119
FXUS64 KBRO 020405
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1105 PM CDT SAT AUG 1 2026
..NEW DISCUSSION, MARINE
KEY MESSAGES
UPDATED AT 1100 PM CDT SAT AUG 1 2026
- A HEAT ADVISORY IS IN EFFECT FOR INLAND TO COASTAL KENEDY,
WILLACY, AND CAMERON COUNTIES FROM 11 AM TO 6 PM SUNDAY FOR HEAT
INDICES BETWEEN 110-113 DEGREES.
- HOT, BREEZY CONDITIONS WILL CONTINUE THROUGH TUESDAY WITH HEAT
INDICES BETWEEN 103-113 AND A MAJOR TO EXTREME RISK OF HEAT
RELATED ILLNESS.
- LOW TO MEDIUM (15 TO 35%) CHANCE OF ISOLATED SHOWERS AND
THUNDERSTORMS ON SUNDAY, MAINLY WEST OF US281.
DISCUSSION
ISSUED AT 1100 PM CDT SAT AUG 1 2026
THE PERSISTENT RIDGE OF HIGH PRESSURE ACROSS THE DESERT SW
REMAINS GENERALLY PARKED THROUGH MUCH OF THE WEEK, PIVOTING
SLIGHTLY WESTWARD TO THE PACIFIC COAST. THIS WILL MAINTAIN ABOVE
NORMAL TEMPERATURES ACROSS DEEP SOUTH TEXAS THROUGH THE FORECAST
PERIOD BUT ALSO ALLOW HUMIDITY TO INCREASE ALONG THE LOWER TEXAS
COAST WITH WEAKER PRESSURE. THERE IS A MAJOR (LEVEL 3 OF 4) TO
EXTREME (LEVEL 4 OF 4) HEAT RISK EVERY AFTERNOON INTO AT LEAST
TUESDAY, WITH LITTLE TO NO RELIEF EACH NIGHT.
A WEAK FRONTAL BOUNDARY DIPS SOUTH SUNDAY AFTERNOON, COMBINING
WITH THE HEAT OF THE DAY AND ANY CONVERGENCE WITH THE SEA BREEZE
TO POTENTIALLY KICK UP SCATTERED SHOWERS AND THUNDERSTORMS INTO
EARLY SUNDAY EVENING, ESPECIALLY ALONG AND WEST OF US281/I69C.
INTO NEXT WEEK, EXPECT A LOW, BUT GRADUALLY INCREASING, CHANCE OF
SHOWERS OR THUNDERSTORMS ALONG THE SEA BREEZE, ESPECIALLY BY
THURSDAY INTO NEXT WEEKEND.
SPECIAL WEATHER STATEMENTS WILL LIKELY BE NEEDED EACH AFTERNOON,
WITH PERIODIC HEAT ADVISORIES, MAINLY ALONG THE COAST DURING THE
SEA BREEZE EACH AFTERNOON, AS THE HUMIDITY INCREASES. WILL ISSUE
A HEAT ADVISORY FOR INLAND TO COASTAL KENEDY, WILLACY, AND CAMERON
COUNTIES FROM 11 AM TO 6 PM AND LET THE NEXT SHIFTS DETERMINE THE
BEST LOCATIONS FOR SPECIAL WEATHER STATEMENTS.
AVIATION
(18Z TAFS)
ISSUED AT 1217 PM CDT SAT AUG 1 2026
VFR CONDITIONS PREVAIL THROUGH THE TAF CYCLE. HOT TEMPERATURES IN
THE TRIPLE DIGITS WITH GUSTY SOUTH-SOUTHEASTERLY WINDS WILL
CONTINUE THROUGH THE AFTERNOON AND EVENING. WINDS DIMINISH
OVERNIGHT.
MARINE
ISSUED AT 1100 PM CDT SAT AUG 1 2026
LIGHT TO MODERATE SOUTHERLY AND SOUTHEASTERLY WINDS CONTINUE
GENERALLY FAVORABLE MARINE CONDITIONS ALONG THE LOWER TEXAS COAST
WITH SEAS OF 3 FEET OR LESS.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 80 99 79 98 / 0 10 0 0
HARLINGEN 77 102 76 102 / 0 10 0 0
MCALLEN 81 105 80 105 / 0 10 0 0
RIO GRANDE CITY 79 104 79 105 / 0 10 10 0
SOUTH PADRE ISLAND 80 89 80 89 / 0 0 0 0
BAYVIEW/PORT ISABEL 79 97 78 97 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...HEAT ADVISORY FROM 11 AM TO 6 PM CDT SUNDAY FOR TXZ251-254-255-
351-354-355.
GM...NONE.
SHORT TERM...56-HALLMAN
LONG TERM....56-HALLMAN
AVIATION...56-HALLMAN
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