Alert archive / Texas / Tornado Warnings in 1990

Tornado Warning 39, NWS Amarillo, TX

August 18, 1990Moore County, Texas

NWS Amarillo, TX issued this tornado warning at Aug 18, 1990, 8:24 PM CDT for Moore County, Texas. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Aug 18, 1990, 8:24 PM CDT (01:24 UTC)
Expired
Aug 18, 1990, 9:00 PM CDT
In force
36 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Moore County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.4 hours before the alert went out and 70 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 1990-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 155 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 00:00Z on 1990-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
155 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
2330 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
29 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.

000 
TTAA00 KAMA 190126
TORAMA
TXC341-190200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
824 PM CDT  AUG 18 1990
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN THE TEXAS PANHANDLE
          ...NORTHEASTERN MOORE
 
AT 822 PM CDT..RADAR WAS INDICATING A POSSIBLE TORNADO 3 MILES
SOUTHEAST OF SUNRAY IN MOORE COUNTY. THIS THUNDERSTORM HAS A HISTORY
OF VERY STRONG WINDS. ROOF DAMAGE WAS REPORTED IN NORTHEAST DUMAS AS
THE STORM MOVED THROUGH DUMAS. MOVEMENT OF THIS THUNDERSTORM AND
POSSIBLE TORNADO WAS TO THE NORTHEAST AT 5 MPH.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
SC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 7:03 PM CDTSevere Thunderstorm WarningAMAHansford57 min
Aug 18, 7:07 PM CDTFlash Flood WarningAMARandall2 hr
Aug 18, 7:40 PM CDTSevere Thunderstorm WarningAMAMoore65 min
Aug 18, 7:47 PM CDTSevere Thunderstorm WarningAMAGray58 min
Aug 18, 8:03 PM CDTSevere Thunderstorm WarningAMAHansford, Sherman57 min
Aug 18, 8:42 PM CDTSevere Thunderstorm WarningAMAHemphill, Wheeler63 min
Aug 18, 8:42 PM CDTSevere Thunderstorm WarningAMALipscomb63 min
Aug 18, 9:38 PM CDTSevere Thunderstorm WarningAMABriscoe67 min

Nearby

Tornado Warnings in Texas, 1990Every tornado warning in 1990Tornadoes in 1990

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.