691
FXUS64 KBRO 170530 AAA
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1230 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
(06Z TAFS)
ISSUED AT 1228 AM CDT WED SEP 17 2025
VFR CONDITIONS ARE EXPECTED TO GENERALLY PREVAIL THROUGH THE TAF
PERIOD WITH SCATTERED CONVECTION EXPECTED TO DEVELOP LATE MORNING
INTO LATE AFTERNOON. BRIEF MVFR TO IFR CEILINGS ARE POSSIBLE WITH
ANY HEAVIER SHOWER OR THUNDERSTORM. EXPECT TALL CB BY MID
AFTERNOON. CONFIDENCE IS LOWER IN CONTINUING CONVECTION THIS
EVENING.
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 76 91 77 92 / 40 60 40 60
HARLINGEN 73 91 73 93 / 30 50 20 50
MCALLEN 75 95 76 96 / 20 50 10 50
RIO GRANDE CITY 73 95 73 96 / 20 40 10 40
SOUTH PADRE ISLAND 81 87 81 87 / 50 50 50 60
BAYVIEW/PORT ISABEL 76 89 77 90 / 40 50 30 50
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...66-TOMASELLI
LONG TERM....66-TOMASELLI
AVIATION...56-HALLMAN
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