Alert archive / Florida / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 27, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 19, 2002, 12:59 PM EDT for Hernando County, Florida. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 19, 2002, 12:59 PM EDT (16:59 UTC)
- Expired
- Jul 19, 2002, 1:30 PM EDT
- In force
- 31 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Hernando County, FL
The radar
The Tampa radar (KTBW), 95 km from the middle of the area, began a volume at 17:02 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.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 5.0 hours before the alert went out and 95 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
- 2678 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 858 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
207 WUUS52 KTBW 191659 SVRTBW FLC053-191730- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1258 PM EDT FRI JUL 19 2002 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN HERNANDO COUNTY IN FLORIDA. * UNTIL 130 PM EDT. * AT 1258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH SMALL HAIL AND DAMAGING WINDS...OVER WEST CENTRAL HERNANDO COUNTY. THE STORM WAS DRIFTING SLOWLY TO THE NORTH. * THE SEVERE THUNDERSTORM WILL AFFECT... WEEKI WACHEE. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. $$ LAT...LON 2851 8259 2846 8247 2866 8241 2866 8257 33
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 19, 10:07 AM EDT, 2 hours 52 minutes earlier.
Area forecast discussion, Jul 19, 10:07 AM EDT, 2 hours 52 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1007 AM EDT FRI JUL 19 2002 CURRENTLY...WEAK SFC RIDGE AXIS OVER SCENT FL WITH LIGHT LOW LEVEL SW FLOW. SFC TDS STILL UNBEARABLE IN THE UPPER 70S TO NEAR 80... ESPECIALLY NEAR THE COAST. 12Z SOUNDING A LITTLE DRIER THAN YESTERDAY WITH PW AROUND 1.75 INCHES. HOWEVER...VERY UNSTABLE ONCE A PARCEL GETS ABOVE LOW LEVEL INVERSION...WITH MODIFIED CAPES AROUND 6000 J/KG AND LI OF -10. STEERING FLOW LIGHT ENE. ISOLD SHOWERS SRQ SOUTHWARD OVER THE E GULF AND NEAR THE COAST...POSSIBLY SPARKED BY ADDED LIFT FROM WEAK UPPER SHEAR AXIS. ALREADY REPORTED OF A DISSIPATED WATERSPOUT NEAR CHARLOTTE COUNTY COAST. --REST OF TODAY-- LOW LEVEL INVERSION AND SLIGHTLY LOWER PWS MAY MEAN FOR A SLOWER START TO THE CONVECTION...MAINLY OVER THE CENT AND N FA. HOWEVER... ONCE TEMPS REACH THE LOWER 90S...SHOULD GET STORMS TO FORM... POSSIBLY STRONG GIVEN LARGE CAPES. WITH VERY LIGHT STEERING... LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE. UPDATES... GIVEN HIGH SFC TDS COMBINED WITH LOWER TO MID 90S TEMPS WILL YIELD HEAT INDICES AROUND 105. WILL ADD HEADLINE IN CURRENT ZONES...AND MAY ALSO ISSUED UPDATED HWO. WILL ALSO REMOVE POP TIMING OR ADD MAINLY AFTN FOR SW COASTAL AREAS GIVEN CONVECTION ALREADY STARTING. --MARINE-- LITTLE TO NO CHANGES EXPECTED. .TBW...NONE. MORALES
In the hours before
Special weather statement, Jul 19, 10:55 AM EDT, 2 hours 4 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-192000- WEST CENTRAL AND SOUTHWEST FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1055 AM EDT FRI JUL 19 2002 ...AFTERNOON HEAT INDICES AROUND 105 DEGREES... ...ISOLATED STRONG THUNDERSTORMS POSSIBLE... THE COMBINATION OF HOT AFTERNOON TEMPERATURES AND HIGH HUMIDITY WILL PRODUCE MODERATELY HIGH HEAT INDICES OF AROUND 105 DEGREES. IF YOU MUST BE OUTDOORS TODAY...DRINK PLENTY OF NON-ALCOHOLIC FLUIDS... DRESS IN LIGHT WEIGHT AND LIGHT COLORED CLOTHING...AND AVOID PROLONGED STRENUOUS ACTIVITY AND EXPOSURE IN THE DIRECT SUN. IN ADDITION TO THE VERY HOT AND HUMID CONDITIONS...SCATTERED SHOWERS AND THUNDERSTORMS ARE ALSO EXPECTED THIS AFTERNOON. ISOLATED SHOWERS AND THUNDERSTORMS WILL DEVELOP FIRST ALONG THE WEST COAST SEA BREEZE...THEN DEVELOP FARTHER INLAND BY MID TO LATE AFTERNOON. DURING THE LATE AFTERNOON AND EVENING...WEAK EAST TO NORTHEAST FLOW AT THE MID AND UPPER LEVELS OF THE ATMOSPHERE MAY PUSH THUNDERSTORMS SLOWLY BACK TOWARD THE WEST COAST. ISOLATED STRONG THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON WITH GUSTY WINDS OF 30 TO 40 MPH...EXCESSIVE CLOUD TO GROUND LIGHTNING... AND POSSIBLY SMALL HAIL. ALSO...DUE TO THE RELATIVELY SLOW MOTION OF ANY STORMS...LOCALLY HEAVY RAINFALL AMOUNTS OF 2 TO 3 INCHES WILL BE POSSIBLE. FOR MARINE INTEREST...THERE WILL BE THE POTENTIAL FOR WATERSPOUT FORMATION...MAINLY THROUGH EARLY THIS AFTERNOON NEAR THE COAST. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA OUTLETS IN THE EVENT ANY ADDITIONAL STATEMENTS...OR POSSIBLY WARNINGS BECOME NECESSARY. MORALES
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 3:33 PM EDT | Severe Thunderstorm Warning | TBW | Sumter | 27 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2002Every severe thunderstorm warning in 2002
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.