Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 21, NWS Tallahassee, FL

September 28, 1998Walton County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 28, 1998, 7:37 AM CDT for Walton County, Florida. It was in force for 48 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 28, 1998, 7:37 AM CDT (12:37 UTC)
Expired
Sep 28, 1998, 8:25 AM CDT
In force
48 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Walton County, FL

The watch it was issued in

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

IssuedProductOfficeLasted
Sep 28, 1:00 AM CDTTornado WatchSPC12 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.6 hours before the alert went out and 181 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 12:00Z on 1998-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 730 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, Tallahassee Rgnl, FL at 12:00Z on 1998-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.193958Sfc1 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
730 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTLH 281237 RRA
TORTLH
FLC131-281325-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
837 AM EDT MON SEP 28 1998

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  WALTON COUNTY IN NORTHWESTERN FLORIDA

* UNTIL 825 AM CDT (925 AM EDT)

* AT 734 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A DEVELOPING TORNADO 2 MILES SOUTH OF DE FUNIAK SPRINGS MOVING
  NORTH AT 50 MPH.

* DE FUNIAK SPRINGS IS IN THE PATH OF THE TORNADO.


THIS IS A DANGEROUS SITUATION.  ACT QUICKLY.  IF YOU ARE IN
THE PATH OF THIS TORNADO...MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 5:20 AM CDTFlash Flood WarningTAEWalton7 hr
Sep 28, 12:06 PM CDTFlash Flood WarningTAEWalton6 hr
Sep 28, 6:20 PM CDTFlash Flood WarningTAEWalton7 hr

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.