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000
FXUS64 KBRO 231123 AAA
AFDBRO

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
623 AM CDT THU MAY 23 2013

.DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW.

&&

.AVIATION...MVFR CONDITIONS CONTINUE ACROSS DEEP SOUTH TEXAS AND
THE RIO GRANDE VALLEY THIS MORNING. AGRICULTURAL BURNING ACROSS
MEXICO MAY PROVIDE SLIGHT REDUCTIONS IN VISIBILITIES DUE TO HAZE
THIS MORNING. CEILINGS EXPECTED TO BECOME VFR BY LATE THIS MORNING
AS HIGH PRESSURE AND DRIER AIR MOVES INTO THE AREA. LIGHT
SOUTHEAST WINDS THIS MORNING WILL INCREASE TO MODERATE LEVELS AND
BECOME GUSTY THIS AFTERNOON. LOW STRATUS MOVES BACK ACROSS THE
AREA LATE THIS EVENING WITH MVFR CEILING POSSIBLE AROUND 3Z
FRIDAY.

&&

.PREV DISCUSSION... /ISSUED 430 AM CDT THU MAY 23 2013/

SHORT TERM /NOW THROUGH FRIDAY/...MID AND UPPER RIDGING WILL
CONTINUE ACROSS DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY THROUGH
THE FORECAST PERIOD. BROAD SURFACE HIGH PRESSURE OVER THE NORTHERN
GULF OF MEXICO WILL INTERACT WITH LOW PRESSURE ACROSS WEST TEXAS
THROUGH LATE WEEK. THIS WILL ALLOW SOUTHEAST WINDS TO INCREASE A BIT
TODAY AND FRIDAY.  AGRICULTURAL BURNING IN MEXICO WILL LIKELY RESULT
IN PERIODS OF HAZY CONDITIONS ACROSS THE AREA...ESPECIALLY ALONG THE
COAST...THROUGH THE PERIOD. MORNING LOW CLOUDS WILL LIFT/SCATTER
OUT AS DAYTIME HEATING AND WINDS INCREASE BY LATE MORNING. HIGH
TEMPERATURES WILL RANGE FROM THE LOW TO MID 80S AT THE BEACHES...LOW
TO MID 90S IN THE RIO GRANDE VALLEY AND UPPER 90S OVER THE WEST.
MOSTLY CLOUDY...CONTINUED MILD AND HUMID TONIGHT WITH OVERNIGHT LOW
TEMPERATURES IN THE MID TO UPPER 70S. A LITTLE HIGHER HUMIDITY AND
CLOUD COVER SHOULD RESULT IN SLIGHTLY COOLER HIGH TEMPERATURES
ACROSS THE AREA ON FRIDAY.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...NO SIGNIFICANT CHANGES
WERE MADE TO THE FORECAST IN THE LONG TERM. 500 MB HIGH PRESSURE
WILL REMAIN SITUATED OVER THE BAJA CALIFORNIA...THE NORTHERN HALF
OF MEXICO...AND THE GULF OF MEXICO THROUGH THE PERIOD...AND EXTENDED
OVER THE RIO GRANDE VALLEY AND DEEP SOUTH TEXAS. THIS WILL PRODUCE
CONTINUED DRY WEATHER WITH VERY WARM TEMPERATURES FOR THE WEEKEND
AND INTO THE MIDDLE OF NEXT WEEK. ONE POTENTIAL ADJUSTMENT THAT MAY
NEED TO BE MADE IN THE NEAR FUTURE IS THE INCLUSION OF A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS FOR EARLY IN THE WEEKEND OVER
THE WESTERN THIRD OF THE BRO CWFA...AS A WEAK 500 MB TROUGH TRANSITS
OVER THE TEXAS BIG BEND...INITIATING CONVECTION THAT MAY SNEAK INTO
ZAPATA...STARR...AND JIM HOGG COUNTY ON SATURDAY.

MARINE...NOW THROUGH FRIDAY...BROAD SURFACE HIGH PRESSURE OVER THE
NORTHERN GULF OF MEXICO ALONG WITH BUILDING HIGH PRESSURE ALOFT WILL
PROVIDE LIGHT TO MODERATE SOUTHEAST WINDS AND MODERATE SEAS THROUGH
THE FORECAST PERIOD. AREAS OF HAZE WITH REDUCED VISIBILITIES FROM
AGRICULTURAL BURNING IN MEXICO CAN BE EXPECTED THROUGH TONIGHT.

FRIDAY NIGHT THROUGH WEDNESDAY...GENERALLY MODERATE WINDS AND SEAS
ARE EXPECTED ALONG THE LOWER TEXAS COAST THROUGH THE WEEKEND WITH
SURFACE HIGH PRESSURE IN CONTROL OVER THE WESTERN GULF OF MEXICO.
WINDS AND SEAS WILL INCREASE MONDAY THROUGH WEDNESDAY...WITH SMALL
CRAFT EXERCISE CAUTION OR SMALL CRAFT ADVISORY POSSIBLE...AS THE
HIGH PRESSURE SYSTEM INTERACTS WITH DEVELOPING LOW PRESSURE OVER
THE CENTRAL PLAINS.

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

$$

THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT:
HTTP://WWW.WEATHER.GOV/BROWNSVILLE

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