Alert archive / Florida / Hillsborough County
Weather alerts in Hillsborough County, Florida, 2017
217 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 217
- Warnings
- 35
- Watches
- 10
- Advisories
- 59
- Busiest month
- June36 alerts
- Busiest day
- January 23, 20178 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 Hillsborough County in 2017 had a tornado report inside them.
Hillsborough County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 13 | 3 | 77% | 5 | 40% | 19 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tampa Bay, FL: tornado warnings | 17 | 1 | 94% | 4 | 25% | 4 min |
| NWS Tampa Bay, FL: severe thunderstorm warnings | 43 | 14 | 67% | 48 | 44% | 17 min |
| NWS Tampa Bay, FL: flash flood warnings | 2 | 1 | 50% | 4 | 75% | 36 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 3:00 PM EST | Rip Current Statement | TBW | 52 hr |
| Jan 6, 3:00 PM EST | High Surf Advisory | TBW | 52 hr |
| Jan 7, 12:08 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 7, 12:33 AM EST | Tornado Watch | SPC | 4 hr |
| Jan 7, 3:58 AM EST | Mesoscale Discussion | SPC | 92 min |
| Jan 7, 8:50 AM EST | Wind Chill Advisory | TBW | 25 hr |
| Jan 8, 2:40 PM EST | Wind Chill Advisory | TBW | 18 hr |
| Jan 21, 4:34 AM EST | Rip Current Statement | TBW | 4 days |
| Jan 21, 5:24 AM EST | Dense Fog Advisory | TBW | 4 hr |
| Jan 21, 2:56 PM EST | Lake Wind Advisory | TBW | 52 hr |
| Jan 22, 5:01 AM EST | Coastal Flood Statement | TBW | 19 hr |
| Jan 22, 5:01 AM EST | High Surf Advisory | TBW | 56 hr |
| Jan 22, 4:12 PM EST | Mesoscale Discussion | SPC | 63 min |
| Jan 22, 4:35 PM EST | Tornado Watch | SPC | 5 hr |
| Jan 22, 6:12 PM EST | Severe Thunderstorm Warning | TBW | 32 min |
| Jan 22, 7:18 PM EST | Special Weather Statement | TBW | 57 min |
| Jan 22, 7:23 PM EST | Severe Thunderstorm Warning | TBW | 22 min |
| Jan 22, 7:32 PM EST | Mesoscale Discussion | SPC | 88 min |
| Jan 22, 7:44 PM EST | Special Weather Statement | TBW | 61 min |
| Jan 22, 7:59 PM EST | Severe Thunderstorm Warning | TBW | 31 min |
| Jan 22, 8:03 PM EST | Severe Thunderstorm Warning | TBW | 42 min |
| Jan 22, 8:21 PM EST | Mesoscale Discussion | SPC | 114 min |
| Jan 23, 5:08 AM EST | Special Weather Statement | TBW | 52 min |
| Jan 25, 5:06 AM EST | Dense Fog Advisory | TBW | 6 hr |
| Jan 26, 5:00 AM EST | Rip Current Statement | TBW | 14 hr |
| Jan 27, 9:42 AM EST | Rip Current Statement | TBW | 9 hr |
| Jan 30, 3:06 AM EST | Rip Current Statement | TBW | 16 hr |
| Jan 30, 6:51 AM EST | High Surf Advisory | TBW | 10 hr |
| Jan 30, 1:51 PM EST | Frost Advisory | TBW | 18 hr |
| Feb 7, 9:36 PM EST | Mesoscale Discussion | SPC | 114 min |
| Feb 7, 11:15 PM EST | Special Weather Statement | TBW | 45 min |
| Feb 9, 4:12 AM EST | Rip Current Statement | TBW | 39 hr |
| Feb 15, 3:03 AM EST | Rip Current Statement | TBW | 22 hr |
| Feb 15, 3:10 AM EST | Lake Wind Advisory | TBW | 16 hr |
| Feb 15, 1:50 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 16, 2:20 AM EST | Rip Current Statement | TBW | 17 hr |
