Alert archive / Florida / Tornado Warnings in 1999

Tornado Warning 13, NWS Tampa Bay, FL

June 4, 1999Lee County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jun 4, 1999, 7:51 PM EDT for Lee County, Florida. It was in force for 39 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 4, 1999, 7:51 PM EDT (23:51 UTC)
Expired
Jun 4, 1999, 8:30 PM EDT
In force
39 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Lee County, FL

What was reported inside it

TimeReportWhereRemark
Jun 4, 8:10 PM EDTHail 1Ft Myers, FLQuarter sized hail was reported by a Skywarn Spotter in Ft Myers.
Jun 4, 8:13 PM EDTThunderstorm Wind 52Ft Myers, FLA 60 mph wind gust was recorded by NWS ASOS wind equipment at Ft Myers Page Field.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 11.9 hours before the alert went out and 179 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-pSkew-T log-p diagram, Miami, FL at 12:00Z on 1999-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 726 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 1999-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
726 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
-14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTBW 042353
TORTBW
FLC071-050030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
751 PM EDT FRI JUN 4 1999

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  LEE COUNTY IN SOUTHWESTERN FLORIDA

* UNTIL 830 PM EDT

* AT 750 PM...A TORNADO WAS INDICATED BY NATIONAL WEATHER SERVICE
  DOPPLER RADAR NEAR FORT MYERS MOVING SOUTH AT 10 MPH.

THIS IS A DANGEROUS SITUATION. PERSONS IxN THE PATH OF THE STORM
NEED TO TAKE COVER IN A STURDY BUILDING. MOBILE HOMES AND CARS ARE
NOT SAFE.

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 4, 2:37 PM EDTSevere Thunderstorm WarningTBWPasco38 min
Jun 4, 4:12 PM EDTSevere Thunderstorm WarningTBWHillsborough43 min
Jun 4, 4:31 PM EDTSevere Thunderstorm WarningTBWCitrus44 min
Jun 4, 4:31 PM EDTSevere Thunderstorm WarningTBWCitrus24 hr
Jun 4, 5:25 PM EDTSevere Thunderstorm WarningTBWCitrus35 min
Jun 4, 5:45 PM EDTSevere Thunderstorm WarningTBWPolk30 min
Jun 4, 6:30 PM EDTSevere Thunderstorm WarningTBWHighlands40 min
Jun 4, 6:40 PM EDTSevere Thunderstorm WarningTBWCitrus35 min
Jun 4, 7:12 PM EDTTornado WarningTBWHighlands33 min

Nearby

Tornado Warnings in Florida, 1999Every tornado warning in 1999Tornadoes in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.