Severe Thunderstorm Warning 24, NWS Brownsville, TX

DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
945 AM CDT TUE MAY 2 2000

OUTFLOW BOUNDARY JUST TO OUR NORTH WILL BE MOVING SOUTH DURING THE
LATE MORNING AND AFTERNOON.  THIS WILL LIKELY BE A TRIGGER FOR
ADDITIONAL THUNDERSTORM ACTIVITY.  WILL GO ALONG WITH CURRENT ZONES
WITH MENTION OF SVR TSMS AS PER SPC DAY 1 DISCUSSION.  OUR VWP
CONTINUES TO SHOW 35-45 KTS OF WIND IN THE LOWEST 10KFT.  THE
MORNING SOUNDING SHOWS GOOD INSTABILITY WHILE THE LATEST MODEL RUNS
SHOW ANOTHER S/W TROF ROTATING AROUND THE SOUTHERN BASE OF MAIN
TROF.  S/W IS CURRENTLY OVER THE BIG BEND AREA BUT VORTICITY
ADVECTION SHOULD BE AFFECTING THE AREA BY AFTERNOON.  THIS ALONG
WITH THE INTERACTION OF THE BOUNDARY SHOULD MAKE FOR AN INTERESTING
AFTERNOON AND EVENING.  THE THING THAT COULD HAPPEN WOULD BE THE
BOUNDARY OUTRUNS THE APPROACHING VORTICITY AND WE SOCKED IN WITH
CLOUDS AND COOLER STABLE AIR.  THAT WOULD KNOCK DOWN OUR POP CHANCES
CONSIDERABLY.

IT DOES LOOK LIKE THE MAIN TROF AXIS WILL BE THROUGH THE AREA BY WED
MORNING SO TOMORROW SHOULD BE MUCH IMPROVED.

WILL BE ISSUING A HWO SHORTLY.

69

.WFO BRO INTERNET ADDRESS...WWW.SRH.NOAA.GOV/BRO

.BRO...NONE.

TXZ248>257-030000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1020 AM CDT TUE MAY 2 2000

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED LATE THIS MORNING INTO
THE AFTERNOON HOURS ACROSS MUCH OF DEEP SOUTH TEXAS.  ALREADY BY MID
MORNING...STRONG THUNDERSTORMS WERE BEGINNING TO DEVELOP OVER MIDDLE
PORTIONS OF DEEP SOUTH TEXAS.  AN OUTFLOW BOUNDARY FROM STORMS LAST
NIGHT...ALONG WITH AN APPROACHING UPPER LEVEL STORM SYSTEM...WILL
HELP TRIGGER THE THUNDERSTORMS TODAY.

THE SOUTHEASTERN SECTIONS OF DEEP SOUTH TEXAS IS RECEIVING SUNSHINE
THIS MORNING WHICH WILL ALLOW THE ATMOSPHERE TO FURTHER DESTABILIZE.
THIS WILL ADD TO THE POTENTIAL OF SEVERE WEATHER THIS AFTERNOON.  IN
ADDITION...TEMPERATURES ARE FORECAST TO COOL IN THE MID LEVELS WHICH
WILL INCREASE THE CHANCES FOR LARGE HAIL AND DAMAGING WINDS.
ISOLATED TORNADOES WILL ALSO BE A POSSIBILITY.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN DEEP SOUTH
TEXAS SHOULD BE ON THE ALERT FOR THE THUNDERSTORM DEVELOPMENT.  ALL
RESIDENTS OF DEEP SOUTH TEXAS SHOULD KEEP UPDATED ON THE WEATHER
THROUGH LOCAL RADIO...TELEVISION...OR CABLE SOURCES...AND NOAA
WEATHER RADIO.

TXZ248>257-022300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1230 PM CDT TUE MAY 2 2000

...SEVERE THUNDERSTORM WATCH FOR ALL OF DEEP SOUTH TEXAS AND THE
NEARBY COASTAL WATERS FROM 1215 PM UNTIL 600 PM CDT...

THE STORM PREDICTION CENTER IN NORMAN OKLAHOMA HAS ISSUED A SEVERE
THUNDERSTORM WATCH FOR ALL OF DEEP SOUTH TEXAS AND THE ADJACENT
COASTAL WATERS UNTIL 600 PM.

LARGE HAIL...VERY HEAVY RAIN...DAMAGI)NG WINDS...AND DANGEROUS
LIGHTNING ARE LIKELY THROUGH THIS AFTERNOON AND EVENING.

THE SAFEST PLACE IN A SEVERE THUNDERSTORM IS IN A STRONG AND STURDY
BUILDING IN THE MOST INTERIOR ROOM OF YOUR HOME OR BUSINESS.