Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 63, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 29, 2004, 5:58 PM EDT for Hernando County, Florida. It was in force for 32 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 29, 2004, 5:58 PM EDT (21:58 UTC)
- Expired
- Jun 29, 2004, 6:30 PM EDT
- In force
- 32 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
County Hernando County, FL
The radar
The Tampa radar (KTBW), 90 km from the middle of the area, began a volume at 21:59 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, 10.0 hours before the alert went out and 90 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
- 857 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1040 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
355 WUUS52 KTBW 292158 SVRTBW FLC053-292230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 557 PM EDT TUE JUN 29 2004 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL HERNANDO COUNTY IN FLORIDA. * UNTIL 630 PM EDT * AT 557 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS...NEAR BROOKSVILLE...MOVING NORTHWEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... BROOKSVILLE BY 555 PM EDT. WEEKI WACHEE BY 630 PM EDT. 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 2842 8235 2859 8228 2869 8254 2847 8262 $$
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 29, 1:00 PM EDT, 4 hours 58 minutes earlier.
Area forecast discussion, Jun 29, 1:00 PM EDT, 4 hours 58 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 100 PM EDT TUE JUN 29 2004 .SHORT TERM (TONIGHT-THU)...EAST COAST SEABREEZE RAPIDLY MOVING OVER THE S FL PENINSULA EARLY THIS AFTERNOON. GOOD CU FIELD DEVELOPING OVER THE REST OF THE AREA. EXPECT PLENTY OF BOUNDARY COLLISIONS LATER THIS AFTERNOON LASTING INTO THIS EVENING. WILL KEEP SCT EVENING POPS GOING WITH HIGHER VALUES ALONG COASTAL LOCATIONS THEN THE ACTIVITY WILL CONTINUE MOVING WESTWARD OFFSHORE. SOME STORMS MAY BE STRONG IN THE MOIST AND UNSTABLE ENVIRONMENT. TEMPS NEAR CLIMO. WED/THU...MODELS HAVE SPED UP TIMING ON TROPICAL FEATURES TO EFFECT THE REGION. DEEP E/SE FLOW TO CONTINUE WITH NARROW AREA OF SUBSIDENCE AHEAD OF TUTT/TROP WAVE WED TO KEEP POPS IN LOW END SCT CATEGORY. WEST COAST SEA BREEZE AGAIN TO HAVE TOUGH TIME AGAINST EASTERLY FLOW SO WILL KEEP A LITTLE HIGH POPS ALONG THE COAST. TEMPS A DEGREE OR TWO ABOVE CLIMO. WITH THE FASTER TIMING OF THE WAVE MAY SEE SOME PRECIP OVERNIGHT WED MAINLY EXTREME S AND SOUTHERN WATERS. WAVE NOW PROGGED TO BE IN EASTERN GULF THU. THIS POSITION WILL KEEP THE AREA IN SE FLOW AND ON FAVORABLE PRECIP SIDE OF TROF AXIS. HAVE KEPT NUMEROUS POPS ALONG COASTAL AREAS WITH LESSER AMOUNT FURTHER INLAND. THIS IS ABOVE GUIDANCE MOS WHICH HAS BEEN ON THE LOW SIDE LATELY. .LONG TERM (THU NIGHT-TUE)...HIGH PRESSURE RIDGE AT ALL LEVELS WILL REMAIN ANCHORED ACROSS THE PENINSULA THROUGH THE PERIOD. SIMPLY PUT...VERY LITTLE CHANGE TO THE CURRENT FCST TRENDS...FAVORING AFTERNOON AND EVENING CONVECTION WITH PERHAPS A BIT LOWER THEN NORMAL COVERAGE (40 PERCENT OR SO) AND SEASONABLE TEMPERATURES. OBVIOUSLY...SUBTLE OSCILLATIONS IN THE LOW LEVEL (SFC-850 MB) HIGH AXIS WILL DETERMINE WHETHER CENTRAL/NATURE COAST GETS RAIN (SE FLOW) OR INTERIOR WEST CENTRAL COUNTIES ARE FAVORED...BUT ITS TOO SOON TO HONE IN ON THE DETAILS. && .MARINE...WEAK HIGH PRESSURE RIDGE OVER THE DEEP SOUTH INTO SAT. TROPICAL WAVE TO MOVE THRU SOUTHERN WATERS THU WITH SLIGHTLY TIGHTER GRADIENT HAVE INTRODUCED 10-15KT WINDS AND 2-3 FT SEAS ON SOUTHERN 2/3 WATERS THU WITH MORE PRECIP COVERAGE. WINDS AND SEAS TO DROP FRI INTO THE WEEKEND. && .FIRE WEATHER...RH TO REMAIN ABOVE CRITICAL LEVELS NO HIGHLIGHTS. && .PRELIMINARY POINT TEMPS/POPS... TPA 75 92 75 90/ 40 40 30 60 FMY 73 93 73 91/ 40 40 30 60 GIF 73 93 74 92/ 30 40 20 50 SRQ 73 91 73 89/ 40 40 30 60 BKV 71 92 71 91/ 40 40 30 60 && .TBW WATCHES/WARNINGS/ADVISORIES...NONE. && SHORT TERM...RD LONG TERM....BG
