Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 13, NWS Fort Worth, TX

April 26, 1998Coryell County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 26, 1998, 6:12 PM CDT for Coryell County, Texas. It was in force for 33 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Apr 26, 1998, 6:12 PM CDT (23:12 UTC)
Expired
Apr 26, 1998, 6:45 PM CDT
In force
33 min
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Coryell County, TX

What was reported inside it

TimeReportWhereRemark
Apr 26, 6:35 PM CDTHail 0.75Purmela, TX
Apr 26, 6:45 PM CDTTornado F0Purmela, TXA brief tornado touchdown was observed by a deputy sheriff.

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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 26, 3:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.2 hours before the alert went out and 164 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, Fort Worth, TX at 12:00Z on 1998-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 177 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, Fort Worth, TX at 12:00Z on 1998-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897117136Sfc1 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
177 J/kg
Mixed-layer CIN
-328 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
7 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.

206 
WFUS1 KFTW 262314 RRA
TORFTW
TXC099-262345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
612 PM CDT SUN APR 26 1998

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

   * TORNADO WARNING FOR
     CORYELL COUNTY IN TEXAS
     INCLUDING GATESVILLE

   * UNTIL 645 PM CDT

   * AT 612 PM CDT THE PUBLIC REPORTED A TORNADO 20 MILES WEST       
     OF GATESVILLE...OR JUST EAST OF EVANT...MOVING EAST AT 35 MILES
     PER HOUR.

    * TORNADO WILL BE
     NEAR GATESVILLE AT 640 PM CDT
    
SPOTTERS FOR LOCAL TELEVISION STATIONS REPORT A BRIEF TORNADO 
TOUCHDOWN AROUND 610 PM.  OTHER BRIEF TORNADOES MAY DEVELOP 
RAPIDLY.  DOPPLER RADAR INDICATES THAT A MORE SUBSTANTIAL TORNADO 
MAY DEVELOP WITH THIS STORM.
 

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3134 9765 3140 9809 3150 9812 3159 9768

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 3:48 PM CDTSevere Thunderstorm WarningFWDYoung57 min
Apr 26, 3:58 PM CDTSevere Thunderstorm WarningFWDMills62 min
Apr 26, 4:26 PM CDTTornado WarningFWDMills34 min
Apr 26, 4:45 PM CDTSevere Thunderstorm WarningFWDYoung45 min
Apr 26, 4:57 PM CDTSevere Thunderstorm WarningFWDMills63 min
Apr 26, 5:15 PM CDTSevere Thunderstorm WarningFWDCoryell, Hamilton60 min
Apr 26, 5:27 PM CDTSevere Thunderstorm WarningFWDMontague63 min
Apr 26, 5:53 PM CDTTornado WarningFWDMontague37 min
Apr 26, 6:30 PM CDTSevere Thunderstorm WarningFWDStephens60 min
Apr 26, 6:37 PM CDTSevere Thunderstorm WarningFWDLampasas68 min

Nearby

Tornado Warnings in Texas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.