Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 1, NWS Brownsville, TX

April 1, 1990Hidalgo County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 1, 1990, 9:03 PM CDT for Hidalgo County, Texas. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Apr 1, 1990, 9:03 PM CDT (02:03 UTC)
Expired
Apr 1, 1990, 10:00 PM CDT
In force
57 min
Issued by
NWS Brownsville, TX
Area
Whole counties

County Hidalgo 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

Brownsville Intl, TX (KBRO), launched 00:00Z, 2.1 hours before the alert went out and 96 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, Brownsville Intl, TX at 00:00Z on 1990-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2164 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, Brownsville Intl, TX at 00:00Z on 1990-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939587897Sfc1 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
2164 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBRO 020205
SVRBRO
TXC215-020300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
903 PM CDT SUN APR 1 1990
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH TEXAS
 
   ...SOUTHERN HIDALGO COUNTY
 
A SEVERE THUNDERSTORM 10 MILES WEST OF MISSION IS MOVING EAST
SOUTHEAST AT 20 MPH. GOLF BALL SIZED HAIL WAS REPORTED FROM THIS STORM
SHORTLY BEFORE 900 PM.
 
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 EMERGENFCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 1, 7:53 PM CDT, 1 hour 10 minutes before
TXZ041-042-043-020200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
752 PM CDT SUN APR 1 1990

AT 730 PM BROWNSVILLE WEATHER RADAR SHOWED THUNDERSTORMS WITH VERY
HEAVY RAIN ABOUT 30 MILES NORTH OF MCCOOK AND ALSO ABOUT 30 MILES
NORTH OF RIO GRANDE CITY. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT
15 MPH. BRIEF GUSTY WINDS ARE POSSIBLE FROM THESE THUNDERSTORMS.

ALSO SHOWERS AND THUNDERSTORMS WERE SCATTERED FROM THE FALCON LAKE
AREA TO ABOUT 40 MILES SOUTHWEST OF THE LAKE. MOVEMENT WAS EAST AT 10
MPH.

A THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED IN MEXICO ABOUT 50
MILES SOUTHWEST OF SAN FERNANDO. THIS THUNDERSTORM WAS MOVING LITTLE.
Special weather statement, Apr 1, 8:43 PM CDT, 20 minutes before
TXZ043-020245-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
842 PM CDT SUN APR 1 1990

AT 830 PM BROWNSVILLE WEATHER RADAR SHOWED THUNDERSTORMS WITH VERY
HEAVY RAIN NEAR THE RIVER ABOUT 25 MILES WEST OF MISSION AND ALSO JUST
WEST OF SAN MANUEL. BRIEF GUSTY WINDS ARE POSSIBLE FROM THISE
THUNDERSTORMS.

MOVEMENT WAS TO THE SOUTHEAST AT 15 MPH.

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.