Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 13, NWS Tampa Bay, FL

August 1, 2008Pinellas County, Florida

NWS Tampa Bay, FL issued this tornado warning at Aug 1, 2008, 11:44 AM EDT for Pinellas County, Florida. It was in force for 16 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 1, 2008, 11:44 AM EDT (15:44 UTC)
Expired
Aug 1, 2008, 12:00 PM EDT
In force
16 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon

County Pinellas County, FL

The radar

The Tampa radar (KTBW), 47 km from the middle of the area, began a volume at 15:43 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, 3.7 hours before the alert went out and 47 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.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2008-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2148 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2008-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2148 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS52 KTBW 011544
TORTBW
FLC103-011600-
/O.NEW.KTBW.TO.W.0013.080801T1544Z-080801T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1144 AM EDT FRI AUG 1 2008

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN PINELLAS COUNTY IN FLORIDA.

* UNTIL NOON EDT

* AT 1142 AM EDT...PINELLAS COUNTY EMERGENCY MANAGEMENT REPORTED A   
  WATERSPOUT 1 MILE WEST OF INDIAN ROCKS BEACH...MOVING EAST TOWARD  
  SHORE.

* THE TORNADO WILL BE NEAR...
  INDIAN ROCKS BEACH BY 1145 AM EDT.
  BELLEAIR BY 1150 AM EDT.
  
A WATERSPOUT IS MOVING TOWARD SHORE. THIS IS A DANGEROUS STORM MOVE 
INTO THE INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY 
BUILDING...AWAY FROM WINDOWS. COVER YOUR HEAD AND BODY WITH PILLOWS 
OR BLANKETS.

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN RUSKIN BY CALLING 813-645-2323.


&&

LAT...LON 2797 8284 2799 8284 2802 8272 2779 8269
      2779 8282 2782 8285 2793 8286 2794 8286
TIME...MOT...LOC 1542Z 267DEG 18KT 2788 8285

$$

17
1 follow-up statement
000 
WWUS52 KTBW 011557
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1157 AM EDT FRI AUG 1 2008

FLC103-011606-
/O.EXP.KTBW.TO.W.0013.000000T0000Z-080801T1600Z/
PINELLAS-
1156 AM EDT FRI AUG 1 2008

...THE TORNADO WARNING FOR WESTERN PINELLAS COUNTY WILL EXPIRE AT
NOON EDT...

AT 1156 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THE 
WATERSPOUT HAS DISSIPATED...THUS THE WARNING HAS BEEN ALLOWED TO 
EXPIRE.

&&

LAT...LON 2797 8284 2799 8284 2802 8272 2779 8269
      2779 8282 2782 8285 2793 8286 2794 8286
TIME...MOT...LOC 1556Z 267DEG 18KT 2788 8277

$$

17

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 1, 11:43 AM EDTSpecial Marine WarningTBW32 min

Nearby

Tornado Warnings in Florida, 2008Every tornado warning in 2008Tornadoes in 2008

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.