890
FXUS64 KBRO 060523 AAA
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1223 AM CDT MON JUL 6 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 1222 AM CDT MON JUL 6 2026
- DAYTIME HIGH TEMPERATURES IN THE MID-TO-UPPER 90S AND LOWER
100S, OVERNIGHT LOWS IN THE UPPER 70S AND LOWER 80S AS WELL AS
AFTERNOON HEAT INDICES OF AROUND 100-110 F CONTINUE.
- BREEZY ONSHORE WINDS (GUSTS TO 25-30+ MPH) RETURN LATER IN THE
WEEK, BUILDING MOISTURE CONTENT AND INCREASING HEAT RISKS FROM
MINOR AND MODERATE (LEVELS 1 AND 2 OF 4) TO MAINLY MODERATE BY
THURSDAY.
- DAILY LOW (AT MOST, 15%) CHANCES OF RAIN ALONG THE DAYTIME
SEABREEZE INCREASE LATER IN THE WEEK TO AS MUCH AS POSSIBLY A
LOW TO MEDIUM (20-40%) CHANCE OVER THE WEEKEND.
- A LOW RISK OF LIFE-THREATENING RIP CURRENTS PREVAILS THROUGH
MONDAY AFTERNOON.
DISCUSSION
ISSUED AT 1014 PM CDT SUN JUL 5 2026
MUCH OF THE SAME WEATHER PATTERN AND CONDITIONS ARE LIKELY TO HOLD
ACROSS DEEP SOUTH TEXAS THROUGH WEDNESDAY, REMAINING MOSTLY DRY,
WITH NEAR TO SLIGHTLY ABOVE AVERAGE TEMPERATURES AND SOMEWHAT BREEZY
CONDITIONS; HIGHS IN THE MID 80S AT THE COAST, UPPER 90S INLAND AND
LOWER 100S ACROSS THE UPPER RGV AND PORTIONS OF THE MIDDLE RGV
CONTINUE ALONG WITH A GENTLE TO MODERATE SOUTHEASTERLY BREEZE,
GUSTING TO 15-25 MPH IN THE AFTERNOON. A BRIEF ISOLATED SHOWER OR
TWO ALONG THE AFTERNOON SEABREEZE IS POSSIBLE, BUT CHANCES OF RAIN
ARE GENERALLY LOW, AT MOST, AROUND 10-15%. AFTERNOON HEAT INDICES OF
AROUND 100-110 F ARE ANTICIPATED OVER THE NEXT 7 DAYS, WITH HEAT
RISKS RANGING FROM MOSTLY MINOR ACROSS THE NORTHERN RANCHLANDS TO
MODERATE OVER THE RGV THROUGH WEDNESDAY. OVERNIGHT LOWS IN THE MID-
TO-UPPER 70S INLAND AND LOWER 80S ALONG/NEAR THE COAST PERSIST.
MEANWHILE, GLOBAL MODELS INDICATE WEAK TROUGHING ALOFT EXPANDING
ACROSS MEXICO AND OUR REGION THROUGH THE MIDDLE PART OF THIS WEEK,
FURTHER DEEPENING INTO THE WEEKEND. AT THE SURFACE, A TIGHTENING
PRESSURE GRADIENT RESULTS IN BREEZIER ONSHORE SOUTHEASTERLY WINDS,
GUSTING TO 25-30+ MPH, ADVECTING A PLUME OF DEEP/TROPICAL GULF
MOISTURE INLAND AND RISING PWAT VALUES TO 2.0+ IN., POTENTIALLY BY
THURSDAY. THIS COMBINATION IS ANTICIPATED TO RESULT IN MAINLY
MODERATE HEAT RISKS BY THURSDAY AS WELL AS INCREASE RAIN CHANCES
FROM SHOWERS AND THUNDERSTORMS ALONG THE SEABREEZE FROM A LOW (15-
30%) CHANCE ON THURSDAY TO AS MUCH AS A LOW TO MEDIUM (20-40%)
CHANCE OVER THE WEEKEND AS SHOWER AND THUNDERSTORM ACTIVITY BECOMES
MORE NUMEROUS. LOWER CHANCES OF RAIN COULD LINGER INTO NEXT MONDAY
AS WEAK HIGH PRESSURE ALOFT MAY BEGIN TO RESUME. DUE TO ABOVE
AVERAGE MOISTURE CONTENT, THERE EXISTS THE POSSIBILITY OF HEAVY
RAIN, ESPECIALLY WITHIN THE DEEPEST OF CONVECTION. ADDITIONALLY, AS
MOISTURE AND CLOUDS BUILD, HIGH TEMPERATURES ARE ANTICIPATED TO EASE
OFF A FEW DEGREES BY THURSDAY, LEADING TO MID/UPPER 90S INLAND WHILE
MID 80S CONTINUE AT THE COAST.
A LOW RISK OF LIFE-THREATENING RIP CURRENTS CONTINUES THROUGH MONDAY
AFTERNOON.
AVIATION
(06Z TAFS)
ISSUED AT 1222 AM CDT MON JUL 6 2026
LIGHT SOUTHEAST WINDS WITH MOSTLY CLEAR SKIES PREVAIL ACROSS DEEP
SOUTH TEXAS EARLY THIS MORNING. LIGHT WINDS OVERNIGHT WILL INCREASE
AND BECOME GUSTY LATER THIS MORNING INTO THE AFTERNOON. VFR CONDITIONS
ARE EXPECTED FOR THE NEXT 24 HOURS.
MARINE
ISSUED AT 1014 PM CDT SUN JUL 5 2026
GENTLE TO MODERATE, FRESH AT TIMES, SOUTHEASTERLY WINDS AND SLIGHT
TO MODERATE (1-3 FT) SEAS CONTINUE THROUGH TUESDAY NIGHT BEFORE
INCREASING BACK TO MODERATE TO FRESH, WITH POSSIBLE PERIODS OF SMALL
CRAFT EXERCISE CAUTION CONDITIONS, WEDNESDAY AND ONWARD AS A PRESSURE
GRADIENT TIGHTENS AGAIN, BUILDING SEAS TO MODERATE (2-4 FT). MOISTURE
ARRIVING TO THE LOWER TEXAS COASTAL WATERS COULD BRING A LOW TO MEDIUM
(20-40%) CHANCE OF RAIN AND THUNDERSTORMS TUESDAY AND AGAIN BY
THURSDAY, BECOMING MORE WIDESPREAD OVER THE WEEKEND.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 95 80 95 80 / 0 0 0 0
HARLINGEN 96 76 96 76 / 10 0 10 0
MCALLEN 101 79 100 79 / 0 0 10 0
RIO GRANDE CITY 101 78 101 77 / 0 0 0 0
SOUTH PADRE ISLAND 88 81 88 81 / 0 0 10 0
BAYVIEW/PORT ISABEL 92 79 93 78 / 0 0 10 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...65-IRISH
LONG TERM....65-IRISH
AVIATION...63-KC
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page