| Feb 18, 9:55 AM EST | Dense Fog Advisory | TBW | 23 hr |
| Feb 23, 3:32 AM EST | Rip Current Statement | TBW | 23 hr |
| Mar 3, 3:56 AM EST | Red Flag Warning | TBW | 13 hr |
| Mar 3, 3:56 AM EST | Lake Wind Advisory | TBW | 15 hr |
| Mar 5, 2:54 AM EST | Lake Wind Advisory | TBW | 14 hr |
| Mar 14, 6:26 AM EDT | Rip Current Statement | TBW | 41 hr |
| Mar 19, 2:59 AM EDT | Rip Current Statement | TBW | 20 hr |
| Mar 19, 3:51 AM EDT | Red Flag Warning | TBW | 15 hr |
| Mar 23, 1:47 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 4:32 AM EDT | Rip Current Statement | TBW | 15 hr |
| Apr 3, 4:10 AM EDT | Rip Current Statement | TBW | 18 hr |
| Apr 4, 3:18 AM EDT | Rip Current Statement | TBW | 4 days |
| Apr 6, 3:12 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 5:13 AM EDT | Severe Thunderstorm Warning | TBW | 32 min |
| Apr 6, 5:51 AM EDT | Special Weather Statement | TBW | 9 min |
| Apr 6, 6:10 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 7:18 AM EDT | Special Weather Statement | TBW | 42 min |
| Apr 6, 8:36 PM EDT | Red Flag Warning | TBW | 23 hr |
| Apr 24, 3:30 AM EDT | Lake Wind Advisory | TBW | 16 hr |
| Apr 24, 3:33 AM EDT | Rip Current Statement | TBW | 30 hr |
| Apr 30, 8:37 AM EDT | Rip Current Statement | TBW | 12 hr |
| May 3, 6:28 PM EDT | Special Weather Statement | TBW | 47 min |
| May 4, 3:15 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 4, 4:53 PM EDT | Special Weather Statement | TBW | 52 min |
| May 4, 5:51 PM EDT | Special Weather Statement | TBW | 54 min |
| May 5, 3:37 AM EDT | Rip Current Statement | TBW | 42 hr |
| May 5, 3:37 AM EDT | High Surf Advisory | TBW | 32 hr |
| May 10, 2:59 AM EDT | Fire Weather Watch | TBW | 12 hr |
| May 10, 2:59 AM EDT | Red Flag Warning | TBW | 17 hr |
| May 10, 2:34 PM EDT | Red Flag Warning | TBW | 29 hr |
| May 13, 4:07 AM EDT | Lake Wind Advisory | TBW | 15 hr |
| May 13, 4:12 AM EDT | Rip Current Statement | TBW | 16 hr |
| May 19, 6:21 PM EDT | Special Weather Statement | TBW | 39 min |
| May 19, 8:05 PM EDT | Areal Flood Advisory | TBW | 55 min |
| May 20, 8:18 PM EDT | Areal Flood Advisory | TBW | 87 min |
| May 23, 4:07 AM EDT | Lake Wind Advisory | TBW | 16 hr |
| May 23, 4:13 AM EDT | Rip Current Statement | TBW | 52 hr |
| May 23, 2:32 PM EDT | Coastal Flood Watch | TBW | 14 hr |
| May 24, 4:16 AM EDT | Coastal Flood Statement | TBW | 28 hr |
| May 24, 4:20 AM EDT | Lake Wind Advisory | TBW | 18 hr |
| May 24, 6:30 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 2:19 PM EDT | Special Weather Statement | TBW | 56 min |
| May 24, 2:42 PM EDT | Severe Thunderstorm Warning | TBW | 28 min |
| May 25, 8:23 AM EDT | Rip Current Statement | TBW | 6 hr |
| May 31, 6:09 PM EDT | Special Weather Statement | TBW | 51 min |
| Jun 2, 2:11 PM EDT | Special Weather Statement | TBW | 34 min |
| Jun 5, 10:57 PM EDT | Rip Current Statement | TBW | 45 hr |
| Jun 7, 9:08 AM EDT | Special Weather Statement | TBW | 37 min |
| Jun 7, 9:47 AM EDT | Special Weather Statement | TBW | 58 min |
