Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 2, NWS Brownsville, TX

March 9, 1994Cameron County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Mar 9, 1994, 7:19 AM CST for Cameron County, Texas. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Mar 9, 1994, 7:19 AM CST (13:19 UTC)
Expired
Mar 9, 1994, 8:00 AM CST
In force
41 min
Issued by
NWS Brownsville, TX
Area
Whole counties

County Cameron County, TX

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 1.3 hours before the alert went out and 29 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 12:00Z on 1994-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 1994-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939587897117Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
497 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
368 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBRO 091321
SVRBRO
TXC061-091415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
719 AM CST WED MAR 9 1994
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH TEXAS
 
   ...NORTHERN CAMERON COUNTY
 
   AND THE ADJACENT COASTAL WATERS OF THE LOWER TEXAS COAST
THE BAY WATERS OF THE LAGUNA MADRE
 
THE SEVERE THUNDERSTORM THAT MOVED ACROSS SOUTHERN HIDALGO IS NOW MOVING
INTO WESTERN CAMERON COUNTY ON LINE TO REACH THE HARLINGEN AREA BY 730
AM CST. THIS THUNDERSTORM CELL COULD PRODUCE ADDITIONAL HAIL TO WHAT HAS
ALREADY OCCURRED THIS MORNING. EARLIER REPORTS FROM OTHER THUNDERSTORMS
SHOWED THAT MARBLE TO GOLF BALL SIZE HAIL FELL FROM LA FERIA AND
HARLINGEN TO LOS FRESNOS BETWEEN 6 AM AND 645 AM THIS MORNING. BRIEF
VERY HEAVY RAINS AND STRONG GUSTY WINDS CAN ALSO BE EXPECTED.
 
 
 
 
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, Mar 9, 6:26 AM CST, 53 minutes before
TXZ248>255-514-091500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
625 AM CST WED MAR 9 1994

...A WIND ADVISORY IS IN EFFECT TODAY FOR ALL OF DEEP SOUTH TEXAS...
...THUNDERSTORMS DEVELOPING ACROSS PARTS OF THE LOWER VALLEY...

GUSTY NORTH AND NORTHWEST WINDS HAVE DEVELOPED BEHIND THE STRONG COLD
FRONT THAT MOVED OFF THE LOWER COAST BETWEEN 3 AND 4 AM THIS MORNING.
WIND GUSTS TO 39 MPH HAVE BEEN REPORTED AT BROWNSVILLE AND NEAR BAYVIEW
IN THE PRE-DAWN HOURS WITH 37 MPH AT HARLINGEN AND 34 MPH AT MCALLEN.

THUNDERSTORMS HAVE ALSO BEEN DEVELOPING BEHIND THE FRONT WITH SOME SEVERE
WEATHER BEGINNING TO SHOW UP. MARBLE SIZE HAIL WAS REPORTED ON THE
NORTHEAST SIDE OF HARLINGEN AROUND 6 AM. A STRONG THUNDERSTORM HAD ALSO
DEVELOPED JUST ACROSS THE RIVER IN MEXICO SOUTHWEST OF MCALLEN AND MOVING
NORTHEAST TOWARD THE MCALLEN-PHARR AREA. VERY STRONG WINDS AND HEAVY
RAIN CAN BE EXPECTED. THE THUNDERSTORM CELL THAT PRODUCED THE HAIL IN
HARLINGEN HAD MOVED TO THE COAST NORTH OF ARROYO CITY AS OF 620 AM AND
WILL LIKELY PRODUCE VERY ROUGH SEAS AS IT MOVES OVER THE LAGUNA MADRE AND
GULF COASTAL WATERS.

ALL RESIDENTS IN THE PATH OF THESE STORMS SHOULD BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS. ALL OF THE RAIN IS EXPECTED TO EXIT THE VALLEY
BY MID MORNING WITH DECREASING CLOUDS THIS AFTERNOON. THE GUSTY WINDS
WILL LAST MUCH OF THE DAY HOWEVER...AND COULD CAUSE DIFFICULT DRIVING
CONDITIONS FOR HIGH PROFILE VEHICLES.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 6:36 AM CSTSevere Thunderstorm WarningBROHidalgo69 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.