Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 4, NWS Brownsville, TX

April 15, 1994Brooks County, Jim Hogg County, Zapata County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 15, 1994, 10:12 PM CDT for Brooks County, Jim Hogg County, Zapata County, Texas. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Apr 15, 1994, 10:12 PM CDT (03:12 UTC)
Expired
Apr 15, 1994, 11:15 PM CDT
In force
63 min
Issued by
NWS Brownsville, TX
Area
Whole counties

Counties Brooks County, TX, Jim Hogg County, TX, Zapata County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.2 hours before the alert went out and 155 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, Corpus Christi, TX at 00:00Z on 1994-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2863 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, Corpus Christi, TX at 00:00Z on 1994-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.19395878Sfc1 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
2863 J/kg
Mixed-layer CIN
-181 J/kg
Mixed-layer LCL
716 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
52 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 KBRO 160313
SVRBRO
TXC047-247-505-160415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1012 PM CDT FRI APR 15 1994
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN SOUTH TEXAS
 
   ...BROOKS COUNTY...JIM-HOGG COUNTY...ZAPATA COUNTY
 
AT 1010 PM CDT...RADAR INDICATED SEVERE THUNDERSTORMS OCCURRING JUST
NORTHWEST OF ZAPATA...AND ALSO BETWEEN HEBBRONVILLE AND FALFURRIAS.
THESE STORMS WERE IN A LINE AHEAD OF A COLD FRONT AND WERE MOVING TO THE
SOUTHEAST NEAR 20 MILES AN HOUR. THESE THUNDERSTORMS HAVE A HISTORY OF
PRODUCING LARGE HAIL AND STRONG GUSTY WINDS.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
 
&

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 15, 9:54 PM CDT, 18 minutes before
TXZ248>255-514-160400-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
950 PM CDT FRI APR 15 1994

...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN APPROACHING NORTH AND WEST
AREAS OF DEEP SOUTH TEXAS...

AT 930 PM BROWNSVILLE RADAR INDICATED SEVERAL STRONG THUNDERSTORMS
NORTHWEST OF A LINE FROM 50 MILES WEST OF ZAPATA TO ALICE TO CORPUS
CHRISTI. MOVEMENT WAS TO THE SOUTHEAST NEAR 15 MILES AN HOUR.

THESE THUNDERSTORMS HAVE BEEN PRODUCING SEVERE WEATHER ACROSS SOUTH CENTRAL
TEXAS AND PERSONS IN THE PATH OF THESE STORMS CAN EXPECT VERY HEAVY RAINS
CAUSING LOCAL FLOODING OF LOW LYING AREAS...STRONG GUSTY WINDS...DANGEROUS
LIGHTNING AND POSSIBLE HAIL. NORTHERN AREAS OF ZAPATA...JIM HOGG AND BROOKS
COUNTIES WILL BE EXPERIENCING THESE THUNDERSTORMS IN THE NEXT FEW MINUTES.

STAY TUNED TO NOAA WEATHER RADIO AND YOUR LOCAL RADIO AND TV STATIONS FOR
FURTHER STATEMENTS AND ANY POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 11:29 PM CDTSevere Thunderstorm WarningBROJim Hogg, Starr, Zapata61 min
Apr 16, 12:33 AM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo57 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every severe thunderstorm warning in 1994

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.