| Jun 7, 10:11 AM EDT | Severe Thunderstorm Warning | TBW | 34 min |
| Jun 7, 10:46 AM EDT | Special Weather Statement | TBW | 59 min |
| Jun 7, 11:45 AM EDT | Special Weather Statement | TBW | 60 min |
| Jun 7, 12:25 PM EDT | River Flood Warning | TBW | 24 hr |
| Jun 8, 5:00 AM EDT | Rip Current Statement | TBW | 15 hr |
| Jun 11, 2:00 PM EDT | Special Weather Statement | TBW | 45 min |
| Jun 12, 6:05 PM EDT | Special Weather Statement | TBW | 40 min |
| Jun 12, 6:40 PM EDT | Special Weather Statement | TBW | 50 min |
| Jun 14, 3:32 PM EDT | Special Weather Statement | TBW | 43 min |
| Jun 14, 3:36 PM EDT | Severe Thunderstorm Warning | TBW | 20 min |
| Jun 14, 4:06 PM EDT | Areal Flood Advisory | TBW | 84 min |
| Jun 14, 4:18 PM EDT | Special Weather Statement | TBW | 42 min |
| Jun 15, 4:10 PM EDT | Special Weather Statement | TBW | 50 min |
| Jun 15, 4:54 PM EDT | Special Weather Statement | TBW | 36 min |
| Jun 15, 5:44 PM EDT | Special Weather Statement | TBW | 46 min |
| Jun 15, 6:00 PM EDT | Areal Flood Advisory | TBW | 2 hr |
| Jun 15, 6:35 PM EDT | Areal Flood Advisory | TBW | 85 min |
| Jun 15, 8:05 PM EDT | Areal Flood Advisory | TBW | 3 hr |
| Jun 17, 4:37 PM EDT | Special Weather Statement | TBW | 38 min |
| Jun 18, 4:19 PM EDT | Special Weather Statement | TBW | 26 min |
| Jun 19, 2:34 PM EDT | Rip Current Statement | TBW | 53 hr |
| Jun 21, 5:13 PM EDT | Special Weather Statement | TBW | 32 min |
| Jun 22, 7:38 PM EDT | Special Weather Statement | TBW | 37 min |
| Jun 25, 5:48 PM EDT | Areal Flood Advisory | TBW | 87 min |
| Jun 26, 4:02 PM EDT | Areal Flood Advisory | TBW | 88 min |
| Jun 27, 12:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 28, 8:45 PM EDT | Special Weather Statement | TBW | 45 min |
| Jun 29, 5:50 PM EDT | Special Weather Statement | TBW | 40 min |
| Jun 30, 6:07 PM EDT | Special Weather Statement | TBW | 38 min |
| Jun 30, 6:23 PM EDT | Severe Thunderstorm Warning | TBW | 37 min |
| Jun 30, 6:49 PM EDT | Severe Thunderstorm Warning | TBW | 23 min |
| Jun 30, 7:03 PM EDT | Special Weather Statement | TBW | 57 min |
| Jul 1, 1:46 PM EDT | Areal Flood Advisory | TBW | 89 min |
| Jul 3, 3:56 PM EDT | Special Weather Statement | TBW | 49 min |
| Jul 4, 5:45 PM EDT | Special Weather Statement | TBW | 60 min |
| Jul 5, 6:43 PM EDT | Special Weather Statement | TBW | 47 min |
| Jul 5, 7:21 PM EDT | Severe Thunderstorm Warning | TBW | 39 min |
| Jul 5, 7:41 PM EDT | Special Weather Statement | TBW | 49 min |
| Jul 5, 7:47 PM EDT | Areal Flood Advisory | TBW | 58 min |
| Jul 9, 7:00 PM EDT | Special Weather Statement | TBW | 45 min |
| Jul 10, 4:44 PM EDT | Severe Thunderstorm Warning | TBW | 31 min |
| Jul 10, 4:46 PM EDT | Special Weather Statement | TBW | 29 min |
| Jul 10, 4:54 PM EDT | Areal Flood Advisory | TBW | 96 min |
| Jul 10, 5:05 PM EDT | Special Weather Statement | TBW | 40 min |
| Jul 10, 5:39 PM EDT | Areal Flood Advisory | TBW | 96 min |
| Jul 11, 5:28 PM EDT | Special Weather Statement | TBW | 47 min |
