198
FXUS64 KBRO 271821
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
121 PM CDT MON JUL 27 2026
..NEW DISCUSSION, MARINE
KEY MESSAGES
UPDATED AT 116 PM CDT MON JUL 27 2026
- RAIN FREE CONDITIONS WILL PREVAIL THROUGH NEXT WEEKEND.
- TEMPERATURES AND HEAT INDICES IN THE TRIPLE DIGITS WILL LEAD TO
GENERALLY A MAJOR HEAT RISK THIS WEEK. HEAT ADVISORIES MAY BE NEEDED,
ESPECIALLY LATER IN THE WEEK.
- A MODERATE RISK OF RIP CURRENTS ALONG THE LOWER TEXAS BEACHES
THROUGH TUESDAY.
DISCUSSION
ISSUED AT 116 PM CDT MON JUL 27 2026
HOT AND RAIN FREE CONDITIONS WILL CONTINUE THROUGH THE FORECAST
PERIOD THANKS TO UPPER-LEVEL RIDGING CENTERED OVER THE CENTRAL PLAINS.
HEAT WILL BE THE MAIN FOCUS THIS WEEK AS AFTERNOON TEMPERATURES WILL
RISE INTO THE UPPER 90S ALONG THE COAST TO THE 100S INLAND. HEAT
INDEX VALUES ARE FORECAST TO GENERALLY PEAK AROUND 110-115 DEGREES
EACH AFTERNOON. HAVE HELD OF ON A HEAT ADVISORY FOR TUESDAY AS
CURRENT FORECAST INDICATES WE WILL REMAIN JUST SHY OF CRITERIA.
HOWEVER, HEAT ADVISORIES WILL BECOME INCREASINGLY LIKELY AS THE WEEK
PROGRESSES, PRIMARILY ACROSS THE COASTAL COUNTIES AND THE RIO GRANDE
VALLEY.
THE COMBINATION OF HIGH AFTERNOON TEMPERATURES AND HUMIDITY WILL
LEAD TO A MAJOR HEAT RISK (LEVEL 3 OF 4) ACROSS MOST OF DEEP SOUTH
TEXAS THIS WEEK. LATER THIS WEEK PORTIONS THE RIO GRANDE VALLEY INTO
THE COASTAL COUNTIES MAY SEE AN EXTREME HEAT RISK (LEVEL 4 OF 4).
AT AREA BEACHES THERE IS A MODERATE RISK OF RIP CURRENTS THROUGH
TUESDAY.
AVIATION
(18Z TAFS)
ISSUED AT 1204 PM CDT MON JUL 27 2026
VFR CONDITIONS WILL PREVAIL DURING THE TAF PERIOD. SOUTHEASTERLY
WINDS WILL GUST UP TO 25 KTS THIS AFTERNOON, DECREASING OVERNIGHT.
MARINE
ISSUED AT 116 PM CDT MON JUL 27 2026
AN ENHANCED PRESSURE GRADIENT ALONG THE WILL RESULT IN DAILY
SMALL CRAFT EXERCISE CAUTION CONDITIONS ALONG THE LAGUNA MADRE AND
NEARSHORE GULF WATERS. OTHERWISE, EXPECT LIGHT TO MODERATE
SOUTHEASTERLY WINDS WITH 3 TO 4 FT SEAS AND 4 TO 6 SECOND PERIODS.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 81 96 82 97 / 0 0 0 0
HARLINGEN 78 99 79 100 / 0 0 0 0
MCALLEN 80 102 81 103 / 0 0 0 0
RIO GRANDE CITY 78 104 80 104 / 0 0 0 0
SOUTH PADRE ISLAND 81 88 82 89 / 0 0 0 0
BAYVIEW/PORT ISABEL 79 95 80 95 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...68
LONG TERM....68
AVIATION...68
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