Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 49, NWS Houston/Galveston, TX

May 30, 1990Houston County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 30, 1990, 5:12 PM CDT for Houston County, Texas. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
May 30, 1990, 5:12 PM CDT (22:12 UTC)
Expired
May 30, 1990, 6:00 PM CDT
In force
48 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Houston 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

Longview/Gregg, TX (KGGG), launched 12:00Z, 10.2 hours before the alert went out and 139 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, Longview/Gregg, TX at 12:00Z on 1990-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 12:00Z on 1990-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 302 square meters per square second.193958Sfc1 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
113 J/kg
Mixed-layer CIN
-237 J/kg
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
302 m²/s²
0-3 km storm-relative helicity
373 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHOU 302213
SVRHOU
TXC225-302300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
512 PM CDT WED MAY 30 1990
 
THE NATIONAL WEATHER SERVICE IN HOUSTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST TEXAS
 
   ...HOUSTON COUNTY
 
RADAR INDICATED A SEVERE THUNDERSTORM SOUTHWEST OF CROCKETT IN HOUSTON
COUNTY. THIS STORM IS MOVING TO THE NORTHEAST AT 15 MILES AN HOUR AND
WILL MOVE ACROSS CROCKETT.
 
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.

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.