49286%24 min
NWS Tallahassee, FL: flash flood warnings161131%20100%80 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 2, 4:46 PM ESTTornado WatchSPC8 hr
Jan 2, 9:15 PM ESTMesoscale DiscussionSPC60 min
Jan 7, 2:43 PM ESTWind Chill AdvisoryTAE18 hr
Jan 7, 2:59 PM ESTFreeze WarningTAE18 hr
Jan 18, 2:23 AM ESTDense Fog AdvisoryTAE9 hr
Jan 18, 11:46 PM ESTDense Fog AdvisoryTAE11 hr
Jan 21, 1:06 PM ESTMesoscale DiscussionSPC114 min
Jan 21, 2:12 PM ESTTornado WatchSPC5 hr
Jan 21, 4:03 PM ESTMesoscale DiscussionSPC57 min
Jan 21, 6:05 PM ESTMesoscale DiscussionSPC55 min
Jan 22, 2:55 AM ESTMesoscale DiscussionSPC65 min
Jan 22, 3:20 AM ESTTornado WatchSPC9 hr
Jan 22, 3:39 AM ESTWind AdvisoryTAE14 hr
Jan 22, 6:33 AM ESTSevere Thunderstorm WarningTAE42 min
Jan 22, 6:34 AM ESTMesoscale DiscussionSPC86 min
Jan 22, 7:09 AM ESTSevere Thunderstorm WarningTAE36 min
Jan 22, 7:11 AM ESTMesoscale DiscussionSPC2 hr
Jan 22, 8:37 AM ESTSevere Thunderstorm WarningTAE38 min
Jan 22, 8:44 AM ESTTornado WarningTAE31 min
Jan 22, 9:09 AM ESTTornado WarningTAE36 min
Jan 22, 9:11 AM ESTMesoscale DiscussionSPC64 min
Jan 22, 10:16 AM ESTMesoscale DiscussionSPC59 min
Jan 22, 10:38 AM ESTTornado WarningTAE37 min
Jan 22, 11:25 AM ESTMesoscale DiscussionSPC95 min
Jan 22, 12:47 PM ESTTornado Watch PDSSPC7 hr
Jan 22, 1:36 PM ESTMesoscale DiscussionSPC54 min
Jan 22, 3:02 PM ESTMesoscale DiscussionSPC58 min
Jan 22, 3:10 PM ESTSevere Thunderstorm WarningTAE20 min
Jan 22, 3:26 PM ESTSevere Thunderstorm WarningTAE34 min
Jan 23, 2:02 AM ESTWind AdvisoryTAE14 hr
Jan 23, 10:33 AM ESTRiver Flood WarningTAE5 days
Jan 23, 11:01 AM ESTRiver Flood WarningTAE4 days
Feb 2, 2:10 AM ESTDense Fog AdvisoryTAE8 hr
Feb 3, 5:00 AM ESTDense Fog AdvisoryTAE5 hr
Feb 7, 3:44 PM ESTMesoscale DiscussionSPC91 min
Feb 7, 5:33 PM ESTSevere Thunderstorm WatchSPC4 hr
Feb 7, 6:08 PM ESTSevere Thunderstorm WarningTAE67 min
Feb 7, 6:24 PM ESTMesoscale DiscussionSPC96 min
Feb 7, 6:30 PM ESTSevere Thunderstorm WarningTAE60 min
Feb 8, 3:45 PM ESTMesoscale DiscussionSPC60 min
Feb 12, 1:32 AM ESTDense Fog AdvisoryTAE7 hr
Feb 19, 3:15 AM ESTDense Fog AdvisoryTAE7 hr
Mar 10, 4:13 AM ESTDense Fog AdvisoryTAE4 hr
Mar 14, 2:23 PM EDTFreeze WatchTAE13 hr
Mar 15, 3:00 AM EDTFreeze WarningTAE31 hr
Mar 16, 2:51 PM EDTFreeze WarningTAE18 hr
Mar 29, 6:26 AM EDTDense Fog AdvisoryTAE4 hr
Apr 3, 1:32 PM EDTTornado WatchSPC6 hr
Apr 3, 3:21 PM EDTMesoscale DiscussionSPC54 min
Apr 3, 3:42 PM EDTSevere Thunderstorm WarningTAE33 min
Apr 3, 4:13 PM EDTSevere Thunderstorm WarningTAE32 min
Apr 5, 11:38 AM EDTMesoscale DiscussionSPC97 min
Apr 7, 3:09 AM EDTRed Flag WarningTAE16 hr
Apr 28, 4:56 AM EDTDense Fog AdvisoryTAE4 hr
May 4, 8:27 AM EDTMesoscale DiscussionSPC3 hr
May 4, 10:29 AM EDTSevere Thunderstorm WarningTAE18 min
May 4, 10:44 AM EDTSevere Thunderstorm WarningTAE46 min
May 12, 7:36 PM EDTSpecial Weather StatementTAE54 min
May 12, 7:39 PM EDTSevere Thunderstorm WarningTAE51 min
May 12, 8:21 PM EDTSevere Thunderstorm WarningTAE39 min
May 23, 9:38 AM EDTMesoscale DiscussionSPC2 hr
May 23, 10:10 AM EDTTornado WatchSPC8 hr
May 23, 12:22 PM EDTMesoscale DiscussionSPC83 min
May 23, 4:50 PM EDTMesoscale DiscussionSPC85 min
May 24, 6:56 AM EDTTornado WatchSPC8 hr
May 24, 10:26 AM EDTMesoscale DiscussionSPC94 min
