137
FXUS64 KBRO 240357
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1057 PM CDT THU JUL 23 2026
..NEW DISCUSSION, MARINE
KEY MESSAGES
UPDATED AT 1053 PM CDT THU JUL 23 2026
- HOT AND RAIN FREE CONDITIONS RETURN FRIDAY.
- MODERATE HEAT RISK THROUGH THE WEEKEND.
- A MODERATE RISK OF RIP CURRENTS AT AREA BEACHES FRIDAY.
DISCUSSION
ISSUED AT 1053 PM CDT THU JUL 23 2026
AS THE SHEARED OFF MOISTURE FROM BERTHA MOVES OUT OF THE AREA
TONIGHT HOT AND RAIN FREE CONDITIONS ARE FORECAST TO RETURN ACROSS
DEEP SOUTH TEXAS THROUGH THE PERIOD. THE UPPER LEVEL HIGH
PRESSURE SYSTEM OVER NORTH TEXAS LOOKS TO REMAIN IN PLACE THROUGH
THE FORECAST, CONTINUING TO SUPPORT BROAD SUBSIDENCE AND WEAK MID
LEVEL FLOW. CLEAR SKIES WILL LIKELY RETURN BY FRIDAY AFTERNOON AS
THE LAST OF THE MID-LEVEL TROPICAL MOISTURE MOVES OUT OF THE AREA.
HEAT WILL CONTINUE TO BE A CONCERN THROUGH THE PERIOD. HIGH
TEMPERATURES ARE FORECAST TO RANGE FROM THE UPPER 90S TO AROUND
100 DEGREES THROUGH THE WEEKEND, INCREASING TO 100-105 DEGREES
EARLY NEXT WEEK. HEAT INDEX VALUES WILL LIKELY PEAK BETWEEN
105-108 FRIDAY AND SATURDAY AFTERNOON, AND AROUND 110 SUNDAY
AFTERNOON. HEAT ADVISORIES AREN'T LIKELY THROUGH THE WEEKEND,
THOUGH A MODERATE HEAT RISK WILL LIKELY PERSIST ACROSS THE AREA.
HEAT INDICES ARE FORECAST TO INCREASE EARLY NEXT WEEK, ESPECIALLY
ACROSS THE COASTAL COUNTIES WHERE MOISTURE ADVECTION FROM THE
COAST COMBINES WITH HIGHER TEMPERATURES TO PUSH HEAT INDEX VALUES
BACK UP TO THE 110-114 RANGE. HEAT ADVISORIES MAY BE NEEDED EACH
AFTERNOON BEGINNING MONDAY, WITH MODERATE TO MAJOR HEAT RISK
ACROSS THE AREA.
AVIATION
(00Z TAFS)
ISSUED AT 649 PM CDT THU JUL 23 2026
ONGOING AT MFE IS FORECAST TO CONTINUE FOR THE NEXT COUPLE HOURS,
BEFORE MOVING OFF TO THE SOUTHWEST. OTHERWISE, VFR CONDITIONS ARE
FORECAST THROUGH THE PERIOD, WITH CEILINGS DISSIPATING EARLY
FRIDAY MORNING. SOUTHEASTERLY WINDS ARE FORECAST TO CONTINUE
THROUGH THE PERIOD, WITH WIND GUSTS INCREASING FRIDAY AFTERNOON.
MARINE
ISSUED AT 1053 PM CDT THU JUL 23 2026
ADVERSE MARINE CONDITIONS WILL LIKELY CONTINUE THROUGH FRIDAY
EVENING ALONG THE GULF WATERS AND LAGUNA MADRE WITH SOUTHERLY TO
SOUTHEASTERLY WINDS AROUND 15-20 KNOTS ALONG THE COAST. WINDS
SPEEDS ARE FORECAST TO DECREASE FRIDAY NIGHT AS PRESSURE GRADIENTS
WEAKEN ALLOWING FAVORABLE MARINE CONDITIONS TO RETURN THROUGH THE
WEEKEND. WIND SPEEDS ALONG THE COAST COULD INCREASE AGAIN EARLY
NEXT WEEK, POSSIBLY REQUIRING ADDITIONAL SMALL CRAFT SHOULD
EXERCISE CAUTION HEADLINES.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 81 96 80 96 / 10 0 0 0
HARLINGEN 79 98 77 97 / 30 0 0 0
MCALLEN 81 101 80 102 / 60 0 0 0
RIO GRANDE CITY 79 101 78 101 / 90 10 0 0
SOUTH PADRE ISLAND 82 88 81 88 / 10 0 0 0
BAYVIEW/PORT ISABEL 80 94 79 93 / 20 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...60-BE
LONG TERM....60-BE
AVIATION...60
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