571
FXUS64 KBRO 171115 AAB
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
615 AM CDT WED SEP 17 2025
..NEW AVIATION
DISCUSSION
ISSUED AT 1006 PM CDT TUE SEP 16 2025
UNSETTLED WEATHER WILL CONTINUE TO BE THE RULE THROUGHOUT THE
PERIOD, WITH AN ACTIVE WEATHER PATTERN IN PLACE. THIS WILL BE DUE
TO GENERALLY ROBUST PRECIPITABLE WATER VALUES INTERACTING WITH
DAYTIME HEATING, THE EAST-TO-WEST MIGRATION OF THE DAYTIME
SEABREEZE BOUNDARY, AND A SERIES OF DISTURBANCES THAT WILL "RIDGE
RIDE" 500 MB HIGH PRESSURE CENTERED MORE OR LESS OVER NORTHWEST
MEXICO.
TEMPERATURE-WISE, THE DAILY THREAT FOR SHOWERS AND THUNDERSTORMS,
ALONG WITH THE ASSOCIATED CLOUD COVER, WILL HAVE A DAMPENING
EFFECT, WITH VALUES MORE NEAR NORMAL FOR THIS TIME OF YEAR.
FINALLY, WITH CONTINUED SLIGHTLY ELEVATED SEAS, A MODERATE RISK OF
RIP CURRENTS IS LIKELY FOR THE BEACHES ALONG THE LOWER TEXAS
COAST.
AVIATION
(12Z TAFS)
ISSUED AT 613 AM CDT WED SEP 17 2025
VFR CONDITIONS ARE EXPECTED TO GENERALLY PREVAIL THROUGH THE TAF
PERIOD, WITH BRIEF MVFR TO IFR CEILINGS NEAR ANY STRONGER SHOWERS
OR THUNDERSTORMS. THE BEST CHANCE OF CONVECTION ARRIVES LATE THIS
MORNING AND CONTINUES INTO MID AFTERNOON WITH TALL CB.
MARINE
ISSUED AT 1006 PM CDT TUE SEP 16 2025
ELONGATED SURFACE HIGH PRESSURE OVER THE ENTIRE GULF OF AMERICA
WILL CONTINUE TO BE THE DOMINANT FEATURE FOR THE LOWER TEXAS
COAST FOR THE PERIOD. GENERALLY MODERATE WINDS AND SEAS ARE
FORECAST, WITH SMALL CRAFT SHOULD EXERCISE CAUTION AND SMALL
CRAFT ADVISORY NOT LIKELY TO BE NEEDED.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 89 76 91 77 / 80 40 60 40
HARLINGEN 91 73 91 73 / 70 30 50 20
MCALLEN 94 75 95 76 / 70 20 50 10
RIO GRANDE CITY 94 73 95 73 / 60 20 40 10
SOUTH PADRE ISLAND 87 81 87 81 / 80 50 50 50
BAYVIEW/PORT ISABEL 88 76 89 77 / 70 40 50 30
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...66-TOMASELLI
LONG TERM....66-TOMASELLI
AVIATION...56-HALLMAN
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