Alert archive / Florida / Hillsborough County

Weather alerts in Hillsborough County, Florida, 2015

227 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hillsborough County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
227
Warnings
38
Watches
7
Advisories
67
Busiest month
August67 alerts
Busiest day
August 1, 201512 alerts

Over time

By month

Warning verification

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

Hillsborough County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings9722%1377%18 min
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Tampa Bay, FL: tornado warnings30100%30%
NWS Tampa Bay, FL: severe thunderstorm warnings442348%5362%12 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, 4:13 AM ESTDense Fog AdvisoryTBW5 hr
Jan 4, 4:35 AM ESTRip Current StatementTBW16 hr
Jan 7, 10:22 AM ESTRip Current StatementTBW30 hr
Jan 7, 10:22 AM ESTHigh Surf AdvisoryTBW18 hr
Jan 7, 10:22 AM ESTWind Chill AdvisoryTBW24 hr
Jan 9, 5:05 AM ESTRip Current StatementTBW16 hr
Jan 12, 8:28 PM ESTDense Fog AdvisoryTBW14 hr
Jan 18, 3:54 AM ESTRip Current StatementTBW15 hr
Jan 23, 3:16 AM ESTLake Wind AdvisoryTBW17 hr
Jan 23, 8:35 PM ESTLake Wind AdvisoryTBW22 hr
Jan 24, 3:00 AM ESTRip Current StatementTBW22 hr
Jan 24, 3:00 AM ESTHigh Surf AdvisoryTBW22 hr
Jan 26, 3:27 AM ESTLake Wind AdvisoryTBW15 hr
Jan 26, 3:34 AM ESTRip Current StatementTBW42 hr
Jan 26, 3:34 AM ESTHigh Surf AdvisoryTBW27 hr
Jan 26, 4:22 AM ESTSpecial Weather StatementTBW38 min
Feb 2, 3:57 AM ESTRip Current StatementTBW24 hr
Feb 5, 2:15 AM ESTSpecial Weather StatementTBW45 min
Feb 10, 3:52 AM ESTRip Current StatementTBW18 hr
Feb 18, 3:18 AM ESTFreeze WatchTBW24 hr
Feb 18, 3:25 AM ESTWind Chill AdvisoryTBW30 hr
Feb 18, 3:29 AM ESTRip Current StatementTBW40 hr
Feb 18, 3:04 PM ESTHigh Surf AdvisoryTBW28 hr
Feb 19, 3:16 AM ESTFreeze WarningTBW30 hr
Feb 19, 3:16 AM ESTHard Freeze WarningTBW30 hr
Feb 19, 3:16 AM ESTLake Wind AdvisoryTBW15 hr
Feb 19, 3:26 AM ESTWind Chill AdvisoryTBW31 hr
Feb 23, 5:09 AM ESTDense Fog AdvisoryTBW5 hr
Feb 23, 8:20 PM ESTDense Fog AdvisoryTBW14 hr
Feb 25, 7:49 AM ESTDense Fog AdvisoryTBW2 hr
Feb 25, 10:01 PM ESTRip Current StatementTBW24 hr
Feb 26, 2:14 AM ESTMesoscale DiscussionSPC91 min
Feb 26, 3:43 AM ESTHigh Surf AdvisoryTBW18 hr
Mar 2, 6:14 AM ESTDense Fog AdvisoryTBW4 hr
Mar 3, 3:29 AM ESTDense Fog AdvisoryTBW6 hr
Mar 6, 3:37 AM ESTDense Fog AdvisoryTBW6 hr
