Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Amarillo, TX

May 15, 1998Armstrong County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 15, 1998, 1:09 AM CDT for Armstrong County, Texas. It was in force for 61 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
May 15, 1998, 1:09 AM CDT (06:09 UTC)
Expired
May 15, 1998, 2:10 AM CDT
In force
61 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Armstrong County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.2 hours before the alert went out and 43 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 00:00Z on 1998-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1998-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.1939587897117Sfc1 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
39 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
3541 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
62 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.

739 
WUUS1 KAMA 150608 RRA
SVRAMA
TXC011-150710-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
109 AM CDT FRI MAY 15 1998

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ARMSTRONG COUNTY IN THE TEXAS PANHANDLE

* UNTIL 210 AM CDT

* AT 106 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 14 MILES SOUTH OF CLAUDE OR 13 MILES
  SOUTHWEST OF GOODNIGHT MOVING NORTHEAST AT 45 MPH.

* SEVERE THUNDERSTORM WILL BE NEAR...
  GOODNIGHT         BY 120 AM CDT

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

GOEHRING

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 7:52 PM CDTSevere Thunderstorm WarningAMACollingsworth63 min
May 14, 8:48 PM CDTSevere Thunderstorm WarningAMAWheeler32 min
May 14, 8:56 PM CDTSevere Thunderstorm WarningAMACollingsworth29 min
May 15, 1:27 AM CDTSevere Thunderstorm WarningAMADonley, Gray58 min
May 15, 2:08 AM CDTSevere Thunderstorm WarningAMACollingsworth, Hemphill, Wheeler62 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning 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.