Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 36, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 9, 2004, 5:41 PM EDT for Polk County, Florida. It was in force for 34 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
- Jun 9, 2004, 5:41 PM EDT (21:41 UTC)
- Expired
- Jun 9, 2004, 6:15 PM EDT
- In force
- 34 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
County Polk County, FL
The radar
The Tampa radar (KTBW), 65 km from the middle of the area, began a volume at 21:41 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, 9.7 hours before the alert went out and 66 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
- 517 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 931 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
757 WUUS52 KTBW 092141 SVRTBW FLC105-092215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 541 PM EDT WED JUN 9 2004 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN POLK COUNTY IN FLORIDA. * UNTIL 615 PM EDT * AT 541 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...OVER AUBURNDALE...MOVING NORTHWEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... AUBURNDALE. GIBSONIA. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF PENNIES OR LARGER. MOVE TO A PLACE OF SAFETY. QUARTER SIZE HAIL IS LIKELY. MOVE INDOORS IMMEDIATELY. && LAT...LON 2801 8189 2811 8174 2828 8202 2816 8207 $$
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 9, 1:10 PM EDT, 4 hours 31 minutes earlier.
Area forecast discussion, Jun 9, 1:10 PM EDT, 4 hours 31 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 110 PM EDT WED JUN 9 2004 .SHORT TERM (TONIGHT-FRI)... VERY LITTLE CHANGE WAS MADE TO THE CURRENT FORECAST THROUGH FRI. DEEP LAYER RIDGE AXIS NORTH OF THE AREA TONIGHT...WILL BEGIN SHIFTING SOUTHWARD THURS...THEN LOCATED OVER THE CENT FA BY FRI. THIS WILL ALLOW LOW LEVEL WINDS TO TRANSITION TO SSE THURS...THEN SSW ON FRI...WHICH WILL SHIFT FOCUS OF CONVECTION PROGRESSIVELY INLAND BY FRI. FOR THE REST OF TODAY...STILL EXPECT CONVECTIVE COVERAGE TO CONTINUE INCREASING...BUT GIVEN THE HIGH PWS AND STRONG INSTABILITY WITH LACK OF CAP...IT COULD BE THAT CHCS FOR STRONG/SVR CONVECTION WILL BE LIMITED VS YESTERDAY. HAVE CONTINUED 40-50% POPS FOR THURS AND FRI AFTN/EARLY EVENINGS. GIVEN HIGHER POPS AND CLOUD COVER...MAX TEMPS MAY BE SLIGHTLY BELOW NORMAL... SIMILAR TO GUIDANCE VALUES. .LONG TERM (FRI NGT-WED)...LONG RANGE MODELS STILL HAVING TROUBLE RESOLVING DETAILS...EVEN AS EARLY AS SATURDAY. GFS SUGGESTS HEIGHTS WILL RISE OVER THE PENINSULA SATURDAY AND YET THE SURFACE RIDGE AXIS SLIPS EVEN FARTHER TO THE SOUTH. IF THERE IS ANY TREND THAT IS FAIRLY CONSISTENT IN THE MODELS...ITS THE SOUTHWARD DISPLACEMENT OF THIS RIDGE. BY WEDNESDAY...A STRONGER SURFACE RIDGE BUILDS IN FROM THE EAST AND SHOULD ALLOW THE RIDGE AXIS TO REBUILD OVER CENTRAL OR NORTHERN FLORIDA. AT THE SAME TIME...A DEEPER UPPER MOVES INTO THE CENTRAL U.S. WITH AN UPPER-LEVEL LOW CUTTING OFF OVER THE WESTERN GULF. I REDUCED AFTERNOON POPS TO JUST 20 PERCENT OVER THE GULF EACH DAY IN WESTERLY FLOW AND ADDED ISOLATED THUNDER FOR ALL OF THE COASTAL WATERS EACH NIGHT FROM SUNDAY ON THROUGH WEDNESDAY WITH THE WESTERLY FLOW. IN SHORT...AFTERNOON AND EVENING THUNDERSTORMS WILL OCCUR EARLIEST ALONG COASTAL AREAS WHERE PRE-EXISTING