Mar 27, 5:14 AM EDTBeach Hazards StatementTBW16 hr
Mar 28, 4:20 AM EDTRip Current StatementTBW17 hr
Apr 11, 6:15 PM EDTSpecial Weather StatementTBW45 min
Apr 11, 6:51 PM EDTAreal Flood AdvisoryTBW114 min
Apr 11, 7:22 PM EDTAreal Flood WarningTBW113 min
Apr 12, 6:17 PM EDTSpecial Weather StatementTBW28 min
Apr 16, 4:36 PM EDTSpecial Weather StatementTBW24 min
Apr 16, 4:50 PM EDTAreal Flood AdvisoryTBW115 min
Apr 16, 5:02 PM EDTSpecial Weather StatementTBW43 min
Apr 16, 5:53 PM EDTSpecial Weather StatementTBW52 min
Apr 19, 3:44 AM EDTBeach Hazards StatementTBW16 hr
Apr 19, 5:43 PM EDTSpecial Weather StatementTBW47 min
Apr 19, 6:34 PM EDTSpecial Weather StatementTBW56 min
Apr 20, 4:13 AM EDTBeach Hazards StatementTBW16 hr
Apr 20, 11:04 AM EDTSevere Thunderstorm WatchSPC8 hr
Apr 20, 4:25 PM EDTSevere Thunderstorm WarningTBW50 min
Apr 20, 5:13 PM EDTSpecial Weather StatementTBW47 min
Apr 20, 5:24 PM EDTMesoscale DiscussionSPC96 min
Apr 23, 11:46 AM EDTAreal Flood AdvisoryTBW3 hr
Apr 27, 10:21 AM EDTRip Current StatementTBW28 hr
May 4, 3:50 AM EDTRed Flag WarningTBW14 hr
May 11, 6:49 PM EDTSpecial Weather StatementTBW26 min
May 11, 7:26 PM EDTSpecial Weather StatementTBW34 min
May 11, 7:30 PM EDTSevere Thunderstorm WarningTBW32 min
May 11, 7:45 PM EDTAreal Flood AdvisoryTBW60 min
May 12, 12:49 PM EDTMesoscale DiscussionSPC2 hr
May 12, 6:04 PM EDTSpecial Weather StatementTBW41 min
May 12, 6:29 PM EDTSevere Thunderstorm WarningTBW46 min
May 12, 6:50 PM EDTAreal Flood AdvisoryTBW115 min
May 17, 5:36 PM EDTSpecial Weather StatementTBW24 min
May 17, 6:11 PM EDTSpecial Weather StatementTBW49 min
May 17, 6:29 PM EDTAreal Flood AdvisoryTBW61 min
May 23, 5:13 PM EDTSpecial Weather StatementTBW32 min
May 24, 6:15 PM EDTAreal Flood AdvisoryTBW3 hr
May 26, 7:01 PM EDTAreal Flood AdvisoryTBW119 min
May 26, 8:52 PM EDTAreal Flood AdvisoryTBW3 hr
May 26, 10:05 PM EDTAreal Flood AdvisoryTBW115 min
May 31, 7:45 PM EDTSpecial Weather StatementTBW45 min
Jun 2, 4:25 PM EDTSpecial Weather StatementTBW50 min
Jun 10, 2:41 PM EDTAreal Flood AdvisoryTBW2 hr
Jun 10, 3:16 PM EDTAreal Flood WarningTBW119 min
Jun 10, 4:09 PM EDTAreal Flood AdvisoryTBW66 min
Jun 10, 5:15 PM EDTAreal Flood WarningTBW2 hr
Jun 11, 4:47 PM EDTSpecial Weather StatementTBW28 min
Jun 12, 3:58 PM EDTSevere Thunderstorm WarningTBW32 min
Jun 12, 4:22 PM EDTSpecial Weather StatementTBW38 min
Jun 15, 5:27 PM EDTSpecial Weather StatementTBW33 min
