Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 2, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Apr 4, 2012, 9:47 PM EDT for Hillsborough County, Manatee County, Pinellas County, Florida. It was in force for 58 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
- Apr 4, 2012, 9:47 PM EDT (01:47 UTC)
- Expired
- Apr 4, 2012, 10:45 PM EDT
- In force
- 58 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Storm-based polygon
Counties Hillsborough County, FL, Manatee County, FL, Pinellas County, FL
The radar
The Tampa radar (KTBW), 27 km from the middle of the area, began a volume at 01:49 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 00:00Z, 1.8 hours before the alert went out and 27 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
- 765 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1179 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
372
WUUS52 KTBW 050147
SVRTBW
FLC057-081-103-050245-
/O.NEW.KTBW.SV.W.0002.120405T0147Z-120405T0245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
947 PM EDT WED APR 4 2012
THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN HILLSBOROUGH COUNTY IN FLORIDA.
NORTHWESTERN MANATEE COUNTY IN FLORIDA.
PINELLAS COUNTY IN FLORIDA.
* UNTIL 1045 PM EDT
* AT 944 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 22 MILES WEST OF BELLEAIR BEACH TO 23 MILES WEST OF EGMONT
KEY...OR ALONG A LINE EXTENDING FROM 24 MILES WEST OF DUNEDIN TO 26
MILES WEST OF FORT DESOTO PARK...AND MOVING EAST AT 35 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
HONEYMOON ISLAND...CLEARWATER BEACH.
DUNEDIN...CALADESI ISLAND.
PALM HARBOR...CRYSTAL BEACH.
SAFETY HARBOR...SAINT PETE CLEARWATER AIRPORT.
VENETIAN ISLES...OLDSMAR.
TAMPA...WESTCHASE...TOWN N COUNTRY.
THIS INCLUDES INTERSTATE 75 BETWEEN EXITS 224 AND 229.
THIS INCLUDES INTERSTATE 275 BETWEEN EXITS 2 AND 53.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
&&
LAT...LON 2808 8285 2806 8280 2816 8281 2816 8245
2781 8244 2785 8256 2796 8256 2795 8271
2789 8258 2769 8271 2759 8262 2762 8258
2776 8245 2750 8245 2748 8272 2754 8275
2760 8263 2765 8270 2758 8278
TIME...MOT...LOC 0146Z 266DEG 30KT 2802 8316 2753 8312
$$2 follow-up statements
163
WWUS52 KTBW 050201
SVSTBW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1001 PM EDT WED APR 4 2012
FLC057-081-103-050245-
/O.CON.KTBW.SV.W.0002.000000T0000Z-120405T0245Z/
HILLSBOROUGH FL-PINELLAS FL-MANATEE FL-
1001 PM EDT WED APR 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM EDT
FOR NORTHWESTERN MANATEE...PINELLAS AND WESTERN HILLSBOROUGH
COUNTIES...
AT 958 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 14 MILES
WEST OF HONEYMOON ISLAND TO 17 MILES WEST OF ANNA MARIA ISLAND...OR
ALONG A LINE EXTENDING FROM 16 MILES WEST OF DUNEDIN TO 18 MILES WEST
OF FORT DESOTO PARK...MOVING EAST AT 35 MPH.
SEVERE THUNDERSTORMS WILL AFFECT PORTIONS OF...
HONEYMOON ISLAND.
CRYSTAL BEACH.
PALM HARBOR.
SAFETY HARBOR.
OLDSMAR.
TAMPA.
WESTCHASE.
THIS INCLUDES INTERSTATE 75 BETWEEN EXITS 224 AND 229.
THIS INCLUDES INTERSTATE 275 BETWEEN EXITS 2 AND 53.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO DAMAGING WINDS...FREQUENT LIGHTNING IS OCCURRING
WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF
NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 2808 8285 2806 8280 2816 8281 2816 8245
2781 8244 2785 8256 2796 8256 2795 8271
2789 8258 2769 8271 2759 8262 2762 8258
2776 8245 2750 8245 2748 8272 2754 8275
2760 8263 2765 8270 2758 8278
TIME...MOT...LOC 0200Z 266DEG 30KT 2803 8303 2754 8299
$$048
WWUS52 KTBW 050241
SVSTBW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1041 PM EDT WED APR 4 2012
FLC057-081-103-050250-
/O.EXP.KTBW.SV.W.0002.000000T0000Z-120405T0245Z/
HILLSBOROUGH FL-PINELLAS FL-MANATEE FL-
1041 PM EDT WED APR 4 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MANATEE...
PINELLAS AND WESTERN HILLSBOROUGH COUNTIES WILL EXPIRE AT 1045 PM
EDT...
ALTHOUGH THE STORMS HAVE WEAKENED BELOW SEVERE LIMITS THEY WILL
CONTINUE TO PRODUCE GUSTY WINDS...HEAVY RAIN...AND DEADLY CLOUD TO
GROUND LIGHTNING.
LAT...LON 2808 8285 2806 8280 2816 8281 2816 8245
2781 8244 2785 8256 2796 8256 2795 8271
2789 8258 2769 8271 2759 8262 2762 8258
2776 8245 2750 8245 2748 8272 2754 8275
2760 8263 2765 8270 2758 8278
TIME...MOT...LOC 0240Z 266DEG 30KT 2805 8265 2756 8261
$$The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 8:22 PM EDT | Special Marine Warning | TBW | 53 min | |
| Apr 4, 9:20 PM EDT | Special Marine Warning | TBW | 55 min | |
| Apr 4, 10:12 PM EDT | Special Marine Warning | TBW | 63 min | |
| Apr 4, 11:10 PM EDT | Special Marine Warning | TBW | 35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.