Alert archive / Florida / Tornado Warnings in 2017
Tornado Warning 16, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this tornado warning at Sep 10, 2017, 11:08 AM EDT for 4 counties in Florida. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 10, 2017, 11:08 AM EDT (15:08 UTC)
- Expired
- Sep 10, 2017, 11:30 AM EDT
- In force
- 22 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Hillsborough County, FL, Pasco County, FL, Polk County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 73 km from the middle of the area, began a volume at 15:11 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 9, 11:45 PM EDT | Tornado Watch | SPC | 12 hr |
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 3.1 hours before the alert went out and 73 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 103 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
576
WFUS52 KTBW 101508
TORTBW
FLC057-101-105-119-101530-
/O.NEW.KTBW.TO.W.0016.170910T1508Z-170910T1530Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tampa Bay Area Ruskin FL
1108 AM EDT SUN SEP 10 2017
The National Weather Service in Ruskin has issued a
* Tornado Warning for...
Southern Sumter County in central Florida...
Southeastern Pasco County in west central Florida...
Northwestern Polk County in central Florida...
Northeastern Hillsborough County in west central Florida...
* Until 1130 AM EDT
* At 1107 AM EDT, a severe thunderstorm capable of producing a
tornado was located 11 miles north of Combee Settlement, or 13
miles north of Lakeland, moving west at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Zephyrhills, Zephyrhills South, Zephyrhills North and Zephyrhills
West around 1130 AM EDT.
Other locations impacted by this tornadic thunderstorm include
Crystal Springs, Richland and Zephyrhills Municipal Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
&&
LAT...LON 2829 8184 2817 8184 2817 8220 2833 8220
TIME...MOT...LOC 1507Z 091DEG 30KT 2823 8194
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
TBW1 follow-up statement
536
WWUS52 KTBW 101523
SVSTBW
Severe Weather Statement
National Weather Service Tampa Bay Area Ruskin FL
1123 AM EDT SUN SEP 10 2017
FLC057-101-105-119-101530-
/O.CON.KTBW.TO.W.0016.000000T0000Z-170910T1530Z/
Sumter FL-Pasco FL-Polk FL-Hillsborough FL-
1123 AM EDT SUN SEP 10 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT FOR SOUTHERN
SUMTER...SOUTHEASTERN PASCO...NORTHWESTERN POLK AND NORTHEASTERN
HILLSBOROUGH COUNTIES...
At 1122 AM EDT, a severe thunderstorm capable of producing a tornado
was located near Zephyrhills North, or near Zephyrhills, moving west
at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
southern Sumter...southeastern Pasco...northwestern Polk and
northeastern Hillsborough Counties, including the following
locations: Crystal Springs, Richland and Zephyrhills Municipal
Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
&&
LAT...LON 2829 8185 2817 8186 2817 8220 2833 8220
TIME...MOT...LOC 1522Z 091DEG 30KT 2823 8209
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
TBWThe office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 1:58 AM EDT | Areal Flood Warning | TBW | Lee | 6 hr |
| Sep 10, 7:57 AM EDT | Tornado Warning | TBW | Polk | 13 min |
| Sep 10, 8:56 AM EDT | Tornado Warning | TBW | Hardee | 19 min |
| Sep 10, 10:45 AM EDT | River Flood Warning | TBW | Manatee | 35 hr |
| Sep 10, 10:45 AM EDT | Tornado Warning | TBW | Polk | 30 min |
| Sep 10, 4:05 PM EDT | Extreme Wind Warning | TBW | Lee | 115 min |
Nearby
Tornado Warnings in Florida, 2017Every tornado warning in 2017Tornadoes in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.