Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 23, NWS Fort Worth, TX

June 18, 1998Montague County, Texas

NWS Fort Worth, TX issued this tornado warning at Jun 18, 1998, 9:55 PM CDT for Montague County, Texas. It was in force for 35 min. No storm report in the archive falls 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.

The facts

Issued
Jun 18, 1998, 9:55 PM CDT (02:55 UTC)
Expired
Jun 18, 1998, 10:30 PM CDT
In force
35 min
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Montague County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.9 hours before the alert went out and 127 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 00:00Z on 1998-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3330 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 00:00Z on 1998-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
3330 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1860 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
68 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.

568 
WFUS1 KFTW 190257 RRA
TORFTW
TXC337-190330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
955 PM CDT THU JUN 18 1998

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

   * TORNADO WARNING FOR
     MONTAGUE COUNTY IN TEXAS

   * UNTIL 1030 PM CDT

   * AT 947 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
A      DEVELOPING TORNADO 2 MILES EAST OF NOCONA...MOVING SOUTHEAST 
AT 30 MILES PER HOUR.

   * OTHER LOCATIONS IN THE WARNING INCLUDE SPANISH FORT

LAT...LON 3391 9766 3378 9751 3403 9717 3419 9736

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 9:00 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson60 min
Jun 18, 9:27 PM CDTSevere Thunderstorm WarningFWDMontague63 min
Jun 18, 10:15 PM CDTSevere Thunderstorm WarningFWDCooke60 min
Jun 18, 10:30 PM CDTSevere Thunderstorm WarningFWDMontague60 min
Jun 18, 11:13 PM CDTSevere Thunderstorm WarningFWDCooke47 min
Jun 18, 11:20 PM CDTSevere Thunderstorm WarningFWDGrayson55 min
Jun 18, 11:25 PM CDTSevere Thunderstorm WarningFWDMontague65 min
Jun 19, 12:20 AM CDTSevere Thunderstorm WarningFWDDenton55 min
Jun 19, 2:12 AM CDTSevere Thunderstorm WarningFWDLamar33 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; the sounding from the Mesonet's radiosonde archive.