Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 18, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 4, 2004, 3:04 PM EDT for Hillsborough County, Polk County, Florida. It was in force for 41 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 4, 2004, 3:04 PM EDT (19:04 UTC)
- Expired
- Jun 4, 2004, 3:45 PM EDT
- In force
- 41 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
Counties Hillsborough County, FL, Polk County, FL
The radar
The Tampa radar (KTBW), 51 km from the middle of the area, began a volume at 19:04 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 4, 3:12 PM EDT | HAIL 0.88 | 4 Sw Lakeland Linder Ai, FL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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, 7.1 hours before the alert went out and 51 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
- 754 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 890 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- -20 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 041904 SVRTBW FLC057-105-041945- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 302 PM EDT FRI JUN 4 2004 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN POLK COUNTY IN FLORIDA. EASTERN HILLSBOROUGH COUNTY IN FLORIDA. * UNTIL 345 PM EDT * AT 302 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...6 MILES EAST OF PLANT CITY...MOVING EAST AT 10 TO 15 MPH. ANOTHER SEVERE STORM WAS DEVELOPING NEAR LILLIBRIDGE * THE SEVERE THUNDERSTORM WILL AFFECT... LILLIBRIDGE WILLOW OAK. WINSTON. LAKELAND. LAKELAND HIGHLANDS. CRYSTAL LAKE. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF PENNIES OR LARGER. RAINFALL TO 3 INCHES IN ONE HOUR IS ALSO POSSIBLE...AUSING PONDING OF WATER ON ROADWAYS. MOVE TO A PLACE OF SAFETY. && LAT...LON 2810 8216 2788 8217 2791 8182 2811 8183 $$
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 4, 1:10 PM EDT, 1 hour 54 minutes earlier.
Area forecast discussion, Jun 4, 1:10 PM EDT, 1 hour 54 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 110 PM EDT FRI JUN 4 2004 .SHORT TERM (TONIGHT THRU SUNDAY)...AN UPPER TROUGH WITH WEAK VORT LOBES MOVING THROUGH ITS BASE WILL PERSIST OVER THE SERN U.S. AND FLORIDA THROUGH THE PERIOD. AT THE SURFACE HIGH PRESSURE ACROSS THE SOUTHERN PENINSULA WILL GRADUALLY DRIFT NORTH BY SUNDAY BECOMING ALIGNED SE-NW ACROSS THE N-CENTRAL PENINSULA. COMBINATION OF AMPLE LOW LEVEL MOISTURE...INSTABILITY AND DAILY AFTERNOON SEA BREEZE CIRCULATIONS WILL SUPPORT SCATTERED SHOWERS AND THUNDERSTORMS BOTH DAYS...AND WILL BLANKET THE FORECAST AREA WITH POPS IN THE 40-50% RANGE. LIGHT STEERING FLOW ON SATURDAY WILL AGAIN ALLOW STORMS TO PROPAGATE ALONG THE SEA BREEZE BOUNDARIES WITH SOME LOCALLY HEAVY RAINFALL POSSIBLE. ON SUNDAY STEERING FLOW WILL BECOME SOUTHEASTERLY AS THE SURFACE RIDGE DRIFTS A BIT FURTHER NORTH...WITH BEST COVERAGE OF CONVECTION SETTING UP ALONG COASTAL LOCATIONS DURING THE LATE AFTERNOON AND EARLY EVENING HOURS. INCREASED CLOUD COVER AND HIGHER PRECIP CHANCES WILL KEEP TEMPERATURES NEAR CLIMO-LEVELS THROUGH THE WEEKEND. MAV/MET GUIDANCE IS AGAIN CLOSE...SO WILL USE A BLEND. .LONG TERM (SUN NIGHT-FRI)...UPPER RIDGING TO BUILD OVER THE AREA SUN NIGHT AND BECOME WELL ESTABLISHED BY MID WEEK. SFC RIDGE AXIS MOVES OVER N FL/S GA KEEPING THE AREA IN SE LL FLOW WITH PLENTY OF ATLANTIC MOISTURE IN PLACE TO COMBINE WITH DIURNAL HEATING TO PRODUCE AFTERNOON WEST COAST SEABREEZE