Alert archive / Florida / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 81, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 23, 2003, 12:45 PM EDT for Hernando County, Sumter County, Florida. It was in force for 45 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 23, 2003, 12:45 PM EDT (16:45 UTC)
- Expired
- Jul 23, 2003, 1:30 PM EDT
- In force
- 45 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
Counties Hernando County, FL, Sumter 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, 4.8 hours before the alert went out and 107 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
- 1747 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
930 WUUS52 KTBW 231645 SVRTBW FLC053-119-231730- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1245 PM EDT WED JUL 23 2003 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL SUMTER COUNTY IN FLORIDA. EASTERN HERNANDO COUNTY IN FLORIDA. * UNTIL 130 PM EDT * AT 1245 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...9 MILES SOUTHWEST OF BUSHNELL...MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... BUSHNELL. 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 2857 8230 2849 8216 2869 8184 2885 8202 $$ 13
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 23, 9:00 AM EDT, 3 hours 45 minutes earlier.
Area forecast discussion, Jul 23, 9:00 AM EDT, 3 hours 45 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 900 AM EDT WED JUL 23 2003 12Z SOUNDING SHOWS SOME SUBTLE DIFFERENCES FROM 24 HOURS AGO...BUT GENERALLY VERY LITTLE CHANGE. MAIN ITEM OF NOTICE IS THE WINDS AT 300 MB AND ABOVE. THEY HAVE SWITCHED TO AN EASTERLY COMPONENT...AND INDICATOR THE RIDGE IS TRY TO BUILD IN ABOVE 25K FEET. THERE IS ALSO SOME DRYING IN THAT LAYER...WHICH CAN ALSO BE SEEN ON THE WATER VAPOR. THIS WILL NOT HAVE MUCH EFFECT ON OUR SENSIBLE WEATHER TODAY. CURRENT FORECAST LOOKS IN THE BALLPARK. NO CHANGES PLANNED TO ZONES OR MARINE. .TBW...NONE. ALSHEIMER
Hazardous weather outlook, Jul 23, 6:00 AM EDT, 6 hours 45 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-231400- WEST CENTRAL AND SOUTHWEST FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL FL 600 AM EDT WED JUL 23 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: TODAY WILL BEGIN THE TRANSITION FROM SOUTHWEST FLOW ALOFT TO SOUTHEAST FLOW ALOFT. THIS MEANS ONE MORE DAY FOR A GOOD CHANCE OF WATERSPOUTS. LOOKING INLAND...SCATTERED TO NUMEROUS THUNDERSTORMS CAN BE EXPECTED THIS AFTERNOON INTO EARLY EVENING. MOST STORMS WILL NOT PRODUCE SEVERE WEATHER. HOWEVER...A FEW OF THE STORMS AWAY FROM THE COAST MAY PRODUCE NICKEL SIZE HAIL AND BRIEF DOWNBURST WINDS TO 60 MPH. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY: A RIDGE OF HIGH PRESSURE ACROSS SOUTHERN FLORIDA WILL MOVE INTO NORTHERN FLORIDA FRIDAY. THIS WILL BRING A MORE TYPICAL SUMMERTIME PATTERN MAINLY AFTERNOON AND EARLY EVENING THUNDERSTORMS ALONG THE EAST COAST SEA BREEZE. .SPOTTER CALL TO ACTION STATEMENT... SEVERE WEATHER WILL BE ISOLATED AND RANDOM THIS AFTERNOON SO ORGANIZED ACTIVATION IS NOT REQUIRED. HOWEVER...SPOTTERS NEAR THE COAST SHOULD BE ON THE LOOKOUT FOR WATERSPOUTS. SPOTTERS ACROSS THE INLAND COUNTIES SHOULD BE ON THE LOOKOUT FOR HAIL... LOCALIZED FLOODING...AND BRIEF DOWNBURST WINDS THIS AFTERNOON. NOAH
In the hours before
Special weather statement, Jul 23, 12:39 PM EDT, 6 minutes before
FLZ043-048-049-051-052-231730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1239 PM EDT WED JUL 23 2003 ...STRONG THUNDERSTORMS WILL AFFECT JUST EAST OF INETERSTATE 75 FROM WIMAUMA NORTHWARD... A BROKEN LINE OF THUNDERSTORMS...MOVING NORTHEAST AT 15 MPH...WILL AFFECT VALRICO...BRANDON...BLOOMINGDALE...SEFFNER...AND RIDGE MANOR UNTIL 130 PM EDT. GUSTY WINDS UP TO 40 MPH WILL OCCUR. EXCESSIVE CLOUD TO GROUND LIGHTNING IS EXPECTED IF OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. IF INDOORS...REFRAIN FROM USING ELECTRICAL APPLIANCES. THIS STORM WILL PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS.
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 12:44 PM EDT | Special Marine Warning | TBW | 16 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.