Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 47, NWS Tallahassee, FL

September 30, 1998Lafayette County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 30, 1998, 1:10 AM EDT for Lafayette County, Florida. It was in force for 20 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
Sep 30, 1998, 1:10 AM EDT (05:10 UTC)
Expired
Sep 30, 1998, 1:30 AM EDT
In force
20 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Lafayette County, FL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 29, 7:00 PM EDTTornado WatchSPC10 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 5.2 hours before the alert went out and 117 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, Tallahassee Rgnl, FL at 00:00Z on 1998-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 1998-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
144 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.

844 
WFUS1 KTLH 300511 RRA
TORTLH
FLC067-300530-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
110 AM EDT WED SEP 30 1998

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  LAFAYETTE COUNTY IN NORTHERN FLORIDA

* UNTIL 130 AM EDT

* AT 109 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A POSSIBLE TORNADO NEAR MAYO AND MOVING NORTH AT 35 MPH.

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT WHEN THEY ARE DIFFICULT
TO RECOGNIZE. SEEK REFUGE IN A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR.

IF YOU ARE IN THE PATH OF THIS TORNADO...EVACUATE YOUR MOBILE HOME
FOR A REINFORCED SHELTER.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 6:54 AM EDTTornado WarningTAEDixie21 min

Nearby

Tornado Warnings in Florida, 1998Every tornado warning in 1998Tornadoes in 1998

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.