CONVECTION THAT WILL LATER COLLIDE WITH EAST COAST SEA BREEZE AND OUT FLOW BOUNDARIES FOR SCATTERED AFTERNOON INTO EVENING SHOWERS AND THUNDERSTORMS. LATEST EXT MODELS TRY TO SPIN UP UPPER AND SFC LOW IN WESTERN GULF LATE IN THE PERIOD AND MOVE IT INTO THE NORTH CENTRAL GULF. SFC GRADIENT WOULD TIGHTEN WITH INCREASING CHANCES FOR PRECIP AHEAD OF SYSTEM. WILL KEEP SCT POPS ATTM AND WAIT TO SEE BETTER MODEL CONTINUITY. TEMPS NEAR NORMAL. && .MARINE...HAVE MADE LITTLE CHANGES TO THE ONGOING FORECAST. A LIGHT SOUTH TO SOUTHWEST WIND FLOW IN THE 5 TO 10 KNOT RANGE CAN BE EXPECTED TONIGHT AND SATURDAY. WINDS WILL BACK TO THE SOUTH AND SOUTHEAST SUNDAY AND INTO EARLY NEXT WEEK AS SURFACE HIGH PRESSURE SETS UP OVER THE NORTH-CENTRAL PENINSULA. NO HIGHLIGHTS EXPECTED AT THIS TIME...BUT HIGHER WIND AND SEAS WILL BE POSSIBLE IN THE VICINITY OF LATE AFTERNOON AND EVENING THUNDERSTORMS EACH DAY. && .FIRE WEATHER...AMPLE LOW LEVEL MOISTURE ALONG WITH GOOD CHANCES FOR SHOWERS AND THUNDERSTORMS WILL KEEP HUMIDITY LEVELS ABOVE CRITICAL VALUES INTO THE WEEKEND WITH NO WATCHES OR RED FLAGS EXPECTED. && .PRELIMINARY POINT TEMPS/POPS... TPA 075 088 074 090/ 20 50 40 50 FMY 072 090 072 091/ 30 50 40 50 GIF 072 090 072 091/ 40 50 40 50 SRQ 072 087 072 089/ 20 50 40 50 BKV 068 090 068 090/ 20 50 30 50 && .TBW WATCHES/WARNINGS/ADVISORIES...NONE. && SHORT TERM...MCMICHAEL LONG TERM....DAVIS
Hazardous weather outlook, Jun 4, 5:00 AM EDT, 10 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 5 AM EDT FRI JUN 4 2004 FLZ039-042-043-048>052-055>057-060>062-065-041500- CHARLOTTE-CITRUS-DESOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE- LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER- 5 AM EDT FRI JUN 4 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: ...ISOLATED STRONG TO SEVERE THUNDERSTORMS POSSIBLE TODAY... THE COMBINATION OF AN UPPER LEVEL DISTURBANCE...AND A MOIST...UNSTABLE ATMOSPHERE...WILL LEAD TO SCATTERED SHOWERS AND THUNDERSTORMS AGAIN THIS AFTERNOON AND EVENING...ESPECIALLY INLAND...AWAY FROM THE GULF COAST. ISOLATED SHOWERS AND THUNDERSTORMS COULD DEVELOP AS EARLY AS THIS MORNING OVER THE EASTERN GULF WATERS...AND IMMEDIATE COASTAL COUNTIES FROM THE TAMPA BAY AREA...NORTHWARD TO CEDAR KEY. BY THIS AFTERNOON...SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BECOME MORE NUMEROUS AS THE WEST COAST SEA BREEZE HELPS TO PUSH THE STORMS EASTWARD TOWARD THE INLAND COUNTIES. SOME STORMS COULD BECOME STRONG OR SEVERE THIS AFTERNOON... ESPECIALLY INLAND. THE MAIN THREATS WITH ANY STRONG TO POSSIBLY SEVERE THUNDERSTORMS WILL BE DAMAGING WIND AND SMALL HAIL. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR POSSIBLE WATCHES OR WARNINGS THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY: SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE AGAIN EXPECTED FOR SATURDAY...ESPECIALLY OVER INLAND LOCATIONS. SOME STORMS COULD BECOME STRONG. BY SUNDAY...LOW LEVEL WINDS ARE EXPECTED TO BECOME SOUTHEASTERLY...AND CONTINUE FROM THE SOUTHEAST THROUGH MUCH OF NEXT WEEK. THE LOW LEVEL SOUTHEAST WINDS WILL SHIFT THE BEST CHANCES FOR SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS TOWARD THE GULF COAST...WHICH WILL ALSO BE WHERE THE HIGHEST THREAT FOR ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL BE EACH DAY. .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)
In the hours before
