Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 9, NWS Amarillo, TX

March 13, 1990Armstrong County, Carson County, Gray County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Mar 13, 1990, 6:09 AM CST for Armstrong County, Carson County, Gray County, Texas. It was in force for 66 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 13, 1990, 6:09 AM CST (12:09 UTC)
Expired
Mar 13, 1990, 7:15 AM CST
In force
66 min
Issued by
NWS Amarillo, TX
Area
Whole counties

Counties Armstrong County, TX, Carson County, TX, Gray County, TX

The radar

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

What was reported inside it

TimeReportWhereRemark
Mar 13, 6:30 AM CSTHail 1.75Carson, TX
Mar 13, 6:45 AM CSTHail 0.75Gray, TX

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 0.2 hours before the alert went out and 48 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 1990-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1039 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1990-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 163 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
1039 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
163 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAMA 131210
SVRAMA
TXC011-065-179-131315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
609 AM CST TUE MAR 13 1990
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN THE TEXAS PANHANDLE
          ...EASTERN ARMSTRONG...EASTERN CARSON...WESTERN GRAY
 
AT 610 AM CST..RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHEASTERN
ARMSTRONG COUNTY..JUST NORTH OF GOOODNIGHT. THIS THUNDERSTORM WILL
LIKELY PRODUCE 1 INCH HAIL AND STRONG GUSTY WINDS AS IT MOVES TO THE
NORTHEAST AT 30 MPH.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE HA
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.