| Jul 14, 3:44 PM EDT | Special Weather Statement | TBW | 46 min |
| Jul 17, 4:11 PM EDT | Special Weather Statement | TBW | 34 min |
| Jul 21, 1:22 PM EDT | Special Weather Statement | TBW | 23 min |
| Jul 21, 2:06 PM EDT | Special Weather Statement | TBW | 24 min |
| Jul 21, 4:44 PM EDT | Special Weather Statement | TBW | 31 min |
| Jul 29, 3:38 PM EDT | Special Weather Statement | TBW | 52 min |
| Jul 29, 3:44 PM EDT | Special Weather Statement | TBW | 46 min |
| Jul 29, 4:13 PM EDT | Special Weather Statement | TBW | 32 min |
| Jul 30, 4:48 AM EDT | Rip Current Statement | TBW | 15 hr |
| Jul 30, 8:44 PM EDT | Rip Current Statement | TBW | 12 hr |
| Jul 31, 5:37 AM EDT | Flood Watch | TBW | 11 hr |
| Jul 31, 6:32 AM EDT | Tropical Storm Watch | TBW | 2 hr |
| Jul 31, 8:38 AM EDT | Tropical Storm Warning | TBW | 9 hr |
| Jul 31, 9:47 AM EDT | River Flood Warning | TBW | 4 days |
| Jul 31, 10:38 AM EDT | Areal Flood Advisory | TBW | 112 min |
| Jul 31, 12:29 PM EDT | Areal Flood Advisory | TBW | 91 min |
| Jul 31, 3:19 PM EDT | River Flood Warning | TBW | 3 days |
| Aug 2, 2:06 PM EDT | Special Weather Statement | TBW | 24 min |
| Aug 2, 2:09 PM EDT | Rip Current Statement | TBW | 8 hr |
| Aug 3, 4:55 PM EDT | Special Weather Statement | TBW | 50 min |
| Aug 10, 5:09 PM EDT | Special Weather Statement | TBW | 36 min |
| Aug 17, 4:56 PM EDT | Special Weather Statement | TBW | 34 min |
| Aug 23, 6:20 PM EDT | Special Weather Statement | TBW | 55 min |
| Aug 23, 7:17 PM EDT | Special Weather Statement | TBW | 58 min |
| Aug 23, 7:21 PM EDT | Areal Flood Advisory | TBW | 54 min |
| Aug 25, 7:44 PM EDT | Special Weather Statement | TBW | 31 min |
| Aug 26, 3:42 AM EDT | Rip Current Statement | TBW | 65 hr |
| Aug 26, 3:12 PM EDT | Areal Flood Advisory | TBW | 2 hr |
| Aug 26, 10:27 PM EDT | River Flood Warning | TBW | 6 days |
| Aug 26, 10:27 PM EDT | River Flood Warning | TBW | 4 days |
| Aug 28, 2:53 PM EDT | Areal Flood Advisory | TBW | 112 min |
| Aug 28, 4:33 PM EDT | Areal Flood Advisory | TBW | 117 min |
| Aug 28, 6:30 PM EDT | Areal Flood Advisory | TBW | 2 hr |
| Aug 28, 6:32 PM EDT | Areal Flood Warning | TBW | 118 min |
| Aug 28, 8:33 PM EDT | Areal Flood Advisory | TBW | 117 min |
| Aug 28, 9:25 PM EDT | Areal Flood Advisory | TBW | 95 min |
| Aug 29, 1:23 PM EDT | Areal Flood Advisory | TBW | 82 min |
| Aug 29, 2:50 PM EDT | Areal Flood Advisory | TBW | 85 min |
| Sep 1, 4:16 PM EDT | Areal Flood Advisory | TBW | 89 min |
| Sep 1, 5:03 PM EDT | Special Weather Statement | TBW | 27 min |
| Sep 3, 8:03 PM EDT | Special Weather Statement | TBW | 27 min |
| Sep 7, 11:31 PM EDT | Hurricane Watch | TBW | 37 hr |
| Sep 7, 11:31 PM EDT | Storm Surge Watch | TBW | 37 hr |
| Sep 8, 6:35 AM EDT | River Flood Warning | TBW | 10 days |
| Sep 8, 11:24 AM EDT | Storm Surge Warning | TBW | 3 days |
| Sep 8, 5:11 PM EDT | River Flood Warning | TBW | 11 days |
| Sep 8, 5:11 PM EDT | River Flood Warning | TBW | 11 days |
| Sep 8, 5:11 PM EDT | River Flood Warning | TBW | 7 days |
