Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 48, NWS Brownsville, TX

October 13, 1997Cameron County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Oct 13, 1997, 9:26 AM CDT for Cameron County, Texas. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 13, 1997, 9:26 AM CDT (14:26 UTC)
Expired
Oct 13, 1997, 10:30 AM CDT
In force
64 min
Issued by
NWS Brownsville, TX
Area
Whole counties

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 27 km from the middle of the area, began a volume at 14:30 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, 2.4 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 1997-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2438 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 1997-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
2438 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
106 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 131340 RRA
SVRBRO
TXC061-131530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
926 AM CDT MON OCT 13 1997
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH TEXAS
 
   ...CAMERON COUNTY
 
   AND THE ADJACENT COASTAL WATERS OF THE LOWER TEXAS COAST
   THE BAY WATERS OF THE LAGUNA MADRE
 
AT 920 AM...NATIONAL WEATHER SERVICE RADAR IN BROWNSVILLE SHOWED A
LINE OF SEVERE THUNDERSTORMS OVER CENTRAL CAMERON COUNTY NEAR THE
RIO HONDO AREA. THESE STORMS WERE MOVING SOUTHEAST AT 10 TO 15 MPH
AND HAVE PRODUCED DAMAGING WINDS IN THE MISSION AREA OF HIDALGO
COUNTY.  RESIDENTS OF CAMERON COUNTY SHOULD BE ON THE LOOKOUT FOR
DAMAGING WINDS THROUGH 1030 AM.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
&

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 Oct 13, 8:47 AM CDT, 39 minutes earlier.

Area forecast discussion, Oct 13, 8:47 AM CDT, 39 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
935 AM CDT MON OVT 13 1997

LITTLE TIME FOR DISCUSSION...GOING FORECAST LOOKS OK.

60

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 8:30 AM CDTFlash Flood WarningBROCameron, Hidalgo, Kenedy, Willacy3 hr
Oct 13, 11:37 AM CDTFlash Flood WarningBROCameron, Willacy6 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

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.