Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 2, NWS Amarillo, TX

July 27, 1998Dallam County, Sherman County, Texas

NWS Amarillo, TX issued this tornado warning at Jul 27, 1998, 6:46 PM CDT for Dallam County, Sherman County, Texas. It was in force for 49 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
Jul 27, 1998, 6:46 PM CDT (23:46 UTC)
Expired
Jul 27, 1998, 7:35 PM CDT
In force
49 min
Issued by
NWS Amarillo, TX
Area
Whole counties

Counties Dallam County, TX, Sherman County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.8 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, Amarillo Airport, TX at 12:00Z on 1998-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 420 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, Amarillo Airport, TX at 12:00Z on 1998-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 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
420 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
950 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAMA 272346 RRA
TORAMA
TXC111-421-280035-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
646 PM CDT MON JUL 27 1998

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN DALLAM COUNTY IN THE TEXAS PANHANDLE
  WESTERN SHERMAN COUNTY IN THE TEXAS PANHANDLE

* UNTIL 735 PM CDT

DALHART POLICE DEPARTMENT HAS RECEIVED A REPORT FROM THE PUBLIC OF A
TORNADO ONE MILE NORTH OF CONLIN.  THIS STORM IS MOVING NORTHEAST AT
15 MPH.

A TORNADO HAS BEEN SIGHTED. IF SIRENS GO OFF...DO NOT GO OUTSIDE.
THE SIRENS MEAN YOU ARE IN DANGER. SEEK SHELTER IMMEDIATELY!

JRC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 1:07 AM CDTFlash Flood WarningAMAOchiltree118 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.