Alert archive / Texas / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 30, NWS Brownsville, TX

November 17, 1995Kenedy County, Willacy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Nov 17, 1995, 7:30 AM CST for Kenedy County, Willacy County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Nov 17, 1995, 7:30 AM CST (13:30 UTC)
Expired
Nov 17, 1995, 8:30 AM CST
In force
60 min
Issued by
NWS Brownsville, TX
Area
Whole counties

Counties Kenedy County, TX, Willacy County, TX

The radar

The Brownsville radar (KBRO), 90 km from the middle of the area, began a volume at 13:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 1.5 hours before the alert went out and 92 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 1995-11-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 763 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 1995-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
763 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
689 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
268 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBRO 171332 RRA
SVRBRO
TXC261-489-171430-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
730 AM CST FRI NOV 17 1995
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH TEXAS
 
   ...KENEDY COUNTY...WILLACY COUNTY
 
   AND THE ADJACENT COASTAL WATERS OF THE LOWER TEXAS COAST
THE BAY WATERS OF THE LAGUNA MADRE
 
AT 730 AM...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS EXTENDING
FROM NEAR SARITA IN NORTHERN KENEDY COUNTY TO JUST WEST OF
RAYMONDVILLE.  THE STORMS WERE MOVING EAST AT 30 MILES AN HOUR
AND WILL SWEEP ACROSS THE EASTERN HALF OF KENEDY COUNTY AND
THROUGH THE RAYMONDVILLE AND SAN PERLITA AREAS BY 830 AM.
 
THE MAIN THREAT WITH THESE STORMS IS WINDS IN EXCESS OF 55 MILES
AN HOUR AND TORRENTIAL RAIN WHICH PRODUCES FLOODING. THESE STORMS
UPROOTED TREES IN SAN MANUEL AND PRODUCED LOCALIZED FLOODING THERE
AS WELL.
 
MOTORISTS SHOULD NEVER ATTEMPT TO DRIVE THROUGH AREAS WHERE WATER
COVERS THE ROAD. REMAIN INSIDE A STRONG BUILDING.  DAMAGING WIND...
LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLEd
IN SEVERE THUNDERSTORMS.
 
&
INGRAM

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.

NWS Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Nov 17, 2:25 AM CST, 5 hours 5 minutes earlier.

Area forecast discussion, Nov 17, 2:25 AM CST, 5 hours 5 minutes before
DEEP SOUTH TEXAS WEATHER FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
225 AM CDT FRI NOV 17 1995

5H LOW TO CONT TO KEEP THINGS QUITE MOIST HERE FOR AT LEAST THE NEXT
COUPLE OF DAY.  STLT WV LOOP THIS MRNG SHOWS UPPER LOW SPINNING NR
BIG BEND RGN.  88D SHOWS NICE COMMA SHAPED AREA OF CONV OVR MUCH OF
THE W PART OF DEEP S TX THIS MRNG...WITH STRONGEST STORMS S OF ZAPATA
NR RIVER. CONVECT MOVG EASTWARD...SO EXPECT A ROUND OF RWS/TRWS ACRSS
MOST OF FA THIS MRNG.  SOME DRYING EVIDENCED ON STLT BEHIND CNVC...SO
WL TAPER OFF RN FOR AFTN.  NEXT WV SHLD IMPACT RGN TNT INTO SAT
BRINGING MORE RN.  THEN 5H LOW PROGGED TO RETOGRADE SW BY SUN...SO WL
DCRS POPS TO MORE SCTD ON SUN.

TEMPS TO STAY IN A NARROW RANGE WITH HIGH MOISTURE AND NO INSOLATION.
CONT TO FAVOR FAN/AVN GUIDANCE FOR MAXS.  MINS SEEM TOO LOW ON ALL
MODELS AS I SEE NO CLRG OR CAA TO DROP THEM.  WL BET ON PERSISTENCE
AND ADD A FEW DEGREES TO THEM.

EXTENDED SHOWS WHAT COULD BE A FAIRLY GOOD FRNT MOVG SOUTH INTO RGN
BY TUES...AS SHOWN BY THE ECM/UK MODELS.  AVN/MRF NOT SHOWING MUCH
COOLING ATTM.  5H RIDGE PROGGED OVR NW TERRITORYS WOULD FAVOR BLDUP
OF SOME COLD AIR.  WL GO DRY AND COOLER THEN AND SEE WHAT DEVELOPS
OVR THE NEXT FEW DAYS.

54

Nearby

Severe Thunderstorm Warnings in Texas, 1995Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.