Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 75, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 11, 2004, 5:19 PM EDT for Charlotte 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
- Jul 11, 2004, 5:19 PM EDT (21:19 UTC)
- Expired
- Jul 11, 2004, 6:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
County Charlotte County, FL
The radar
The Tampa radar (KTBW), 90 km from the middle of the area, began a volume at 21:21 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 |
|---|---|---|---|
| Jul 11, 5:42 PM EDT | HAIL 1 | 1 E Port Charlotte, FL | QARTER SIZE HAIL REPORTED JUST NORTH OF THE PEACE RIVER AND CHARLOTTE HARBOR IN CHARLOTTE COUNTY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 23 minutes after it went out.
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, 9.3 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
- 969 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1151 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 56 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 112119 SVRTBW FLC015-112200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 519 PM EDT SUN JUL 11 2004 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL CHARLOTTE COUNTY IN FLORIDA. * UNTIL 600 PM EDT * AT 519 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...OVER PUNTA GORDA. THE STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL AFFECT... CHARLOTTE HARBOR. CLEVELAND. 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 2702 8213 2687 8214 2686 8189 2702 8194 $$
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 11, 1:35 PM EDT, 3 hours 44 minutes earlier.
Area forecast discussion, Jul 11, 1:35 PM EDT, 3 hours 44 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 135 PM EDT SUN JUL 11 2004 .SHORT TERM...(TONIGHT THROUGH TUE NIGHT)...A TUTT LIKE FEATURE TRACKS WESTWARD ACROSS CUBA AS A H5 CENTER MOVES ALONG THE GULF COAST INTO THE SOUTHERN PLAINS...IN RESPONSE TO AN UPPER TROUGH FORMING ALONG THE EASTERN SEA BOARD. THESE FEATURES WILL KEEP A MOIST/ PRECIPITABLE WATER 1.8-2.2 IN/ NORTHERLY...BUT BECOMING MORE EASTERLY...MID AND UPPER FLOW THROUGH THE PERIOD. A SURFACE RIDGE WILL SHIFT FROM CENTRAL TO SOUTH FL TONIGHT AND THEN WEAKEN SOME OVER SOUTH FL OR THE STRAITS THROUGH TUE AS A SURFACE BUILDS OVER THE WESTERN GULF...PROVIDING A GENERALLY WEST TO SOUTHWEST LOW LEVEL FLOW ACROSS THE CWFA. GIVEN ALL THIS...WILL KEEP POPS SCATTERED IN THE RANGE OF 40 TO 50 % WITH THE HIGHEST IN THE AFTERNOONS ACROSS THE INTERIOR. HOWEVER...WILL GRADUALLY SHIFT THE BEGINNING TIME FROM AFTERNOON TO LATE MORNING DURING THE NEXT COUPLE OF DAYS AS THE WEST-SOUTHWEST FLOW BUILDS IN. .LONG TERM (TUE NGT-SUN)...MODELS CONTINUE TO DEPICT DEVELOPING TROUGH OVER EASTERN U.S. THROUGH THE PERIOD WITH SERIES OF SHORT WAVES MOVING THROUGH IT. ASSOCIATED SURFACE FRONT EXPECTED TO MOVE SLOWLY SOUTH REACHING NORTH FLORIDA THURSDAY AND THEN BECOMING NEARLY STATIONARY INTO NEXT WEEKEND. THIS WILL SETUP A DEEP WEST SOUTHWEST FLOW OF MOIST AIR ACROSS THE REGION AND WILL LIKELY SEE SOME DECENT RAINFALL ACROSS SOME PORTION OF THE FORECAST AREA LATE IN THE WEEK. EXACT LOCATION AND TIMING REMAINS UNCERTAIN...BUT APPEARS THAT BEST CHANCES FOR HEAVY RAIN WILL OCCUR THURSDAY NIGHT INTO SATURDAY. HOWEVER...STILL A FEW DAYS AWAY SO WILL CONTINUE WITH SCATTERED POPS AT THIS TIME. MAXIMUM TEMPERATURES EXPECTED TO BE NEAR NORMAL THROUGH THE PERIOD WITH MINIMUMS SLIGHTLY ABOVE NORMAL THANKS TO WINDS OFF GULF OF MEXICO. && .MARINE...OTHER THAN THUNDERSTORMS NO PROBLEMS AS SOME WHAT VARIABLE WINDS BECOME WEST AND SOUTHWEST THROUGH THE PERIOD AT 10KTS OR LESS. && .FIRE WEATHER...NO HIGHLIGHTS. && .PRELIMINARY NUMBERS... TPA 77 89 77 89 / 30 50 30 50 FMY 74 90 74 91 / 30 50 30 50 GIF 75 92 75 92 / 20 50 30 50 SRQ 75 89 75 89 / 30 40 20 40 BKV 73 90 73 90 / 30 50 30 50 && .TBW WATCHES/WARNINGS/ADVISORIES...NONE. && SHORT TERM RKR LONG TERM PRC
Hazardous weather outlook, Jul 11, 5:32 AM EDT, 11 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 532 AM EDT SUN JUL 11 2004 FLZ039-042-043-048>052-055>057-060>062-065-111600- CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE- LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER- 532 AM EDT SUN JUL 11 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: WIDESPREAD THUNDERSTORMS ARE EXPECTED ACROSS THE AREA LATE THIS MORNING THROUGH THIS EVENING. DAMAGING WIND WILL BE THE MAIN THREAT. TREES...POWER LINES...AND POORLY CONSTRUCTED BUILDINGS WILL BE MOST AT RISK. THE STORMS WILL MOVE SLOWLY SO LOCALLY VERY HEAVY RAIN IS POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR POSSIBLE WATCHES OR WARNINGS. DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY: SHOWERS AND THUNDERSTORMS CAN BE EXPECTED EVERY AFTERNOON THROUGH THE PERIOD. SOME MAY BECOME STRONG. SPOTTER ACTIVATION IS NOT EXPECTED.
