816
FXUS64 KBRO 041105 AAA
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
605 AM CDT TUE AUG 4 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 605 AM CDT TUE AUG 4 2026
- HEAT INDICES BETWEEN 105-110F, AND LOCALLY HIGHER, ARE EXPECTED
EACH DAY. HEAT ADVISORIES MAY BE NEEDED.
- MODERATE (LEVEL 2 OUT OF 4) TO MAJOR (LEVEL 3 OUT OF 4) HEAT
RISK WILL CONTINUE INTO NEXT WEEK.
- THERE IS A LOW (10 TO 20 PERCENT) CHANCE OF ISOLATED SHOWERS
AND THUNDERSTORMS ALONG THE SEA BREEZE EACH AFTERNOON,
ESPECIALLY LATE WEEK THROUGH THE WEEKEND.
DISCUSSION
ISSUED AT 1012 PM CDT MON AUG 3 2026
THE PERSISTENT RIDGE OF HIGH PRESSURE ACROSS THE DESERT SW
STRENGTHENS THROUGH THE WEEK, ALLOWING WEAKER PRESSURE TO
GRADUALLY BUILD ALONG THE COAST LATE WEEK THROUGH THE WEEKEND,
INCREASING HUMIDITY. THIS WILL MAINTAIN ABOVE NORMAL TEMPERATURES
ACROSS DEEP SOUTH TEXAS THROUGH THE FORECAST PERIOD WITH A LOW
(LESS THAN 10 TO 20 PERCENT) CHANCE OF SHOWERS OR THUNDERSTORMS
ALONG THE SEA BREEZE EACH AFTERNOON THURSDAY THROUGH NEXT MONDAY.
THE HIGHEST HEAT INDICES ARE EXPECTED TO OCCUR BEHIND THE SEA
BREEZE EACH AFTERNOON AS IT INCREASES HUMIDITY FROM EAST TO WEST,
NEARING OR BRIEFLY TOPPING 110 DEGREES, POTENTIALLY JUST REACHING
OR FALLING SHY OF HEAT ADVISORY CRITERIA. THERE IS A MODERATE
(LEVEL 2 OF 4) TO MAJOR (LEVEL 3 OF 4) HEAT RISK EACH AFTERNOON
WITH LITTLE TO NO RELIEF EACH NIGHT.
AVIATION
(12Z TAFS)
ISSUED AT 605 AM CDT TUE AUG 4 2026
MVFR TO VFR WILL PREVAIL AT THE AERODROMES THROUGH THE NEXT 24
HOURS. GENERALLY PARTLY CLOUDY SKIES WILL BE ACCOMPANIED BY LIGHT
WINDS AT NIGHT AND BREEZY WINDS DURING THE DAYTIME WITH HIGHER
GUSTS.
MARINE
ISSUED AT 1012 PM CDT MON AUG 3 2026
LIGHT TO MODERATE SOUTHEASTERLY WINDS CONTINUE GENERALLY FAVORABLE
MARINE CONDITIONS ALONG THE LOWER TEXAS COAST WITH SEAS OF 3 FEET
OR LESS. PERIODIC SMALL CRAFT CAUTION CONDITIONS ARE EXPECTED
ALONG THE BAY EACH AFTERNOON DUE TO SOUTHEASTERLY WIND GUSTS.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 97 82 97 81 / 0 0 0 0
HARLINGEN 100 78 100 78 / 0 0 0 0
MCALLEN 101 82 102 81 / 0 0 0 0
RIO GRANDE CITY 102 79 102 79 / 0 0 0 0
SOUTH PADRE ISLAND 89 81 89 81 / 0 0 0 0
BAYVIEW/PORT ISABEL 96 80 96 79 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
NONE.
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