Jun 15, 5:48 PM EDTSpecial Weather StatementTBW42 min
Jun 15, 5:54 PM EDTSevere Thunderstorm WarningTBW36 min
Jun 16, 7:30 PM EDTSpecial Weather StatementTBW30 min
Jun 16, 8:02 PM EDTSpecial Weather StatementTBW43 min
Jun 18, 4:03 PM EDTSpecial Weather StatementTBW27 min
Jun 18, 4:20 PM EDTSpecial Weather StatementTBW40 min
Jun 18, 4:48 PM EDTSpecial Weather StatementTBW42 min
Jun 18, 5:13 PM EDTSevere Thunderstorm WarningTBW32 min
Jun 18, 5:24 PM EDTSpecial Weather StatementTBW51 min
Jun 18, 5:45 PM EDTAreal Flood AdvisoryTBW60 min
Jun 22, 11:20 PM EDTSpecial Weather StatementTBW40 min
Jun 22, 11:59 PM EDTSpecial Weather StatementTBW31 min
Jun 23, 7:06 PM EDTAreal Flood AdvisoryTBW114 min
Jun 24, 3:20 PM EDTSpecial Weather StatementTBW40 min
Jun 25, 12:41 AM EDTSpecial Weather StatementTBW49 min
Jun 28, 5:04 AM EDTBeach Hazards StatementTBW15 hr
Jun 29, 4:41 AM EDTBeach Hazards StatementTBW15 hr
Jun 29, 12:12 PM EDTSpecial Weather StatementTBW63 min
Jun 30, 4:13 AM EDTBeach Hazards StatementTBW18 hr
Jul 2, 1:55 PM EDTSpecial Weather StatementTBW35 min
Jul 2, 2:52 PM EDTSpecial Weather StatementTBW23 min
Jul 2, 3:27 PM EDTSpecial Weather StatementTBW33 min
Jul 3, 3:28 PM EDTSpecial Weather StatementTBW47 min
Jul 3, 3:31 PM EDTSevere Thunderstorm WarningTBW44 min
Jul 3, 4:01 PM EDTSpecial Weather StatementTBW44 min
Jul 4, 7:49 PM EDTSpecial Weather StatementTBW41 min
Jul 5, 4:47 PM EDTSpecial Weather StatementTBW28 min
Jul 7, 3:28 PM EDTSpecial Weather StatementTBW32 min
Jul 11, 4:15 PM EDTSpecial Weather StatementTBW45 min
Jul 11, 4:34 PM EDTSevere Thunderstorm WarningTBW41 min
Jul 14, 4:25 AM EDTBeach Hazards StatementTBW16 hr
Jul 15, 3:55 AM EDTRip Current StatementTBW16 hr
Jul 16, 9:55 AM EDTSpecial Weather StatementTBW35 min
Jul 23, 3:28 PM EDTFlood WatchTBW7 days
Jul 24, 10:57 AM EDTAreal Flood AdvisoryTBW2 hr
Jul 24, 1:05 PM EDTAreal Flood AdvisoryTBW3 hr
Jul 24, 3:56 PM EDTAreal Flood AdvisoryTBW5 hr
Jul 24, 7:26 PM EDTSevere Thunderstorm WarningTBW49 min
Jul 25, 3:34 AM EDTRip Current StatementTBW46 hr
Jul 25, 8:12 AM EDTAreal Flood AdvisoryTBW2 hr
Jul 25, 9:47 AM EDTAreal Flood WarningTBW6 hr
Jul 25, 3:43 PM EDTAreal Flood WarningTBW2 hr
Jul 26, 1:20 PM EDTAreal Flood AdvisoryTBW115 min
Jul 26, 4:18 PM EDTRiver Flood WarningTBW4 days
Jul 27, 3:57 AM EDTRip Current StatementTBW16 hr
Jul 27, 7:43 PM EDTAreal Flood AdvisoryTBW3 hr
Jul 27, 8:43 PM EDTAreal Flood AdvisoryTBW2 hr
Jul 28, 3:37 AM EDTRip Current StatementTBW16 hr