May 24, 3:23 PM EDTSevere Thunderstorm WarningTAE60 min
Jun 6, 12:19 PM EDTFlash Flood WarningTAE116 min
Jun 7, 4:12 PM EDTFlash Flood WarningTAE2 hr
Jun 17, 12:16 PM EDTSpecial Weather StatementTAE44 min
Jun 19, 3:53 PM EDTFlash Flood WatchTAE48 hr
Jul 5, 5:10 PM EDTSpecial Weather StatementTAE50 min
Jul 5, 5:34 PM EDTSevere Thunderstorm WarningTAE41 min
Jul 5, 6:13 PM EDTSpecial Weather StatementTAE32 min
Jul 6, 4:37 PM EDTSpecial Weather StatementTAE23 min
Jul 7, 2:27 PM EDTSevere Thunderstorm WarningTAE33 min
Jul 7, 3:15 PM EDTSevere Thunderstorm WarningTAE45 min
Jul 7, 3:50 PM EDTSevere Thunderstorm WarningTAE25 min
Jul 7, 4:16 PM EDTSevere Thunderstorm WarningTAE29 min
Jul 8, 1:53 PM EDTSpecial Weather StatementTAE52 min
Jul 9, 4:54 PM EDTSpecial Weather StatementTAE36 min
Jul 10, 12:49 PM EDTSpecial Weather StatementTAE41 min
Jul 10, 1:30 PM EDTSpecial Weather StatementTAE30 min
Jul 13, 5:28 PM EDTSpecial Weather StatementTAE62 min
Jul 13, 6:34 PM EDTSevere Thunderstorm WarningTAE26 min
Jul 15, 12:54 AM EDTSpecial Weather StatementTAE51 min
Jul 20, 1:44 PM EDTMesoscale DiscussionSPC3 hr
Jul 20, 7:12 PM EDTSpecial Weather StatementTAE33 min
Jul 21, 3:03 PM EDTSpecial Weather StatementTAE42 min
Jul 21, 3:10 PM EDTSevere Thunderstorm WarningTAE35 min
Jul 21, 3:31 PM EDTSevere Thunderstorm WarningTAE44 min
Jul 21, 3:50 PM EDTSevere Thunderstorm WarningTAE25 min
Aug 13, 4:45 PM EDTSpecial Weather StatementTAE45 min
Aug 20, 10:07 PM EDTSpecial Weather StatementTAE38 min
Aug 20, 10:37 PM EDTSevere Thunderstorm WarningTAE23 min
Aug 25, 10:58 PM EDTSevere Thunderstorm WarningTAE62 min
Aug 30, 1:10 PM EDTMesoscale DiscussionSPC2 hr
Aug 30, 1:44 PM EDTSpecial Weather StatementTAE46 min
Aug 30, 1:51 PM EDTSevere Thunderstorm WarningTAE26 min
Aug 31, 12:22 PM EDTSpecial Weather StatementTAE23 min
Aug 31, 3:09 PM EDTSpecial Weather StatementTAE36 min
Aug 31, 4:11 PM EDTSpecial Weather StatementTAE19 min
Aug 31, 6:30 PM EDTSpecial Weather StatementTAE30 min
Aug 31, 6:59 PM EDTSpecial Weather StatementTAE31 min
Sep 1, 2:33 PM EDTSpecial Weather StatementTAE27 min
Sep 8, 11:12 PM EDTHurricane WatchTAE18 hr
Sep 9, 11:29 AM EDTHurricane WarningTAE45 hr
Sep 9, 3:23 PM EDTFlash Flood WatchTAE50 hr
Sep 9, 5:32 PM EDTTropical Storm WarningTAE52 hr
Sep 11, 5:37 PM EDTWind AdvisoryTAE3 hr
Oct 8, 2:46 PM EDTSpecial Weather StatementTAE29 min
Oct 12, 4:11 AM EDTDense Fog AdvisoryTAE6 hr
Oct 23, 2:26 AM EDTSpecial Weather StatementTAE34 min
Oct 23, 2:52 AM EDTSpecial Weather StatementTAE23 min
Oct 29, 2:40 PM EDTFrost AdvisoryTAE18 hr
Nov 7, 4:01 AM ESTDense Fog AdvisoryTAE5 hr
Nov 8, 6:34 AM ESTDense Fog AdvisoryTAE3 hr
Nov 29, 5:07 AM ESTDense Fog AdvisoryTAE6 hr
Nov 30, 12:19 AM ESTDense Fog AdvisoryTAE9 hr
Dec 2, 1:01 AM ESTDense Fog AdvisoryTAE9 hr
Dec 8, 2:34 PM ESTFreeze WatchTAE14 hr
Dec 9, 4:54 AM ESTFreeze WarningTAE28 hr
Dec 9, 2:16 PM ESTFreeze WatchTAE23 hr
Dec 10, 12:47 PM ESTFreeze WarningTAE19 hr
Dec 18, 6:05 PM ESTDense Fog AdvisoryTAE16 hr
Dec 19, 6:21 PM ESTDense Fog AdvisoryTAE15 hr
Dec 21, 4:25 AM ESTDense Fog AdvisoryTAE6 hr
Dec 21, 8:19 PM ESTDense Fog AdvisoryTAE14 hr
Dec 30, 1:23 AM ESTDense Fog AdvisoryTAE8 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 archive20162018

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.