816
FXUS64 KBRO 180525 AAA
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1225 AM CDT THU SEP 18 2025
..NEW AVIATION
DISCUSSION
ISSUED AT 1038 PM CDT WED SEP 17 2025
PERSISTENT TROPICAL MOISTURE WITH PWAT VALUES BETWEEN 1.5-2.3
INCHES LOOKS TO REMAIN ACROSS DEEP SOUTH TEXAS THROUGH THE
WEEKEND. PWAT VALUES DECREASE SLIGHTLY GOING INTO NEXT WEEK,
REMAINING AROUND 1.5 TO 1.8 INCHES THROUGH MID WEEK. A SERIES OF
UPPER LEVEL DISTURBANCES AND FORCING ALONG THE AFTERNOON SEA
BREEZE WILL LIKELY BE ABLE TO TAP INTO THIS MOISTURE, TO PRESENT A
DAILY CHANCE FOR ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS
THROUGH THE PERIOD. CONVECTION WILL BE MOST LIKELY ALONG AND EAST
OF I-69C, THOUGH SOME CONVECTION WILL LIKELY CONTINUE FURTHER
INLAND AT TIMES. THE AMPLE MOISTURE COULD ALLOW SOME OF THESE
SHOWERS AND THUNDERSTORMS TO BRIEFLY PRODUCE HEAVY RAINFALL. THIS
COULD LEAD TO SOME PONDING OF WATER OR MINOR NUISANCE FLOODING.
HIGH TEMPERATURES LOOK TO REMAIN IN THE 90S THROUGH THE PERIOD,
WITH OVERNIGHT LOWS LARGELY REMAINING IN THE LOW TO MID 70S,
THOUGH WESTERN PORTIONS OF THE CWA MAY DIP INTO THE UPPER 60S
TONIGHT AND THURSDAY NIGHT.
AVIATION
(06Z TAFS)
ISSUED AT 1221 AM CDT THU SEP 18 2025
VFR CONDITIONS ARE EXPECTED TO GENERALLY PREVAIL THROUGH THE TAF
PERIOD WITH ANOTHER ROUND OF CONVECTION EXPECTED LATE MORNING INTO
THE AFTERNOON FROM EAST TO WEST WITH TALL CB. BRIEF MVFR TO IFR
CEILINGS ARE POSSIBLE NEAR ANY STRONGER SHOWERS OR THUNDERSTORMS.
MARINE
ISSUED AT 1038 PM CDT WED SEP 17 2025
GENERALLY FAVORABLE MARINE CONDITIONS ARE EXPECTED THROUGH THE
PERIOD. DAILY RAIN CHANCES ARE EXPECTED TO CONTINUE THROUGH THE
PERIOD, WITH ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS
LIKELY OVER THE GULF WATERS. LIGHT TO MODERATE ONSHORE WINDS AND
SLIGHT TO MODERATE SEAS ARE EXPECTED TO CONTINUE THROUGH THE
PERIOD.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 90 77 92 77 / 70 30 60 40
HARLINGEN 92 72 92 73 / 50 20 60 20
MCALLEN 95 76 95 76 / 60 20 50 20
RIO GRANDE CITY 95 72 96 73 / 60 20 40 10
SOUTH PADRE ISLAND 87 80 87 81 / 60 30 60 60
BAYVIEW/PORT ISABEL 89 76 89 76 / 50 20 60 40
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...60-BE
LONG TERM....60-BE
AVIATION...56-HALLMAN
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