Jul 30, 6:52 PM EDTSpecial Weather StatementTBW23 min
Jul 30, 9:08 PM EDTRiver Flood WarningTBW7 days
Jul 31, 6:03 AM EDTRip Current StatementTBW4 days
Jul 31, 6:07 PM EDTSpecial Weather StatementTBW23 min
Aug 1, 2:55 AM EDTFlood WatchTBW4 days
Aug 1, 11:45 AM EDTSpecial Weather StatementTBW45 min
Aug 1, 12:10 PM EDTAreal Flood AdvisoryTBW2 hr
Aug 1, 12:40 PM EDTSpecial Weather StatementTBW35 min
Aug 1, 1:07 PM EDTSpecial Weather StatementTBW38 min
Aug 1, 1:34 PM EDTAreal Flood WarningTBW3 hr
Aug 1, 1:43 PM EDTSpecial Weather StatementTBW47 min
Aug 1, 1:47 PM EDTSpecial Weather StatementTBW28 min
Aug 1, 2:25 PM EDTAreal Flood AdvisoryTBW2 hr
Aug 1, 2:59 PM EDTSpecial Weather StatementTBW46 min
Aug 1, 4:27 PM EDTAreal Flood WarningTBW3 hr
Aug 1, 7:44 PM EDTAreal Flood WarningTBW2 hr
Aug 1, 9:43 PM EDTAreal Flood WarningTBW12 hr
Aug 2, 9:29 AM EDTAreal Flood WarningTBW9 hr
Aug 2, 1:13 PM EDTSpecial Weather StatementTBW47 min
Aug 2, 4:00 PM EDTRiver Flood WarningTBW4 days
Aug 3, 4:39 AM EDTAreal Flood AdvisoryTBW2 hr
Aug 3, 6:10 AM EDTAreal Flood AdvisoryTBW3 hr
Aug 3, 7:37 AM EDTAreal Flood WarningTBW3 hr
Aug 3, 8:18 AM EDTAreal Flood WarningTBW3 hr
Aug 3, 10:34 AM EDTAreal Flood WarningTBW6 hr
Aug 3, 4:14 PM EDTRiver Flood WarningTBW62 hr
Aug 4, 7:37 AM EDTRiver Flood WarningTBW4 days
Aug 7, 4:38 AM EDTRip Current StatementTBW39 hr
Aug 7, 12:57 PM EDTSpecial Weather StatementTBW48 min
Aug 8, 10:47 AM EDTMesoscale DiscussionSPC2 hr
Aug 8, 11:20 AM EDTSpecial Weather StatementTBW40 min
Aug 8, 12:00 PM EDTSpecial Weather StatementTBW60 min
Aug 8, 12:18 PM EDTAreal Flood AdvisoryTBW4 hr
Aug 8, 12:59 PM EDTSpecial Weather StatementTBW61 min
Aug 8, 8:04 PM EDTRip Current StatementTBW9 hr
Aug 9, 7:00 PM EDTSpecial Weather StatementTBW45 min
Aug 9, 7:41 PM EDTSpecial Weather StatementTBW34 min
Aug 9, 8:01 PM EDTSpecial Weather StatementTBW29 min
Aug 12, 2:08 PM EDTMesoscale DiscussionSPC2 hr
Aug 12, 5:14 PM EDTFlood WatchTBW27 hr
Aug 13, 2:48 PM EDTAreal Flood AdvisoryTBW117 min
Aug 13, 3:33 PM EDTAreal Flood AdvisoryTBW3 hr
Aug 14, 5:22 PM EDTSpecial Weather StatementTBW23 min
Aug 14, 5:25 PM EDTSpecial Weather StatementTBW20 min
Aug 14, 6:22 PM EDTAreal Flood AdvisoryTBW53 min
Aug 14, 6:26 PM EDTSpecial Weather StatementTBW64 min
Aug 15, 3:19 PM EDTSpecial Weather StatementTBW26 min
Aug 15, 6:47 PM EDTAreal Flood AdvisoryTBW118 min
Aug 15, 9:29 PM EDTRiver Flood WarningTBW5 days