In the hours before
Local storm report, Jul 11, 2:10 PM EDT, 3 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
210 PM EDT SUN JUL 11 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0700 PM TSTM WND DMG 2 W SANIBEL 26.44N 82.13W
07/10/2004 LEE FL PARK/FOREST SRVC
TWO LARGE TREES DOWN WITHIN DING DARLING NATIONAL
WILDLIFE REFUGE.
0700 PM HAIL 2 W SANIBEL 26.44N 82.13W
07/10/2004 0.75 INCH LEE FL PARK/FOREST SRVC
PENNY SIZE HAIL REPORTED WITHIN DING DARLING NATIONAL
WILDLIFE REFUGE.
&&
RFMSpecial weather statement, Jul 11, 3:45 PM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 345 PM EDT SUN JUL 11 2004 FLZ051-112030- HILLSBOROUGH- 345 PM EDT SUN JUL 11 2004 ...STRONG THUNDERSTORMS WILL AFFECT CENTRAL HILLSBOROUGH COUNTY... ...THESE STORMS ARE DRIFTING SOUTH AT 5 MPH AND WILL AFFECT PALM RIVER...CLAIR MEL...AND GIBSONTON...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 REDUCE VISIBILITY TO NEAR ZERO AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL. SHARP
Special weather statement, Jul 11, 4:14 PM EDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 414 PM EDT SUN JUL 11 2004 FLZ055-112100- MANATEE- 414 PM EDT SUN JUL 11 2004 ...STRONG THUNDERSTORMS WILL AFFECT NORTHEAST SARASOTA AND CENTRAL MANATEE COUNTIES... ...THESE THUNDERSTORMS ARE MOVING EAST AT 10 MPH...AND WILL AFFECT AREAS WEST OF MYAKKA CITY...UNTIL 500 PM EDT. GUSTY WINDS 40 TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. MINOR DAMAGE TO TREE LIMBS AND WIRES IS POSSIBLE. THIS STORM WILL PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL. SHARP
Special weather statement, Jul 11, 4:18 PM EDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 418 PM EDT SUN JUL 11 2004 FLZ052-112100- POLK- 418 PM EDT SUN JUL 11 2004 ...STRONG WINDS WILL AFFECT CENTRAL POLK COUNTY... ...GUSTY WINDS 40 TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND IN ASSOCIATION WITH THUNDERSTORMS MOVING SOUTH AT 15 MPH OVER CENTRAL POLK COUNTY. THESE THUNDERSTORMS WILL AFFECT LAKE ALFRED...HAINES CITY...WINTER HAVEN AND INWOOD...UNTIL 500 PM EDT. MINOR 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 1 TO 2 INCHES PER HOUR WILL OCCUR. MOTORISTS CAN EXPECT PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. SHARP
Special weather statement, Jul 11, 4:54 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 454 PM EDT SUN JUL 11 2004 FLZ039-112145- LEVY- 454 PM EDT SUN JUL 11 2004 ...STRONG THUNDERSTORMS WILL AFFECT EASTERN LEVY COUNTY... ...THESE STORMS ARE MOVING SOUTH AT 5 MPH...AND WILL AFFECT RURAL EASTERN LEVY COUNTY NEAR MORRISTON...UNTIL 545 PM EDT. GUSTY WINDS 40 TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. MINOR 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. SHARP
Special weather statement, Jul 11, 4:58 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 458 PM EDT SUN JUL 11 2004 FLZ057-112145- HIGHLANDS- 458 PM EDT SUN JUL 11 2004 ...STRONG THUNDERSTORMS WILL AFFECT SOUTHERN HIGHLANDS COUNTY... ...THESE STORMS ARE MOVING SOUTHWEST AT 10 MPH...AND WILL AFFECT VENUS...UNTIL 545 PM EDT. GUSTY WINDS 40 TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. MINOR 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. 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. SHARP
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 4:12 PM EDT | Special Marine Warning | TBW | 33 min | |
| Jul 11, 4:30 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 45 min |
| Jul 11, 4:34 PM EDT | Severe Thunderstorm Warning | TBW | Manatee | 41 min |
| Jul 11, 5:01 PM EDT | Severe Thunderstorm Warning | TBW | Sarasota | 29 min |
| Jul 11, 5:15 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 30 min |
| Jul 11, 5:18 PM EDT | Special Marine Warning | TBW | 27 min | |
| Jul 11, 6:16 PM EDT | Severe Thunderstorm Warning | TBW | Lee | 44 min |
| Jul 11, 6:40 PM EDT | Special Marine Warning | TBW | 50 min | |
| Jul 11, 7:20 PM EDT | Special Marine Warning | TBW | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.