CONVECTION MOVES ONSHORE... THEN BEST COVERAGE WILL BE INLAND WITH MORE RAPID PROGRESSION OF AFTERNOON SEA BREEZE. && .MARINE...NO BIG CHANGES OR CONCERNS THROUGH THE PERIOD. AS FLOW BECOMES WESTERLY...ESPECIALLY BY FRI AND SAT...EXPECT BEST CHANCES FOR SHOWERS/TSTMS WILL BE IN THE MORNING AND EARLY AFTN. && .FIRE WEATHER...NO HIGHLIGHTS. && PRELIMINARY POINT TEMPS/POPS... TPA 074 088 074 089 / 40 50 20 40 FMY 072 089 073 090 / 40 50 20 40 GIF 072 090 072 091 / 20 60 40 50 SRQ 073 087 074 088 / 40 40 20 40 BKV 069 089 070 090 / 40 50 20 40 && .TBW WATCHES/WARNINGS/ADVISORIES...NONE. && SHORT TERM...MORALES LONG TERM...JILLSON
Hazardous weather outlook, Jun 9, 5:30 AM EDT, 12 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 530 AM EDT WED JUN 9 2004 FLZ039-042-043-048>052-055>057-060>062-065-091430- CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE- LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER- 530 AM EDT WED JUN 9 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: ...A FEW STRONG TO SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... CONDITIONS SIMILAR TO TUESDAY WILL OCCUR AGAIN TODAY WITH A MOIST SOUTHEAST FLOW...COMBINING WITH THE SEA BREEZES AND OUTFLOW BOUNDARIES...TO CAUSE NUMEROUS SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EARLY EVENING. THE FIRST STORMS ARE EXPECTED TO MOVE NORTHWEST INTO PORTIONS OF HIGHLANDS AND POLK COUNTIES BY EARLY AFTERNOON WITH A FEW OTHER STORMS POPPING UP ALONG THE WEST COAST SEA BREEZE...WHICH IS EXPECTED TO MOVE INLAND TO NEAR THE INTERSTATE 75 CORRIDOR. THE STORMS ARE EXPECTED TO CONSOLIDATE ALONG THE SEA BREEZE FIRST IN SOUTHWEST FLORIDA AROUND FORT MYERS AND PUNTA GORDA DURING THE MID AFTERNOON...AND THEN SPREAD NORTHWARD INTO THE TAMPA BAY AREA AND NATURE COAST BY LATE AFTERNOON AND EARLY EVENING. THE GREATEST THREAT FOR SEVERE WEATHER TODAY WILL ONCE AGAIN BE PRIMARILY ALONG THE COASTAL COUNTIES FROM MID AFTERNOON INTO THE EVENING. THE MAIN THREATS FROM TODAYS STORMS WILL BE DAMAGING WINDS...HAIL... AND LOCALLY HEAVY RAINFALL THAT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AND LOW LYING AREAS. ALSO...BECAUSE BOUNDARIES WILL BE NUMEROUS...THERE IS A VERY LOW THREAT FOR A SMALL BRIEF TORNADO OR WATERSPOUT. 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 LATER STATEMENTS AND POSSIBLE WARNINGS TODAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY: ON THURSDAY...A MORE SOUTHERLY FLOW WILL SET UP ACROSS THE REGION WITH SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS. FOR FRIDAY THROUGH TUESDAY...THE FLOW WILL SHIFT TO A SOUTH TO SOUTHWEST DIRECTION AND THIS WILL FAVOR SHOWERS AND THUNDERSTORMS OVER INLAND AREAS EACH AFTERNOON AND EVENING. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON. && FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT HTTP://WWW.SRH.NOAA.GOV/TBW (LOWER CASE) PRC
In the hours before
Special weather statement, Jun 9, 3:47 PM EDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 347 PM EDT WED JUN 9 2004 FLZ060-092030- SARASOTA- 347 PM EDT WED JUN 9 2004 ...STRONG THUNDERSTORMS WILL AFFECT MYAKKA RIVER STATE PARK... A THUNDERSTORM...MOVING NORTHWEST AT 5 MPH...WILL AFFECT WARM MINERAL SPRINGS AND MYAKKA RIVER STATE PARK...UNTIL 430 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.
