680
FXUS64 KBRO 051107 AAA
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
607 AM CDT WED AUG 5 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 606 AM CDT WED AUG 5 2026
- HEAT INDICES BETWEEN 105-110F, AND LOCALLY HIGHER, ARE EXPECTED
EACH AFTERNOON. HEAT ADVISORIES MAY BE NEEDED.
- MODERATE (LEVEL 2 OUT OF 4) TO MAJOR (LEVEL 3 OUT OF 4) HEAT
RISK WILL CONTINUE THROUGH AT LEAST THURSDAY.
- LOW (LESS THAN 25 PERCENT) CHANCE OF ISOLATED SHOWERS AND
THUNDERSTORMS ALONG THE SEA BREEZE EACH AFTERNOON.
DISCUSSION
ISSUED AT 1003 PM CDT TUE AUG 4 2026
THE PERSISTENT RIDGE OF HIGH PRESSURE ACROSS THE DESERT SW
STRENGTHENS THROUGH THE WEEK, ALLOWING WEAKER PRESSURE AND
MOISTURE TO SETTLE ALONG THE COAST. EXPECT WARM AND BREEZY
CONDITIONS TO CONTINUE WITH ABOVE NORMAL TEMPERATURES ACROSS DEEP
SOUTH TEXAS THROUGH THE FORECAST PERIOD. THERE IS A LOW (25
PERCENT OR LESS) CHANCE OF SHOWERS OR THUNDERSTORMS ALONG THE SEA
BREEZE EACH AFTERNOON INTO NEXT WEEK.
THE HIGHEST HEAT INDICES EACH AFTERNOON ARE EXPECTED TO RANGE FROM
105 TO 110 DEGREES, WITH A FEW LOCATIONS BRIEFLY TOPPING 111
DEGREES BEHIND THE SEA BREEZE EACH AFTERNOON. HEAT ADVISORIES MAY
BE NEEDED. THERE IS A MODERATE (LEVEL 2 OF 4) TO MAJOR (LEVEL 3 OF
4) HEAT RISK EACH AFTERNOON, ESPECIALLY THROUGH THURSDAY, WITH
LITTLE TO NO RELIEF EACH NIGHT.
AVIATION
(12Z TAFS)
ISSUED AT 606 AM CDT WED AUG 5 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 1003 PM CDT TUE AUG 4 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 81 97 80 / 10 0 10 0
HARLINGEN 99 78 100 77 / 10 0 10 0
MCALLEN 102 81 103 80 / 0 0 10 0
RIO GRANDE CITY 102 79 103 78 / 0 0 0 0
SOUTH PADRE ISLAND 89 81 89 81 / 10 10 0 0
BAYVIEW/PORT ISABEL 96 80 96 79 / 0 10 10 0
BRO WATCHES/WARNINGS/ADVISORIES
NONE.
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