276
FXUS64 KBRO 082302 AAB
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
602 PM CDT FRI AUG 8 2025
..NEW AVIATION
DISCUSSION
ISSUED AT 1206 PM CDT FRI AUG 8 2025
TYPICAL SUMMERTIME HOT AND HUMID CONDITIONS ARE EXPECTED TO PERSIST
OVER DEEP SOUTH TEXAS AS UPPER-LEVEL RIDGING CONTINUES BOTH OVER THE
DESERT SOUTHWEST AND THE OVER THE EASTERN GULF. AT THE SURFACE, MILD
OFFSHORE TROUGHING WILL CREATE CONDITIONS THAT ARE CONDUCIVE FOR SEA
BREEZE SHOWER/THUNDERSTORM FORMATION TOMORROW THROUGH MIDWEEK NEXT
WEEK. ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO FORM MAINLY
IN THE AFTERNOONS AS THE SEA BREEZE SURGES WESTWARD INLAND, AND ARE
EXPECTED PRIMARILY IN AREAS EAST OF I-69C. CHANCES OF PRECIPITATION
EACH DAY WILL RANGE BETWEEN 20-30%. WINDS WILL BE LIGHT TO MODERATE
AND SOUTH-SOUTHEASTERLY, ALLOWING FOR CONTINUAL ADVECTION OF GULF
MOISTURE THROUGHOUT THE WEEK.
HEAT RISK IS ALSO A CONCERN THROUGHOUT THE FORECAST PERIOD, AS
TEMPERATURES ARE EXPECTED TO CLIMB INTO THE UPPER 90S/LOWER 100S
EVERY DAY THIS WEEKEND INTO NEXT WEEK. IN ADDITION, HEAT INDICES
WILL BE EVEN HIGHER DUE TO HUMIDITY, WITH VALUES SLOWLY INCREASING
THROUGH THE END OF NEXT WEEK. MODERATE HEAT RISK (LEVEL 2 OF 4) IS
EXPECTED THROUGHOUT DEEP SOUTH TEXAS THIS WEEKEND INTO EARLY NEXT
WEEK AND WILL INCREASE TO A MAJOR HEAT RISK (LEVEL 3 OF 4) BY THE
MIDDLE OF NEXT WEEK. WHEN THIS OCCURS, SPECIAL WEATHER STATEMENTS OR
HEAT ADVISORIES MAY BECOME NECESSARY. LOW TEMPERATURES WILL BE IN
THE UPPER 70S AND EVEN THE LOWER 80S FOR PORTIONS OF THE LOWER RIO
GRANDE VALLEY.
AVIATION
(00Z TAFS)
ISSUED AT 600 PM CDT FRI AUG 8 2025
VFR CONDITIONS ARE EXPECTED THROUGH THE TAF PERIOD. MODERATE
SOUTHEASTERLY WINDS WILL BECOME LIGHT THIS EVENING INTO THE
OVERNIGHT.
MARINE
ISSUED AT 1206 PM CDT FRI AUG 8 2025
FAVORABLE MARINE CONDITIONS ARE EXPECTED THROUGHOUT THIS WEEKEND
INTO NEXT WEEK WITH LOW WAVE HEIGHTS (BETWEEN 1-3 FEET) AND GENTLE
TO MODERATE SOUTH-SOUTHEASTERLY WINDS. WIND SPEEDS SHOULD REMAIN
BELOW SMALL CRAFT ADVISORY AND SMALL CRAFT EXERCISE CAUTION
CRITERIA THROUGHOUT THE WEEK. THERE IS A SMALL (UP TO 20%) CHANCE
OF SOME ISOLATED SHOWERS/THUNDERSTORMS OVER THE GULF WATERS AND
THE BAY THROUGHOUT THE WEEK.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 79 96 78 95 / 0 20 10 20
HARLINGEN 75 98 74 98 / 0 20 10 20
MCALLEN 78 102 78 101 / 0 10 10 20
RIO GRANDE CITY 77 103 77 102 / 0 10 10 10
SOUTH PADRE ISLAND 81 89 80 89 / 0 10 10 20
BAYVIEW/PORT ISABEL 78 93 77 93 / 0 10 10 20
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
DISCUSSION...55
AVIATION...68
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