Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 39, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 11, 2012, 3:22 PM EDT for Hillsborough County, Pasco County, Pinellas County, Florida. It was in force for 53 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 11, 2012, 3:22 PM EDT (19:22 UTC)
- Expired
- Jul 11, 2012, 4:15 PM EDT
- In force
- 53 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Storm-based polygon
Counties Hillsborough County, FL, Pasco County, FL, Pinellas County, FL
The radar
The Tampa radar (KTBW), 37 km from the middle of the area, began a volume at 19:23 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 3:35 PM EDT | TSTM WND GST 44 | Saint Petersburg, FL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 7.4 hours before the alert went out and 37 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
- 1038 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 812 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
926
WUUS52 KTBW 111922
SVRTBW
FLC057-101-103-112015-
/O.NEW.KTBW.SV.W.0039.120711T1922Z-120711T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
322 PM EDT WED JUL 11 2012
THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
HILLSBOROUGH COUNTY IN WEST CENTRAL FLORIDA...
PINELLAS COUNTY IN WEST CENTRAL FLORIDA...
PASCO COUNTY IN WEST CENTRAL FLORIDA...
* UNTIL 415 PM EDT.
* AT 322 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MOON LAKE ESTATES TO 6 MILES
WEST OF RUSKIN...OR ALONG A LINE EXTENDING FROM 9 MILES EAST OF NEW
PORT RICHEY TO 8 MILES SOUTHEAST OF DOWNTOWN SAINT PETERSBURG...AND
MOVING NORTHWEST AT 10 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FORT
DESOTO PARK...HUDSON...SAINT PETERSBURG...PINELLAS PARK...
HOLIDAY...TARPON SPRINGS...PALM HARBOR...CLEARWATER...SAINT PETE
BEACH...LARGO...DUNEDIN...SEMINOLE...LAKE FERN...ODESSA...TOWN N
COUNTRY...EGMONT KEY...PINELLAS POINT...WESTCHASE...VENETIAN ISLES
AND BOYD HILL NATURE PRESERVE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 2822 8285 2819 8283 2838 8271 2835 8239
2765 8234 2766 8256 2789 8241 2792 8248
2782 8246 2783 8254 2796 8256 2797 8266
2798 8262 2800 8264 2799 8267 2782 8258
2757 8277 2821 8286
TIME...MOT...LOC 1922Z 135DEG 8KT 2829 8257 2772 8253
$$3 follow-up statements
362
WWUS52 KTBW 111937
SVSTBW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
337 PM EDT WED JUL 11 2012
FLC057-101-103-112015-
/O.CON.KTBW.SV.W.0039.000000T0000Z-120711T2015Z/
HILLSBOROUGH FL-PINELLAS FL-PASCO FL-
337 PM EDT WED JUL 11 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHWESTERN PASCO...PINELLAS AND WESTERN HILLSBOROUGH
COUNTIES...
AT 336 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEW PORT RICHEY TO 6 MILES SOUTHEAST OF DOWNTOWN
SAINT PETERSBURG...MOVING NORTHWEST AT 10 MPH.
SEVERE THUNDERSTORMS WILL AFFECT PORTIONS OF...
SNELL ISLE.
VINOY PARK.
BAYONET POINT.
JASMINE ESTATES.
OLDSMAR.
HUDSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING IS
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 2822 8286 2819 8283 2838 8271 2833 8242
2766 8238 2765 8238 2766 8255 2789 8241
2792 8248 2782 8246 2783 8252 2796 8256
2799 8267 2782 8258 2758 8277 2813 8279
2821 8286
TIME...MOT...LOC 1936Z 135DEG 8KT 2830 8266 2769 8261
$$528
WWUS52 KTBW 111956
SVSTBW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
356 PM EDT WED JUL 11 2012
FLC057-101-103-112015-
/O.CON.KTBW.SV.W.0039.000000T0000Z-120711T2015Z/
HILLSBOROUGH FL-PINELLAS FL-PASCO FL-
356 PM EDT WED JUL 11 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHWESTERN PASCO...PINELLAS AND NORTHWESTERN HILLSBOROUGH
COUNTIES...
AT 356 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM LAKE FERN TO HIGHPOINT TO TROPICANA FIELD...MOVING
NORTHWEST AT 10 MPH.
SEVERE THUNDERSTORMS WILL AFFECT PORTIONS OF...
SAFETY HARBOR.
HIGHPOINT.
LEALMAN.
PINELLAS PARK.
KENNETH CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING IS
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 2818 8282 2817 8261 2806 8244 2792 8248
2782 8246 2783 8252 2796 8256 2799 8267
2782 8258 2770 8268 2770 8271 2778 8278
2813 8279 2816 8282
TIME...MOT...LOC 1956Z 135DEG 8KT 2813 8266 2795 8272
2778 8266
$$955
WWUS52 KTBW 112015
SVSTBW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
415 PM EDT WED JUL 11 2012
FLC057-101-103-112025-
/O.EXP.KTBW.SV.W.0039.000000T0000Z-120711T2015Z/
HILLSBOROUGH FL-PINELLAS FL-PASCO FL-
415 PM EDT WED JUL 11 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN PASCO...PINELLAS
AND NORTHWESTERN HILLSBOROUGH COUNTIES HAS EXPIRED...
THE STORM WILL CONTINUE TO PRODUCE NON-SEVERE WEATHER OVER...
PINELLAS PARK.
ALTHOUGH THE STORM HAS WEAKENED BELOW SEVERE LIMITS IT WILL CONTINUE
TO PRODUCE STRONG GUSTY WINDS...HEAVY RAIN...UNTIL IT FULLY
DISSIPATES.
LAT...LON 2818 8282 2817 8261 2806 8244 2792 8248
2782 8246 2783 8252 2796 8256 2799 8267
2782 8258 2770 8268 2770 8271 2778 8278
2813 8279 2816 8282
TIME...MOT...LOC 2015Z 135DEG 8KT 2816 8269 2798 8275
2781 8269
$$The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 9:35 PM EDT | Special Weather Statement | TBW | Polk | 25 min |
| Jul 10, 10:24 PM EDT | Special Marine Warning | TBW | 66 min | |
| Jul 11, 2:05 PM EDT | Special Weather Statement | TBW | Manatee | 55 min |
| Jul 11, 2:23 PM EDT | Special Weather Statement | TBW | Citrus, Hernando, Hillsborough, Pasco | 52 min |
| Jul 11, 2:25 PM EDT | Special Marine Warning | TBW | 50 min | |
| Jul 11, 2:28 PM EDT | Special Weather Statement | TBW | Levy | 47 min |
| Jul 11, 2:41 PM EDT | Special Marine Warning | TBW | 49 min | |
| Jul 11, 2:44 PM EDT | Special Weather Statement | TBW | Manatee | 16 min |
| Jul 11, 3:05 PM EDT | Special Weather Statement | TBW | Hernando, Hillsborough, Manatee, Pasco, Pinellas, Sarasota | 55 min |
| Jul 11, 3:29 PM EDT | Special Marine Warning | TBW | 46 min | |
| Jul 11, 3:44 PM EDT | Special Marine Warning | TBW | 106 min | |
| Jul 11, 3:48 PM EDT | Areal Flood Advisory | TBW | Hillsborough, Pasco, Pinellas | 57 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.