Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 69, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 7, 2004, 1:55 PM EDT for DeSoto County, Sarasota County, Florida. It was in force for 35 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 7, 2004, 1:55 PM EDT (17:55 UTC)
- Expired
- Jul 7, 2004, 2:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
Counties DeSoto County, FL, Sarasota County, FL
The radar
The Tampa radar (KTBW), 72 km from the middle of the area, began a volume at 17:55 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 12:00Z, 5.9 hours before the alert went out and 72 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
- 1745 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 991 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KTBW 071755 SVRTBW FLC027-115-071830- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 155 PM EDT WED JUL 7 2004 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN DESOTO COUNTY IN FLORIDA. EASTERN SARASOTA COUNTY IN FLORIDA. * UNTIL 230 PM EDT * AT 155 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...OVER EASTERN SARASOTA COUNTY...MOVING EAST AT 5 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... FORT OGDEN. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF PENNIES OR LARGER. MOVE TO A PLACE OF SAFETY. MOVE INSIDE A STURDY BUILDING. DAMAGING WIND...LARGE HAIL... TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 2720 8211 2705 8211 2704 8192 2722 8192 $$ 69
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 7, 1:35 PM EDT, 20 minutes earlier.
Area forecast discussion, Jul 7, 1:35 PM EDT, 20 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 135 PM EDT WED JUL 7 2004 .SHORT TERM (TONIGHT-FRI)...SCATTERED THUNDERSTORMS HAVE DEVELOPED ALONG THE SEABREEZE BOUNDARY AND CONTINUE OVER THE CENTRAL COASTAL WATERS. THE THUNDERSTORMS WILL CONTINUE TO PUSH INLAND WITH THE SEABREEZE BOUNDARY THROUGH THE AFTERNOON AND ALSO DEVELOP ALONG OUTFLOW BOUNDARIES AND THE SEABREEZE COLLISION BOUNDARY. WITH WINDS ALOFT REMAINING LIGHT AND THE SFC RIDGE SLOWLY LIFTING NORTH...EXPECT MUCH OF THE SAME FOR TOMORROW. FOR FRIDAY...AS WINDS BECOME MORE SOUTHEASTERLY ACROSS THE SOUTHERN HALF OF THE CWA...EXPECT PRECIP TIMING TO BE MORE AFTERNOON AND EVENING TSTMS THERE AND LATER COVERAGE NEAR THE COAST. KEPT TEMPS IN THE LOWER TO MID 90S FOR HIGHS WITH LOWER TO MID 70S FOR LOWS. .LONG TERM (FRI NIGHT-WED)...MODELS TRYING TO DEEPEN UPPER LEVEL TROUGH ALONG THE SOUTHEAST U.S. COAST DURING THE PERIOD WITH SURFACE BOUNDARY PUSHING SOUTH INTO NORTH FLORIDA. SEEMS A LITTLE OVERDONE AT THIS TIME...SO WILL CONTINUE WITH SOUTH TO SOUTHEAST FLOW WITH SCATTERED MAINLY AFTERNOON AND EVENING CONVECTION EACH DAY. TEMPERATURES WILL REMAIN NEAR NORMAL THROUGH THE PERIOD. && .MARINE...SFC RIDGE AXIS WILL SLOWLY DRIFT NORTHWARD THROUGH THE PERIOD...BACKING WINDS OVER THE SOUTHERN WATERS TO THE SOUTHEAST. WIND SPEEDS WILL REMAIN LIGHT AND KEEP SEAS SUBDUED. NO HIGHLIGHTS. && .FIRE WEATHER...DRY AIR ALOFT TO MOVE ACROSS SOUTHERN FL...GRAZING THE SOUTHERN COUNTIES...AND THEN PUSH NORTHEAST OVER THE GULF. THIS WILL CAUSE AFTERNOON RHS TO DROP INTO THE UPPER 40 PERCENT RANGE... WHICH IS STILL ABOVE CRITICAL VALUES. OTHERWISE NO CONCERNS AS LOW LEVEL MOISTURE WILL REMAIN ABUNDANT. && .PRELIMINARY POINT TEMPS/POPS... TPA 078 092 077 092 / 20 40 20 40 FMY 074 093 074 093 / 20 50 30 50 GIF 075 093 075 094 / 30 50 30 50 SRQ 076 091 074 091 / 20 40 20 40 BKV 072 092 071 092 / 20 50 20 50 && .TBW WATCHES/WARNINGS/ADVISORIES...NONE. && SHORT TERM...JLC LONG TERM...PRC
Hazardous weather outlook, Jul 7, 5:21 AM EDT, 8 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 521 AM EDT WED JUL 7 2004 FLZ039-042-043-048>052-055>057-060>062-065-071400- CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE- LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER- 521 AM EDT WED JUL 7 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: SCATTERED SHOWERS AND THUNDERSTORMS ARE AGAIN EXPECTED TO DEVELOP WITH DAYTIME HEATING ALONG THE WEST COAST SEA BREEZE OVER COASTAL AREAS LATER THIS MORNING INTO EARLY AFTERNOON THEN MOVE INLAND LATER COLLIDING WITH OUTFLOW BOUNDARIES AND THE EAST COAST SEA BREEZE LATE THIS AFTERNOON OVER INTERIOR AND SOUTHERN AREAS...THEN TAPER OFF INTO THE EVENING. WEAK STEERING FLOW ALOFT WILL ALLOW FOR SLOW MOVING STORMS WHICH COULD PRODUCE RAINFALL RATES OF 2 TO 3 INCHES AN HOUR...CAUSING MINOR FLOODING OF POOR DRAINAGE AREAS. FREQUENT TO EXCESSIVE CLOUD TO GROUND LIGHTNING AND GUSTY WINDS OF 30 TO 40 MPH ARE ALSO POSSIBLE WITH TODAYS STORMS. WHEN SKIES DARKEN...MOVE INDOORS. IF THERE IS TIME...UNPLUG APPLIANCES AND ELECTRICAL EQUIPMENT. WAIT UNTIL THE STORM ENDS BEFORE USING THE TELEPHONE OR RUNNING WATER. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR UPDATES. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY: SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ARE EXPECTED EACH DAY. THERE WILL BE A POSSIBILITY OF STRONG STORMS EACH AFTERNOON. STAY TUNED TO THE LATEST FORECASTS FOR ADDITIONAL DETAILS. .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 (LOWER CASE)
In the hours before
Special weather statement, Jul 7, 11:24 AM EDT, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1124 AM EDT WED JUL 7 2004 FLZ050-071600- PINELLAS- 1124 AM EDT WED JUL 7 2004 ...STRONG THUNDERSTORM WILL AFFECT AREAS NEAR SAINT PETERSBURG... A THUNDERSTORM...MOVING EAST AT 5 TO 10 MPH...WILL AFFECT SAINT PETERSBURG AND LEALMAN...UNTIL 1200 PM EDT. GUSTY WINDS UP TO 40 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. 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 7, 10:40 AM EDT | Special Marine Warning | TBW | 35 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2004Every severe thunderstorm warning in 2004
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.