971
FXUS64 KBRO 050304
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1004 PM CDT TUE AUG 4 2026
..NEW DISCUSSION, MARINE
KEY MESSAGES
UPDATED AT 1003 PM CDT TUE AUG 4 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
(00Z TAFS)
ISSUED AT 613 PM CDT TUE AUG 4 2026
VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE TAF PERIOD WITH
SOUTHEASTERLY GUSTS GRADUALLY DIMINISHING THIS EVENING BEFORE
RETURNING MID-MORNING WEDNESDAY.
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 81 96 81 97 / 0 0 10 10
HARLINGEN 78 99 78 99 / 0 0 0 20
MCALLEN 81 102 81 103 / 0 0 0 10
RIO GRANDE CITY 79 102 79 103 / 0 0 0 10
SOUTH PADRE ISLAND 81 89 81 89 / 0 0 10 10
BAYVIEW/PORT ISABEL 80 95 79 96 / 0 0 0 10
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...56-HALLMAN
LONG TERM....56-HALLMAN
AVIATION...56-HALLMAN
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