Special weather statement, Jun 9, 3:55 PM EDT, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 355 PM EDT WED JUN 9 2004 FLZ050>052-055-056-060-092115- HARDEE-HILLSBOROUGH-MANATEE-PINELLAS-POLK-SARASOTA- 355 PM EDT WED JUN 9 2004 ...STRONG THUNDERSTORMS WILL AFFECT WEST CENTRAL FLORIDA THIS AFTERNOON... A LINE OF THUNDERSTORMS...MOVING NORTHWEST AT 20 MPH...WILL AFFECT ONA...MYAKKA CITY...MYAKKA HEAD AND PARRISH...UNTIL 515 PM EDT. ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP IN THE TAMPA BAY AREA BETWEEN 5 AN 6 PM. THE LARGEST THREAT WITH THESE THUNDERSTORMS WILL BE HEAVY RAIN IN EXCESS OF 3 INCHES IN A FEW SPOTS CAUSING DRASTICALLY REDUCED VISIBILITY AND PONDING OF WATER ON ROADWAYS. FREQUENT TO EXCESSIVE CLOUD TO GROUND LIGHTNING IS ALSO EXPECTED IF OUTSIDE WHEN A STORM APPROACHES...HEAD FOR COVER. IF YOU CANNOT MAKE COVER SAFELY...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. IF INDOORS...REFRAIN FROM USING ELECTRICAL APPLIANCES.
Special weather statement, Jun 9, 4:28 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 428 PM EDT WED JUN 9 2004 FLZ055-092115- MANATEE- 428 PM EDT WED JUN 9 2004 ...STRONG THUNDERSTORMS WILL AFFECT LAKEWOOD RANCH... A STRONG THUNDERSTORM...MOVING NORTHWEST AT 5 MPH...WILL AFFECT CENTRAL MANATEE COUNTY...UNTIL 515 PM EDT. GUSTY WINDS UP TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. SOME DAMAGE TO TREE LIMBS AND WIRES IS POSSIBLE. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. IF CAUGHT OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. THIS STORM WILL PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL.
Special weather statement, Jun 9, 4:58 PM EDT, 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 458 PM EDT WED JUN 9 2004 FLZ055-092115- MANATEE- 458 PM EDT WED JUN 9 2004 ...FUNNEL CLOUDS ARE POSSIBLE IN MANATEE COUNTY... AT 458 PM EDT...LAW ENFORCEMENT OFFICIALS REPORTED A FUNNEL CLOUD IN BRADENTON. DOPPLER RADAR SHOWED THE STORM MOVING NORTHWEST AT 15 MPH. FUNNEL CLOUDS CAN BECOME BRIEF...SMALL...BUT DANGEROUS TORNADOES. MOVE INDOORS IMMEDIATELY...AND STAY AWAY FROM WINDOWS. LAT...LON 2737 8233 2751 8221 2763 8241 2748 8256
Special weather statement, Jun 9, 5:06 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 506 PM EDT WED JUN 9 2004 FLZ051-092145- HILLSBOROUGH- 506 PM EDT WED JUN 9 2004 ...STRONG THUNDERSTORMS WILL AFFECT RUSKIN... A LINE OF THUNDERSTORMS...MOVING NORTHWEST AT 10 MPH...WILL AFFECT WIMAUMA...SUN CITY CENTER...RUSKIN AND APOLLO BEACH...UNTIL 545 PM EDT. GUSTY WINDS UP TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. SOME DAMAGE TO TREE LIMBS AND WIRES IS POSSIBLE. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. IF CAUGHT OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. THIS STORM WILL PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL.
Special weather statement, Jun 9, 5:38 PM EDT, 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 538 PM EDT WED JUN 9 2004 FLZ052-092230- POLK- 538 PM EDT WED JUN 9 2004 ...STRONG THUNDERSTORMS WILL AFFECT LAKELAND... A THUNDERSTORM...MOVING NORTHWEST AT 10 MPH...WILL AFFECT LAKELAND HIGHLANDS...CRYSTAL LAKE...AUBURNDALE AND LAKELAND...UNTIL 630 PM EDT. GUSTY WINDS UP TO 40 MPH WILL OCCUR. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. IF CAUGHT OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS.
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 3:06 PM EDT | Severe Thunderstorm Warning | TBW | Lee | 24 min |
| Jun 9, 3:24 PM EDT | Special Marine Warning | TBW | 66 min | |
| Jun 9, 6:27 PM EDT | Special Marine Warning | TBW | 48 min | |
| Jun 9, 6:50 PM EDT | Severe Thunderstorm Warning | TBW | Pasco | 40 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.