Severe Thunderstorm Warning 9, NWS Brownsville, TX

Issued

May 12, 1997, 10:51 PM CDT (03:51 UTC)

Expired

May 12, 1997, 11:50 PM CDT

In force

59 min

Issued by

NWS Brownsville, TX

Area

Whole counties

County Starr County, TX

The Brownsville radar (KBRO), 150 km from the middle of the area, began a volume at 03:54 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.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

980 
WUUS1 KBRO 130356
SVRBRO
TXC427-130450-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1051 PM CDT MON MAY 12 1997

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1150 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHERN TEXAS

   ...STARR COUNTY
 
AT 1050 PM...BROWNSVILLE DOPPLER RADAR INDICATED AN ISOLATED SEVERE
THUNDERSTORM OVER NORTHEAST STARR COUNTY 8 MILES SOUTHWEST OF LA
GLORIA.  THIS STORM WAS MOVING SOUTH AT 15 MPH AND WILL AFFECT THE
TOWN OF RINCON WITHIN THE HOUR.  THIS STORM HAS A HISTORY OF
PRODUCING LARGE HAIL AND TORRENTIAL DOWNPOURS.  DAMAGING
THUNDERSTORM WINDS ARE ALSO LIKELY WITH THIS STORM.
 
IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A
STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE
WARNING.

YURA/SPEECE

NWS Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 8:14 PM CDT, 2 hours 37 minutes earlier.

DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
810 PM CDT MON MAY 12 1997

THE MAIN QUESTION OF THE NIGHT CONCERNS POTENTIAL SVR WX/HVY RAIN.
AGREE WITH PREVIOUS DISC FROM CRP AND EWX THAT ISOLD SVR PULSE TYPE
STORMS COULD BE POSSIBLE WITH ONGOING ENVIRONMENT OF HIGH CAPES AND
WEAK UPPER LEVEL WND FIELDS.  (WILL BE WATCHING VIL LEVELS AS EWX
RECEIVED AROUND 1/2 INCH HAIL FROM STMS WITH VILS FROM 50 TO 55.)

ALTHOUGH SHARP WAS NOT ABLE TO COMPUTE A CAPE FOR THE 00Z BRO
SOUNDING...FEEL THAT CRP/S 00Z SOUNDING IS A MUCH BETTER
REPRESENTATION OF OUR ATMS THAN DRT/S 00Z FLIGHT.  ALL 00Z FLIGHTS
CONTINUE TO SHOW HIGH PWAT VALUES AROUND 1.4 INCHES. THIS FACTOR
AND PAST HISTORY OF HVY RAIN PRODUCTION OVER EWX/S CWA SHOULD MOVE
HVY RAIN POTENTIAL FURTHER SOUTH WITH THE FRONTAL BOUNDARYS
PROGRESS.  ACCORDINGLY...WOULD LIKE TO INCLUDE MENTION OF "LOCALLY
HEAVY RAINFALL POSSIBLE" IN THE 1ST PD OF TXZ248>255.  WILL HANDLE
MENTION OF HAIL AND WND GUSTS IN NOW/SPS'S.

IN THE CWF...HAVE JUST RECEIVED A MAREP VIA PHONE THAT SWELLS ARE
<3 FT ABOUT 2 MILES EAST OF PORT ISABEL.  ALSO...BUOY002 SHOWS
SWELLS RANGING FROM 3 TO 4 FT WITH A SLOW BUT STEADY DOWNWARD
TREND. ^ ALTHOUGH WNDS BEHIND THE PASSIGN FRONT MAY INCREASE THE
SWELLS TEMPORARILY...WOULD LIKE TO ADJUST WORDING OF CWF TO "SEAS 2
FEET NEARSHORE TO 4 FT OFFSHORE".

OTHERWISE...REST OF ONGOING FORECAST LOOKS GOOD WITH NO CHANGES
NEEDED.

60

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

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.