Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 1, NWS Tampa Bay, FL

February 14, 2000Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Feb 14, 2000, 7:59 PM EST for Polk 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: Feb 14, 2000, 7:59 PM EST (00:59 UTC)
Expired: Feb 14, 2000, 8:30 PM EST
In force: 31 min
Issued by: NWS Tampa Bay, FL
Area: Whole counties

County Polk County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 1.0 hours before the alert went out and 74 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1196 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 451 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTBW 150100
SVRTBW
FLC105-150130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RUSKIN FL
759 PM EST MON FEB 14 2000

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN POLK COUNTY IN CENTRAL FLORIDA

* UNTIL 830 PM EST

* AT 8:00 PM...A SEVERE THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER
  SERVICE DOPPLER RADAR ABOUT 2 MILES WEST OF BRADLEY JUNCTION...MOVING
  EAST AT 25 MPH.


* SOME LOCATIONS AFFECTED...
  SOUTH OF BARTOW BY 810 PM
  FORT MEADE BY 810 PM

THIS STORM MAY CONTAIN HAIL UP TO THREE QUARTER INCH DIAMETER...AND
WIND GUSTS IN EXCESS OF 50 MPH.  A SMALL TORNADO IS ALSO POSSIBLE.

MOVE INDPOORS TO A STURDY BUILDING IF THE STORM APPROACHES YOUR
LOCATION. MOBILE HOMES ARE NOT SAFE.


$$
BSG

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 Feb 14, 2:00 PM EST, 5 hours 59 minutes earlier.

Area forecast discussion, Feb 14, 2:00 PM EST, 5 hours 59 minutes before

WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
200 PM EST MON FEB 14 2000

CURRENTLY: CELLS HANGING TOUGH OFFSHORE. SEVERAL CELLS WITH WEAK
COUPLETS...BUT NOTHING TO GET EXCITED ABOUT YET.

FORECAST: 12Z MODELS...INCLUDING AVN WHICH HAS HANDLED THIS SYSTEM
THE BEST...ALL STILL SHOW SOME LIFT OVER THE SOUTHEASTERN PART OF
THE FA AFTER 00Z AS NEXT VORT MAX MOVES ACROSS THE GULF. ALL ACTIVITY
SHOULD BE THROUGH BY 06Z...SO ANY RAIN I HOLD ON TO SHOULD BE GONE
AFTER MIDNIGHT.

WINDS WILL SHIFT TO THE NORTH BEHIND BOUNDARY OVERNIGHT...BUT QUICKLY
START VEERING TO NORTHEAST TUESDAY AND EAST TO SOUTHEAST ON
WEDNESDAY. A BIT COOLER BEHIND THE BOUNDARY...BUT STILL ABOVE NORMAL
AS AIR MASS CHANGE WILL BE MINIMAL.

LATE NIGHT AND EARLY MORNING FOG THREAT TONIGHT...ESPECIALLY IN AREAS
WHERE IT RAINED. THERE WILL PROBABLY BE ENOUGH MIXING TO AVOID A
LARGE AREA OF DENSE FOG HOWEVER. MORE OF THE SAME TUESDAY NIGHT AND
WEDNESDAY MORNING.

MARINE: WILL PULL BACK TO SCEC FOR THIS EVENING AS WINDS ALL AREAS
BELOW SCA CRITERIA. KEEP IN CONVECTION CENTRAL AND SOUTH FOR THE
EVENING.

EXTENDED: FAIR AND ABOVE NORMAL TEMPERATURES THROUGH THE EXTENDED
PERIOD. NEXT SYSTEM SHOULD PASS FAR ENOUGH NORTH TO LEAVE US
REASONABLY UNTOUCHED.

THANKS FOR COORD MLB.

PRELIM NUMBERS:
TPA 60/77/56/79 77300
FMY 64/82/61/84 77500

.TBW...SMALL CRAFT EXERCISE CAUTION BONITA BEACH TO SUWANNEE RIVER
       EARLY TONIGHT.

ALSHEIMER

Nearby

Severe Thunderstorm Warnings in Florida, 2000 Every severe thunderstorm warning in 2000

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.