Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 85, NWS Tampa Bay, FL

July 26, 2003Sarasota County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 26, 2003, 4:19 PM EDT for Sarasota County, Florida. It was in force for 26 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
Jul 26, 2003, 4:19 PM EDT (20:19 UTC)
Expired
Jul 26, 2003, 4:45 PM EDT
In force
26 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Sarasota County, FL

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.3 hours before the alert went out and 71 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 2003-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 781 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2003-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
781 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
980 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
-5 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.

917 
WUUS52 KTBW 262019
SVRTBW
FLC115-262045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
418 PM EDT SAT JUL 26 2003

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN SARASOTA COUNTY IN FLORIDA.

* UNTIL 445 PM EDT

* AT 418 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS...6 MILES SOUTHEAST OF
  VENICE...MOVING NORTHWEST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  VENICE GARDENS.
  VENICE.
  NOKOMIS.

SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND
HAIL THE SIZE OF PENNIES OR LARGER. MOVE TO A PLACE OF SAFETY.

&&

LAT...LON 2698 8237 2709 8230 2718 8245 2708 8251

$$

33

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tampa Bay, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 2:30 PM EDT, 1 hour 49 minutes earlier.

Area forecast discussion, Jul 26, 2:30 PM EDT, 1 hour 49 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
230 PM EDT SAT JUL 26 2003

CURRENTLY/SHORT TERM (TODAY THRU MON)...RIDGE OVER N FL AND
ASOCIATED ESE FLOW HAS PUSHED TSTMS INTO THE SOUTH AND EASTERN FA.
CLOUDS AND THUNDERSTORM ACTIVITY WILL INCREASE IN INTENSITY WEST
COAST SEA BREEZE BOUNDARY DEVELOPS. THE MOST VIGOROUS TSTMS SHOULD BE
NORTH OF TAMPA BAY WHERE AFTERNOON HEATING SHOULD BE GREATER AND GULF
SEA BREEZE STRONGER. DRIER AND SLIGHTLY COOLER MID/UPPER AIR
ASSOCIATED WITH TUTT TO THE EAST STILL OFF THE LOWER EAST COAST AND
SHOULD PROVIDE MINOR ENHANCEMENT TO THE AFTERNOON THUNDERSTORMS
SUNDAY. BY TUESDAY SURFACE RIDGE MOVES SOUTHWARD ACROSS OUR CENTRAL
FL PRODUCING ONSHORE FLOW FROM TAMPA BAY NORTH WITH MORNING AND
MIDDAY THUNDERSTORMS NORTH DEVELOPING LATER TO THE SOUTH.

EXTENDED (TUE THRU SAT)...THE SURFACE RIDGE DROPS INTO THE SOUTH-
CENTRAL CWFA TUE AND THEN SOUTH FL WED BEFORE LIFTING BACK INTO THE
CENTRAL CWFA THU AND THEN ACROSS THE NORTHERN PART OF THE STATE FOR
FRI AND SAT...WHEN A WEAK EASTERLY WAVE MOVES ACROSS THE SOUTHERN
HALF OF THE STATE. HOWEVER...POPS WILL STAY IN THE SCATTERED RANGE
WITH AFTERNOON AND EARLY EVENING TIMING ACROSS THE LAND. WINDS WILL
SHIFT AS THE RIDGE AXIS MOVES BY AND ARE EXPECTED TO STAY LIGHT
ENOUGH FOR AFTERNOON SEA BREEZES SOUTH OF THE RIDGE AXIS.
TEMPERATURES WILL REMAIN IN THE NORMAL RANGE THOUGH OUT THE PERIOD.

MARINE... MODERATE EASTERLY FLOW WITH LATE AFTERNOON SEABREEZES
HUGGING THE COAST. FLOW EVOLVES EARLY IN THE WEEK AS THE HIGH
PRESSURE RIDGE SINKS SOUTHWARD. SPEEDS LESS THAN 15 KNOTS WITH SEAS 3
FEET OR LESS THROUGH THE PERIOD.

FIRE WEATHER... NO CONCERNS.

CCFTBW
TPA BB 073/092 075/090 078 03242
FMY BB 074/092 074/091 076 03442
GIF BB 073/092 073/092 075 03242
SRQ BB 073/090 074/090 076 03242
BKV BB 071/092 071/091 073 03242

.TBW...NONE.

CP/RR
Hazardous weather outlook, Jul 26, 5:34 AM EDT, 10 hours 45 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-261430-

WEST CENTRAL AND SOUTHWEST FLORIDA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL FL
534 AM EDT SAT JUL 26 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST
FLORIDA.

.DAY ONE...TODAY:

SCATTERED AFTERNOON THUNDERSTORMS ARE EXPECTED AS DAYTIME
TEMPERATURES TO 90 OR ABOVE WILL ACT ON A MOIST ATMOSPHERE. THE
STRONGEST THUNDERSTORMS WILL DEVELOP ON THE GULF AND EAST COAST SEA
BREEZES...WITH ISOLATED SEVERE STORMS POSSIBLE IN LOCATIONS WHERE
THE BOUNDARIES COLLIDE LATE IN THE AFTERNOON INTO THE EARLY EVENING
HOURS. THE STRONGEST STORMS WILL CONTAIN HAIL...HEAVY RAIN IN
EXCESS OF TWO INCHES...AND WIND GUSTS TO 50 MPH OR HIGHER.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY:

SOUTHEASTERLY LOW LEVEL FLOW WILL CONTINUE SUNDAY AS A RIDGE
OF HIGH PRESSURE REMAINS OVER NORTHERN FLORIDA. THIS WILL PUSH
THE EAST COAST SEA BREEZE INTO THE AREA AND CREATE AFTERNOON AND
EARLY EVENING THUNDERTSORMS. WINDS WILL VEER TO THE SOUTHWEST BY
EARLY NEXT WEEK AS LARGE UPPER LEVEL TROUGH MOVES INTO THE EASTERN
QUARTER OF THE U.S. THIS WILL BRING LATE MORNING STORMS TO THE COAST
AND SCATTERED STORMS IN THE AFTERNOON.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED THIS AFTERNOON AND EARLY EVENING.
WEATHER SPOTTERS ARE REMINDED TO RELAY ANY REPORTS OF SIGNIFICANT
WEATHER TO THE NWS OFFICE IN RUSKIN.

ALSHEIMER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 2:29 PM EDTSpecial Marine WarningTBW46 min
Jul 26, 4:20 PM EDTSpecial Marine WarningTBW40 min
Jul 26, 4:30 PM EDTSpecial Marine WarningTBW90 min
Jul 26, 5:40 PM EDTSpecial Marine WarningTBW80 min
Jul 26, 5:45 PM EDTSevere Thunderstorm WarningTBWPinellas30 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003Every severe thunderstorm warning in 2003

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.