| Sep 8, 6:45 PM EDT | Hurricane Warning | TBW | 62 hr |
| Sep 9, 12:24 AM EDT | Flash Flood Watch | TBW | 53 hr |
| Sep 9, 10:01 AM EDT | River Flood Warning | TBW | 4 days |
| Sep 10, 11:08 AM EDT | Tornado Warning | TBW | 22 min |
| Sep 10, 12:02 PM EDT | Tornado Watch | SPC | 13 hr |
| Sep 10, 3:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 10, 10:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 11, 3:13 AM EDT | Areal Flood Warning | TBW | 3 hr |
| Sep 11, 5:29 AM EDT | Tropical Storm Warning | TBW | 10 hr |
| Sep 11, 3:08 PM EDT | Wind Advisory | TBW | 3 hr |
| Sep 11, 3:19 PM EDT | Rip Current Statement | TBW | 6 hr |
| Sep 11, 3:19 PM EDT | High Surf Advisory | TBW | 6 hr |
| Sep 12, 3:42 AM EDT | Rip Current Statement | TBW | 16 hr |
| Sep 14, 4:51 PM EDT | Areal Flood Advisory | TBW | 54 min |
| Oct 7, 3:54 AM EDT | Rip Current Statement | TBW | 44 hr |
| Oct 26, 3:27 AM EDT | Rip Current Statement | TBW | 17 hr |
| Oct 28, 3:08 PM EDT | Lake Wind Advisory | TBW | 26 hr |
| Oct 28, 3:33 PM EDT | Rip Current Statement | TBW | 48 hr |
| Oct 28, 3:33 PM EDT | High Surf Advisory | TBW | 31 hr |
| Nov 5, 7:42 AM EST | Dense Fog Advisory | TBW | 10 min |
| Nov 5, 7:52 AM EST | Dense Fog Advisory | TBW | 2 hr |
| Nov 6, 3:19 AM EST | Dense Fog Advisory | TBW | 6 hr |
| Nov 7, 3:11 AM EST | Dense Fog Advisory | TBW | 6 hr |
| Nov 23, 8:40 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Nov 25, 4:42 AM EST | Dense Fog Advisory | TBW | 3 hr |
| Dec 6, 11:31 PM EST | Dense Fog Advisory | TBW | 10 hr |
| Dec 8, 8:16 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 9, 12:35 AM EST | Severe Thunderstorm Warning | TBW | 25 min |
| Dec 9, 1:02 AM EST | Special Weather Statement | TBW | 28 min |
| Dec 9, 4:29 AM EST | Rip Current Statement | TBW | 24 hr |
| Dec 9, 3:11 PM EST | Wind Chill Advisory | TBW | 17 hr |
| Dec 12, 3:32 AM EST | Rip Current Statement | TBW | 35 hr |
| Dec 18, 5:20 AM EST | Dense Fog Advisory | TBW | 4 hr |
| Dec 19, 4:41 AM EST | Dense Fog Advisory | TBW | 4 hr |
| Dec 19, 11:50 PM EST | Dense Fog Advisory | TBW | 9 hr |
| Dec 23, 1:56 AM EST | Dense Fog Advisory | TBW | 7 hr |
| Dec 24, 5:06 AM EST | Dense Fog Advisory | TBW | 5 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 13 |
| Tornado Warning | 1 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 59 |
| Flooding | |
| Areal Flood Warning | 2 |
| River Flood Warning | 10 |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 25 |
| Cold | |
| Frost Advisory | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Lake Wind Advisory | 9 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 14 |
| Tropical | |
| Hurricane Warning | 1 |
| Storm Surge Warning | 1 |
| Tropical Storm Warning | 2 |
| Hurricane Watch | 1 |
| Storm Surge Watch | 1 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Watch | 1 |
| High Surf Advisory | 6 |
| Coastal Flood Statement | 2 |
| Rip Current Statement | 34 |
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.