Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 54, NWS Tampa Bay, FL

June 18, 2003Pinellas County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 18, 2003, 3:57 PM EDT for Pinellas County, Florida. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 18, 2003, 3:57 PM EDT (19:57 UTC)
Expired: Jun 18, 2003, 5:00 PM EDT
In force: 63 min
Issued by: NWS Tampa Bay, FL
Area: Counties, with a storm outline in the text

County Pinellas County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.0 hours before the alert went out and 40 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1088 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 18, 3:30 PM EDT, 27 minutes earlier.

Area forecast discussion, Jun 18, 3:30 PM EDT, 27 minutes before

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Hazardous weather outlook, Jun 18, 6:00 AM EDT, 9 hours 57 minutes before

FLZ039-042-043-048>052-055>057-060>062-065-181445-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
600 AM EDT WED JUN 18 2003

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

.DAY ONE...TODAY:
A MOIST TROPICAL AIR MASS ACROSS WEST CENTRAL AND SOUTHWEST FLORIDA
WILL HELP TO FUEL SCATTERED TO NUMEROUS THUNDERSTORMS. SOME STORMS
MAY DRIFT ONSHORE FROM THE GULF OF MEXICO THIS MORNING. HOWEVER...
HEAVIER THUNDERSTORMS WILL FORM AND BECOME NUMEROUS IN THE AFTERNOON
AND THEN CONTINUE INTO THE EVENING HOURS.

THE HEAVIER THUNDERSTORMS WILL GENERATE GUSTY WINDS IN EXCESS OF 35
MPH...DANGEROUS LIFE THREATENING LIGHTNING...AND TEMPORARY DOWNPOURS
WHICH MAY CAUSE LOCALIZED FLOODING OF POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY:
THE MOIST TROPICAL AIR MASS WILL CONTINUE INTO SATURDAY WITH
THUNDERSTORMS SCATTERED TO NUMEROUS THUNDERSTORMS ACROSS THE AREA.
SUNDAY THROUGH TUESDAY WILL SEE A RETURN TO SCATTERED AFTERNOON
STORMS.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT
HTTP://WWW.SRH.NOAA.GOV/TBW

In the hours before

Special weather statement, Jun 18, 3:07 PM EDT, 50 minutes before

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Local storm report, Jun 18, 3:19 PM EDT, 38 minutes before

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Local storm report, Jun 18, 3:34 PM EDT, 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 11:46 AM EDT	Tornado Warning	TBW	Manatee	29 min
Jun 18, 11:49 AM EDT	Special Marine Warning	TBW		71 min
Jun 18, 1:43 PM EDT	Special Marine Warning	TBW		2 hr
Jun 18, 2:36 PM EDT	Special Marine Warning	TBW		114 min
Jun 18, 4:33 PM EDT	Special Marine Warning	TBW		27 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003 Every 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.