Alert archive / Florida / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 8, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 16, 2003, 11:05 PM EST for Pinellas County, Florida. It was in force for 40 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
- Mar 16, 2003, 11:05 PM EST (04:05 UTC)
- Expired
- Mar 16, 2003, 11:45 PM EST
- In force
- 40 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
County Pinellas County, FL
The radar
The Tampa radar (KTBW), 49 km from the middle of the area, began a volume at 04:08 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.
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 00:00Z, 4.1 hours before the alert went out and 49 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
- 372 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1109 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
071 WUUS52 KTBW 170405 SVRTBW FLC103-170445- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1103 PM EST SUN MAR 16 2003 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... PINELLAS COUNTY IN FLORIDA. * UNTIL 1145 PM EST * AT 1103 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS...FROM 15 MILES WEST OF SEMINOLE TO 11 MILES SOUTHWEST OF SAINT PETE BEACH...MOVING NORTHEAST AT 35 MPH. * SEVERE THUNDERSTORMS WILL AFFECT... INDIAN ROCKS BEACH. BELLEAIR. CLEARWATER. DUNEDIN. SAFETY HARBOR. OLDSMAR. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. MOVE INSIDE A STURDY BUILDING. DAMAGING WIND...TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 2785 8313 2752 8288 2777 8249 2814 8275 $$ 23
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 Mar 16, 7:20 PM EST, 3 hours 45 minutes earlier.
Area forecast discussion, Mar 16, 7:20 PM EST, 3 hours 45 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 720 PM EST SUN MAR 16 2003 ...SHORT TERM... WILL BE MAKING A QUICK ZONE UPDATE SOON TO REVISE TIMING OF SHOWERS AND THUNDERSTORMS OVER THE GULF WATERS. WILL ALSO BE ABLE TO REMOVE AFTERNOON POP WORDING SOON FOR THE INTERIOR. MAIN REASON FOR UPDATE IS TO TAKE OUT AFTER MIDNIGHT WORDING AS DISTANCE SPEED TOOLS SHOW THE PRECIP ARRIVING VERY CLOSE TO THE MIDNIGHT HOUR. WITH THE SHIFT NORTHWARD IN UPPER DISTURBANCE...FORWARD MOTION OF SQUALL LINE WILL SLOW...BUT PREFER NOT TO GET TOO CUTE WITH THE TIMING. OTHERWISE...WILL MAINTAIN HIGH END LIKELY POPS OVERNIGHT AS MODELS DOING A DECENT JOB DEPICTING CURRENT RAIN BANDS IN THE GULF. THE KEY TO RAIN FOR THE SOUTHWEST COAST WILL BE THE VORT LOBE EJECTING OUT OF NORTHERN CUBA AND INTO THE KEYS AS DEPICTED BY THE GFS AND MESO-ETA. WATER VAPOR VERIFIES THIS SOLUTION AND CURRENT MOSAIC RADAR INDICATES A GOOD DEAL OF CONVECTION JUST WEST OF THE KEYS. AS THE PARENT UPPER LOW SWINGS NORTHWARD...THIS PRECIP SHOULD FILL INTO THE SOUTHWEST COAST NICELY ALBEIT WEAKENED FROM THE SLIGHTLY COOLER SHELF WATERS. MAY NEED ADDITIONAL UPDATE LATER THIS EVENING TO UP TO CATEGORICAL POPS AS SYSTEM CONTINUES TO EVOLVE. AS TO SEVERE POTENTIAL...EXPECT MOSTLY SHOWERS WITH EMBEDDED THUNDERSTORMS. WITH LOW WET BULB ZEROS IN COLD ATMOSPHERE ALOFT... HAIL WILL AGAIN BE THE MAIN THREAT. EXPECT ONLY THE STRONGEST FEW STORMS DURING THE OVERNIGHT PERIOD TO BE STRONG ENOUGH TO PUSH STORM CORES TO THE NEEDED 15K TO 20K FEET. ...MARINE... AGAIN...WILL REVISE WORDING TO ACCOUNT FOR REVISED TIMING OF THE LINE. OTHERWISE...CURRENT PACKAGE LOOKS GOOD AND NO CHANGES PLANNED. .TBW...NONE. JTD
Hazardous weather outlook, Mar 16, 5:30 AM EST, 17 hours 35 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-161630- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 530 AM EST SUN MAR 16 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: SCATTERED THUNDERSTORMS WILL FORM THIS AFTERNOON ALONG THE SEABREEZES AND THEN MOVE NORTHEAST ACROSS THE INTERIOR COUNTIES LATER IN THE AFTERNOON. THE MAIN THREATS WILL BE GUSTY WINDS OR POSSIBLE SMALL HAIL. DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY: A WEAK SURFACE DISTURBANCE MOVING ALONG THE GULF COAST WILL MAINTAIN A MOIST AND UNSTABLE AIR MASS OVER THE AREA WITH SCATTERED THUNDERSTORM MONDAY AND ENDING BY EARLY TUESDAY. THUNDERSTORMS WILL BE ISOLATED WEDNESDAY AND THURSDAYS AFTERNOONS BEFORE BECOMING SCATTERED FRIDAY WHEN A COLD FRONT TRAVERSES THE REGION. .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 RKR
In the hours before
Local storm report, Mar 16, 5:45 PM EST, 5 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL...CORRECTED
545 PM EST SUN MAR 16 2003
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0537 PM CYPRESS GARDENS FL .75 INCH HAIL
03/16/03 POLK REPORTED BY STORM SPOTTER.
JTDLocal storm report, Mar 16, 8:49 PM EST, 2 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
849 PM EST SUN MAR 16 2003
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0330 PM RIVERVIEW FL .75 INCH HAIL
03/16/03 HILLSBOROUGH REPORTED BY OFF-DUTY NWS
EMPLOYEE.
JCMThe office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 9:02 PM EST | Special Marine Warning | TBW | 58 min | |
| Mar 16, 10:12 PM EST | Special Marine Warning | TBW | 2 hr | |
| Mar 16, 11:54 PM EST | Severe Thunderstorm Warning | TBW | Hillsborough | 51 min |
| Mar 17, 3:13 PM EST | Special Marine Warning | TBW | 62 min | |
| Mar 17, 3:48 PM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Manatee, Pinellas, Sarasota | 27 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; radar from the NEXRAD Level II archive.