219
FXUS64 KBRO 230329
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1029 PM CDT MON JUN 22 2026
..NEW DISCUSSION, MARINE
KEY MESSAGES
UPDATED AT 1026 PM CDT MON JUN 22 2026
- A MODERATE HEAT RISK (LEVEL 2 OF 4) AND HEAT INDICES OF 105-110
F ON TUESDAY REDUCE TO MINOR (LEVEL 1 OF 4) TO MODERATE WITH
INDICES OF 100-108 F WEDNESDAY AND THURSDAY BEFORE INCREASING
BACK TO 105-110 F WITH MODERATE HEAT RISKS OVER THE WEEKEND.
- SEASONABLY HOT TEMPERATURES AND DRY CONDITIONS ARE EXPECTED.
- THERE IS A MEDIUM RISK OF LIFE-THREATENING RIP CURRENTS
THROUGH TUESDAY AFTERNOON.
- ADVERSE MARINE CONDITIONS CONTINUE A SMALL CRAFT ADVISORY UNTIL
1 AM TUESDAY, FOLLOWED BY IMPROVING CONDITIONS.
DISCUSSION
ISSUED AT 1026 PM CDT MON JUN 22 2026
ANOTHER BREEZY DAY IS EXPECTED ON TUESDAY, WITH SOUTHEASTERLY WINDS
GUSTING TO AROUND 25-30+ MPH, MAINTAINING MOISTURE ADVECTION OFF THE
GULF, LEADING TO A MODERATE HEAT RISK AND HEAT INDICES OF 105-110 F.
MEANWHILE, HIGH PRESSURE ALOFT, CENTERED OVER THE DESERT SOUTHWEST
AND NORTHERN MEXICO, MAXIMIZES AND STRETCHES FURTHER EAST ACROSS THE
PLAINS WEDNESDAY INTO THURSDAY, WEAKENING SOUTHEASTERLY ONSHORE
FLOW, GUSTING TO 20-25 MPH; SOMEWHAT DRIER RELATIVE HUMIDITY LIMITS
HEAT INDICES TO 100-108 F WITH MODERATE HEAT RISKS ACROSS THE
LOWER/MIDDLE RGV AND MINOR ELSEWHERE WEDNESDAY AND THURSDAY. HIGH
PRESSURE ALOFT DIMINISHES CONSIDERABLY OVER THE WEEKEND, RISING
HEAT INDICES TO 105-110 F AND ELEVATING HEAT RISKS TO MEDIUM BY
FRIDAY AS BREEZIER SOUTHEASTERLY WINDS REBUILD LOW-LEVEL MOISTURE
CONTENT. TEMPERATURES REMAIN AVERAGE FOR THIS TIME OF YEAR,
MAXIMIZING IN THE UPPER 90S ACROSS THE UPPER RGV AND RIO GRANDE
PLAINS WHILE RISING TO THE MID 90S ELSEWHERE AND MINIMIZING IN THE
UPPER 70S INLAND AND LOWER 80S NEAR THE COAST OVERNIGHT. DRY
CONDITONS CONTINUE.
THERE IS A MEDIUM RISK OF LIFE-THREATENING RIP CURRENTS THROUGH
TUESDAY AFTERNOON.
AVIATION
(00Z TAFS)
ISSUED AT 603 PM CDT MON JUN 22 2026
GUSTY SOUTHEASTERLY WINDS (13-18 KNOTS, GUSTING TO 25-30 KNOTS)
CONTINUE OVER THE NEXT SEVERAL HOURS, EASING SLIGHTLY LATE THIS
EVENING AND DIMINISHING FURTHER IN THE PRE-DAWN OR DAWN HOURS
EARLY TUESDAY MORNING. BREEZY SOUTHEASTERLY WINDS RETURN
THROUGHOUT TUESDAY MORNING THOUGH PERHAPS NOT AS STRONG TODAY,
WITH GUSTS UP TO 25 KNOTS LIKELY. VFR CONDITIONS PREVAIL.
MARINE
ISSUED AT 1026 PM CDT MON JUN 22 2026
FRESH TO STRONG SOUTH-SOUTHEASTERLY WINDS MAINTAIN A SMALL CRAFT
ADVISORY (SCA) ACROSS THE LAGUNA MADRE AND GULF WATERS (0-60 NM
OFFSHORE) UNTIL 1 AM TUESDAY. MEANWHILE, THE PRESSURE GRADIENT
BEGINS TO LOOSEN LATE TONIGHT, LIKELY TRANSITIONING TO SMALL CRAFT
EXERCISE CAUTIONS (SCEC) HEADLINES INTO AT LEAST TUESDAY MORNING.
MOSTLY MODERATE SOUTHEASTERLY WINDS AND MODERATE (3-5 FT) SEAS
RESUME BY TUESDAY AFTERNOON OR EVENING. A TIGHTENING PRESSURE
GRADIENT RETURNS OVER THE WEEKEND, WITH MODERATE TO FRESH, OR EVEN
STRONG, SOUTHEASTERLY WINDS BUILDINGS SEAS; SCEC IS LIKELY, PERHAPS
SCA AS WELL.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 81 94 80 93 / 0 0 0 0
HARLINGEN 78 94 77 94 / 0 0 0 0
MCALLEN 80 95 79 95 / 0 0 0 0
RIO GRANDE CITY 78 97 77 97 / 0 0 0 0
SOUTH PADRE ISLAND 82 88 82 87 / 0 0 0 0
BAYVIEW/PORT ISABEL 80 92 79 91 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 1 AM CDT TUESDAY FOR GMZ130-132-135-
150-155-170-175.
SHORT TERM...65-IRISH
LONG TERM....65-IRISH
AVIATION...65-IRISH
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