Hazardous weather outlook, Jun 29, 4:56 AM EDT, 13 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 456 AM EDT TUE JUN 29 2004 FLZ039-042-043-048>052-055>057-060>062-065-291400- CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE- LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER- 456 AM EDT TUE JUN 29 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL FORM ALONG THE WEST COAST SEA BREEZE STARTING AROUND MID AFTERNOON. OUTFLOW FROM THESE STORMS WILL COLLIDE WITH BOUNDARIES COMING IN FROM THE EAST COAST TO PRODUCE MORE SHOWERS AND THUNDERSTORMS LATER IN THE AFTERNOON AND EVENING. EXPECT THE BEST AREAL COVERAGE OF STORMS FROM THE COAST TO JUST EAST OF THE I-75 CORRIDOR. INITIAL MOTION FOR SHOWERS ALONG THE WEST COAST SEA BREEZE WILL BE SLOW...ALLOWING FOR RAINFALL TOTALS UP TO 2 TO 4 INCHES IN SOME LOCATIONS. BY THE EVENING HOURS THE STORMS WILL TEND TO MOVE TOWARD THE WEST AND OUT INTO THE GULF. SOME THUNDERSTORMS COULD BECOME STRONG LATER IN THE AFTERNOON AND EARLY EVENING. BESIDES THE RAINFALL TOTALS...THE MAIN THREATS ARE GUSTY WINDS OF 30 TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING... AND POSSIBLY SMALL HAIL. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR UPDATES. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY: SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THE WEEK...THOUGH COVERAGE IS EXPECTED TO BE LESS ON WEDNESDAY AHEAD OF A TROPICAL WAVE MOVING IN FROM THE ATLANTIC. HEAT INDICES ARE EXPECTED TO TOP OUT AROUND 100 TO 105 DEGREES ON WEDNESDAY BECAUSE OF THE SMALLER RAIN CHANCES. .SPOTTER CALL TO ACTION STATEMENT... SPOTTERS SHOULD BE PREPARED TO SELF ACTIVATE TODAY WHENEVER THE WEATHER CONDITIONS BECOME THREATENING. && FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT HTTP://WWW.SRH.NOAA.GOV/TBW (LOWER CASE) RJS
In the hours before
Special weather statement, Jun 29, 3:20 PM EDT, 2 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 320 PM EDT TUE JUN 29 2004 FLZ056-057-292000- HARDEE-HIGHLANDS- 320 PM EDT TUE JUN 29 2004 ...STRONG THUNDERSTORMS WILL AFFECT WESTERN SEBRING... A THUNDERSTORM...MOVING WEST AT 10 MPH...WILL AFFECT SEBRING AND AVON PARK...AS WELL AS EASTERN HARDEE COUNTY...UNTIL 400 PM EDT. GUSTY WINDS UP TO 45 MPH WILL OCCUR. 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 EXPECTED. 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. COLSON
Special weather statement, Jun 29, 3:25 PM EDT, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 325 PM EDT TUE JUN 29 2004 FLZ049>052-055-056-060-292130- HARDEE-HILLSBOROUGH-MANATEE-PASCO-PINELLAS-POLK-SARASOTA- 325 PM EDT TUE JUN 29 2004 ...STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF WEST CENTRAL FLORIDA... A LINE OF THUNDERSTORMS...MOVING NORTHWEST AT 10 MPH...WILL COLLIDE WITH THE GULF COAST SEA BREEZE BOUNDARY THROUGH 530 PM. THE STORMS ARE EXPECTED IN SARASOTA BY 4 PM...BRADENTON BY 420 PM...LAKELAND BY 430 PM...AND BRANDON BY 430 TO 5 PM. THE STORMS WILL CONTINUE INTO TAMPA AND SAINT PETERSBURG BETWEEN 5 AND 530 PM. THE STRONGEST STORMS WILL CONTAIN 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 EXPECTED.