Aug 16, 4:33 PM EDTSpecial Weather StatementTBW42 min
Aug 16, 7:57 PM EDTSpecial Weather StatementTBW63 min
Aug 16, 8:33 PM EDTAreal Flood AdvisoryTBW57 min
Aug 17, 5:05 AM EDTRiver Flood WarningTBW33 hr
Aug 17, 5:05 AM EDTRiver Flood WarningTBW7 days
Aug 17, 8:03 PM EDTAreal Flood AdvisoryTBW117 min
Aug 18, 8:11 PM EDTSpecial Weather StatementTBW49 min
Aug 19, 8:26 AM EDTRiver Flood WarningTBW66 hr
Aug 19, 6:51 PM EDTSpecial Weather StatementTBW24 min
Aug 22, 5:22 PM EDTSpecial Weather StatementTBW38 min
Aug 23, 9:50 PM EDTSpecial Weather StatementTBW55 min
Aug 25, 10:30 PM EDTRiver Flood WarningTBW52 hr
Aug 26, 7:32 PM EDTSpecial Weather StatementTBW58 min
Aug 26, 7:43 PM EDTAreal Flood AdvisoryTBW2 hr
Aug 26, 8:10 PM EDTSpecial Weather StatementTBW50 min
Aug 28, 5:18 PM EDTAreal Flood AdvisoryTBW117 min
Aug 29, 3:45 PM EDTFlood WatchTBW52 hr
Aug 29, 4:04 PM EDTAreal Flood AdvisoryTBW116 min
Aug 30, 10:23 AM EDTRiver Flood WarningTBW8 days
Aug 30, 10:23 AM EDTRiver Flood WarningTBW8 days
Aug 30, 6:58 PM EDTAreal Flood AdvisoryTBW62 min
Aug 30, 8:01 PM EDTAreal Flood AdvisoryTBW59 min
Sep 4, 6:34 PM EDTSpecial Weather StatementTBW56 min
Sep 8, 3:50 AM EDTRip Current StatementTBW16 hr
Sep 19, 4:46 PM EDTSpecial Weather StatementTBW44 min
Sep 19, 4:54 PM EDTAreal Flood AdvisoryTBW66 min
Sep 25, 5:24 PM EDTSpecial Weather StatementTBW36 min
Sep 25, 9:47 PM EDTAreal Flood AdvisoryTBW88 min
Sep 25, 10:34 PM EDTAreal Flood AdvisoryTBW56 min
Sep 26, 6:14 PM EDTAreal Flood AdvisoryTBW2 hr
Sep 27, 5:32 PM EDTSpecial Weather StatementTBW43 min
Sep 28, 4:12 AM EDTFlood WatchTBW31 hr
Sep 28, 10:50 AM EDTRip Current StatementTBW33 hr
Sep 29, 9:48 PM EDTRiver Flood WarningTBW56 hr
Sep 30, 4:39 AM EDTRip Current StatementTBW15 hr
Oct 2, 9:03 AM EDTRip Current StatementTBW3 days
Oct 18, 3:41 AM EDTRip Current StatementTBW11 hr
Oct 29, 4:27 AM EDTDense Fog AdvisoryTBW6 hr
Nov 9, 5:15 AM ESTRip Current StatementTBW14 hr
Nov 10, 4:20 AM ESTRip Current StatementTBW17 hr
Nov 12, 3:57 AM ESTDense Fog AdvisoryTBW5 hr
Nov 21, 11:34 PM ESTAreal Flood AdvisoryTBW86 min
Nov 26, 4:11 AM ESTLake Wind AdvisoryTBW15 hr
Dec 15, 2:28 AM ESTDense Fog AdvisoryTBW5 hr
Dec 18, 3:41 AM ESTRip Current StatementTBW17 hr
Dec 28, 1:21 PM ESTRip Current StatementTBW53 hr
Dec 29, 10:38 AM ESTHigh Surf AdvisoryTBW32 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 archive20142016

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.