Special weather statement, Jun 4, 10:22 AM EDT, 4 hours 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1022 AM EDT FRI JUN 4 2004 FLZ039-041515- LEVY- 1022 AM EDT FRI JUN 4 2004 A LINE OF THUNDERSTORMS...MOVING EAST SOUTHEAST AT 10 MPH...WILL AFFECT FANNING SPRINGS...CHIEFLAND...AND BRONSON...UNTIL 1115 AM 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. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. MCMICHAEL
Special weather statement, Jun 4, 11:37 AM EDT, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1137 AM EDT FRI JUN 4 2004 FLZ039-041615- LEVY- 1137 AM EDT FRI JUN 4 2004 STRONG THUNDERSTORMS...MOVING EAST AT 15 MPH...WILL AFFECT BRONSON AND WILLISTON...UNTIL 1215 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. THIS STORM MAY PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. MCMICHAEL
Special weather statement, Jun 4, 1:17 PM EDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 117 PM EDT FRI JUN 4 2004 FLZ055-060-041800- MANATEE-SARASOTA- 117 PM EDT FRI JUN 4 2004 STRONG THUNDERSTORMS DRIFTING EAST AT 5 MPH WILL AFFECT RURAL SOUTHEASTERN MANATEE COUNTY AND RURAL EASTERN SARASOTA COUNTY...UNTIL 200 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. THESE STORMS MAY PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. MCMICHAEL
Special weather statement, Jun 4, 2:18 PM EDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 218 PM EDT FRI JUN 4 2004 FLZ055-041900- MANATEE- 218 PM EDT FRI JUN 4 2004 ...STRONG THUNDERSTORMS WILL AFFECT MYAKKA HEAD... THUNDERSTORMS...MOVING EAST AT 5 MPH...WILL AFFECT MYAKKA HEAD... UNTIL 300 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. HAIL UP TO ONE HALF INCH IN DIAMETER IS POSSIBLE. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL OCCUR. MOTORISTS CAN EXPECT PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. JILLSON
Special weather statement, Jun 4, 2:18 PM EDT, 46 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 218 PM EDT FRI JUN 4 2004 FLZ055-056-041900- MANATEE-HARDEE 218 PM EDT FRI JUN 4 2004 CORRECTED TO INCLUDE WESTERN HARDEE COUTNY ...STRONG THUNDERSTORMS WILL AFFECT MYAKKA HEAD... THUNDERSTORMS...MOVING EAST AT 5 MPH...WILL AFFECT MYAKKA HEAD IN MANATEE COUNTY AND RURAL WESTERN HARDEE COUNTY UNTIL 300 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. HAIL UP TO ONE HALF INCH IN DIAMETER IS POSSIBLE. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL OCCUR. MOTORISTS CAN EXPECT PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. JILLSON
Special weather statement, Jun 4, 2:26 PM EDT, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 226 PM EDT FRI JUN 4 2004 FLZ043-048-041915- HERNANDO-SUMTER- 226 PM EDT FRI JUN 4 2004 ...STRONG THUNDERSTORMS WILL AFFECT RIDGE MANOR... A THUNDERSTORM...MOVING EAST AT 5 MPH...WILL AFFECT RIDGE MANOR AND BUSHNELL...UNTIL 315 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. RAINFALL RATES OF 2 INCHES PER HOUR WILL OCCUR. MOTORISTS CAN EXPECT 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 |
|---|---|---|---|---|
| Jun 4, 1:24 PM EDT | Severe Thunderstorm Warning | TBW | Manatee | 36 min |
| Jun 4, 3:54 PM EDT | Special Marine Warning | TBW | 36 min | |
| Jun 4, 4:20 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 40 min |
| Jun 4, 6:49 PM EDT | Severe Thunderstorm Warning | TBW | Charlotte, Sarasota | 41 min |
| Jun 4, 7:45 PM EDT | Severe Thunderstorm Warning | TBW | Manatee | 30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.