Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 52, NWS Midland/Odessa, TX

May 31, 1990Terrell County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at May 31, 1990, 6:20 PM CDT for Terrell County, Texas. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
May 31, 1990, 6:20 PM CDT (23:20 UTC)
Expired
May 31, 1990, 7:15 PM CDT
In force
55 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Terrell 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

Del Rio, TX (KDRT), launched 12:00Z, 11.3 hours before the alert went out and 153 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, Del Rio, TX at 12:00Z on 1990-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3399 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, Del Rio, TX at 12:00Z on 1990-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
3399 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 312320
SVRMAF
TXC443-010015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
620 PM CDT THU MAY 31 1990
 
THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST TEXAS
 
   ...TERRELL COUNTY
 
AT 620 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM MOVING ACROSS THE
RIO GRANDE INTO TERRELL COUNTY.
 
THIS STORM IS MOVING NORTH AT 20 MILES AN HOUR.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
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.

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 31, 5:35 PM CDTSevere Thunderstorm WarningMAFWard40 min
May 31, 6:10 PM CDTSevere Thunderstorm WarningMAFEctor65 min
May 31, 6:22 PM CDTSevere Thunderstorm WarningMAFAndrews68 min
May 31, 6:36 PM CDTSevere Thunderstorm WarningMAFWard, Winkler69 min

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; the sounding from the Mesonet's radiosonde archive.