Alert archive / Florida / Tornado Warnings in 2009
Tornado Warning 13, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this tornado warning at Aug 12, 2009, 5:17 PM EDT for Polk County, Florida. It was in force for 13 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
- Aug 12, 2009, 5:17 PM EDT (21:17 UTC)
- Expired
- Aug 12, 2009, 5:30 PM EDT
- In force
- 13 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Storm-based polygon
County Polk County, FL
The radar
The Tampa radar (KTBW), 76 km from the middle of the area, began a volume at 21:20 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 nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 9.3 hours before the alert went out and 76 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
- 3302 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 668 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS52 KTBW 122117 TORTBW FLC105-122130- /O.NEW.KTBW.TO.W.0013.090812T2117Z-090812T2130Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 517 PM EDT WED AUG 12 2009 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * TORNADO WARNING FOR... CENTRAL POLK COUNTY IN FLORIDA. * UNTIL 530 PM EDT * AT 515 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO NORTH OF AUBURNDALE. NEARLY STATIONARY. * THE TORNADO WILL BE NEAR... AUBURNDALE. LAKE ALFRED. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THE TORNADO GO TO A SMALL INTERIOR ROOM IN A STRONG AND WELL CONSTRUCTED BUILDING. CARS AND MOBILE HOMES ARE NOT SAFE IF NO SHELTER IS AVAILABLE...LIE FLAT IN A DITCH OR CULVERT AND COVER YOUR HEAD WITH YOUR HANDS. TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE PLEASE CALL 813-645-2323. && LAT...LON 2818 8177 2809 8170 2804 8181 2810 8185 TIME...MOT...LOC 2117Z 235DEG 2KT 2810 8179 $$
1 follow-up statement
000 WWUS52 KTBW 122130 SVSTBW SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 530 PM EDT WED AUG 12 2009 FLC105-122141- /O.EXP.KTBW.TO.W.0013.000000T0000Z-090812T2130Z/ POLK FL- 530 PM EDT WED AUG 12 2009 ...THE TORNADO WARNING FOR CENTRAL POLK COUNTY HAS EXPIRED... THE TORNADO HAS LIFTED...HOWEVER THE STORM WILL CONTINUE TO PRODUCE STRONG GUSTY WINDS...HEAVY RAIN...AND SMALL HAIL UNTIL IT FULLY DISSIPATES. LAT...LON 2818 8177 2809 8170 2804 8181 2810 8185 TIME...MOT...LOC 2117Z 235DEG 2KT 2810 8179 $$
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 10:14 PM EDT | Special Weather Statement | TBW | DeSoto | 46 min |
| Aug 12, 12:01 PM EDT | Special Weather Statement | TBW | Pinellas | 44 min |
| Aug 12, 12:11 PM EDT | Areal Flood Advisory | TBW | Pinellas | 64 min |
| Aug 12, 5:02 PM EDT | Special Weather Statement | TBW | Polk | 43 min |
| Aug 12, 5:40 PM EDT | Special Weather Statement | TBW | Polk | 35 min |
Nearby
Tornado Warnings in Florida, 2009Every tornado warning in 2009Tornadoes in 2009
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.