Local storm report, Jun 29, 4:16 PM EDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
416 PM EDT TUE JUN 29 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0750 PM TSTM WND DMG TAMPA 27.96N 82.48W
06/28/2004 HILLSBOROUGH FL BROADCAST MEDIA
43 LARGE TREES DOWN AT ROGERS PARK GOLF COURSE.REPORT
FORWARDED BY NEWS CHANNEL WFLA.
&&
JSSpecial weather statement, Jun 29, 4:29 PM EDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 429 PM EDT TUE JUN 29 2004 FLZ039-292115- LEVY- 429 PM EDT TUE JUN 29 2004 THUNDERSTORMS...MOVING NORTHWEST AT 10 MPH...WILL AFFECT RURAL AREAS NEAR DUNNELLON AND LEBANON...UNTIL 515 PM EDT. GUSTY WINDS 40 TO 50 MPH MAY CAUSE MINOR DAMAGE TO TREE LIMBS AND WIRES. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS.
Special weather statement, Jun 29, 5:11 PM EDT, 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 511 PM EDT TUE JUN 29 2004 FLZ049>051-292215- HILLSBOROUGH-PASCO-PINELLAS- 511 PM EDT TUE JUN 29 2004 ...STRONG THUNDERSTORMS WILL AFFECT THE TAMPA BAY AREA... A LINE OF THUNDERSTORMS...MOVING NORTHWEST AT 15 MPH...WILL AFFECT WESLEY CHAPEL...TEMPLE TERRACE...TAMPA AND SAINT PETERSBURG...UNTIL 615 PM EDT. GUSTY WINDS UP TO 55 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.
Special weather statement, Jun 29, 5:52 PM EDT, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 552 PM EDT TUE JUN 29 2004 FLZ048-292230- HERNANDO- 552 PM EDT TUE JUN 29 2004 THUNDERSTORMS MOVING NORTHWEST AT 10 MPH...WILL AFFECT AREAS NEAR BROOKSVILLE... AND THE HERNANDO COUNTY AIRPORT...THEN MOVE TO NEAR SPRING HILL TO ROYAL HIGHLANDS BY 630 PM EDT. GUSTY WINDS UP TO 40 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL.
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 8:25 PM EDT | Special Marine Warning | TBW | 65 min | |
| Jun 29, 3:44 PM EDT | Severe Thunderstorm Warning | TBW | Hardee, Polk | 31 min |
| Jun 29, 4:12 PM EDT | Special Marine Warning | TBW | 93 min | |
| Jun 29, 4:16 PM EDT | Severe Thunderstorm Warning | TBW | Manatee | 29 min |
| Jun 29, 5:14 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough, Pinellas | 46 min |
| Jun 29, 5:42 PM EDT | Special Marine Warning | TBW | 48 min | |
| Jun 29, 6:24 PM EDT | Special Marine Warning | TBW | 66 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.