508
FXUS64 KBRO 301730
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1230 PM CDT THU OCT 30 2025
..NEW DISCUSSION, AVIATION, MARINE
KEY MESSAGES
UPDATED AT 1230 PM CDT THU OCT 30 2025
- BELOW NORMAL TEMPERATURES WILL PREVAIL THROUGH THURSDAY NIGHT
WITH NEAR NORMAL TEMPERATURES RETURNING FRIDAY AND INTO NEXT
WEEK.
- LOW TO MEDIUM (20-40%) RAIN CHANCES SATURDAY NIGHT AS A COLD
FRONT APPROACHES THE REGION.
DISCUSSION
ISSUED AT 1230 PM CDT THU OCT 30 2025
ANOTHER AFTERNOON OF FALL-LIKE TEMPERATURES AND PLENTIFUL
SUNSHINE IS IN STORE ACROSS DEEP SOUTH TEXAS AS THE REGION REMAINS
UNDER THE INFLUENCE OF SURFACE HIGH PRESSURE. DESPITE VERY LOW
RELATIVE HUMIDITY AND DRY FUELS, FIRE WEATHER CONCERNS ARE LIMITED
DUE TO WINDS REMAINING BELOW CRITICAL THRESHOLDS. WINDS WILL
REMAIN GENERALLY AROUND OR BELOW 10 MPH, AND BECOME LIGHT AND
VARIABLE TONIGHT. IN COMBINATION WITH CLEAR SKIES, RADIATIONAL
COOLING PROCESSES SHOULD ALLOW FOR LOW TEMPERATURES TO FALL INTO
THE LOW TO MID 40S ACROSS THE NORTHERN RANCHLANDS AND IN THE UPPER
40S AND LOW 50S ALONG THE IMMEDIATE COAST AND LOWER RGV.
A WARMING TREND BEGINS TOMORROW WITH HIGHS IN THE LOW 80S REGION
WIDE AS SURFACE HIGH PRESSURE SHIFTS EAST AND SURFACE WINDS SHIFT
TOWARDS THE EAST AND SOUTHEAST AND ALLOWS FOR A GRADUAL RETURN IN
LOW LEVEL MOISTURE. TEMPERATURES ARE STILL EXPECTED TO RUN ABOUT
1-5 DEGREES BELOW NORMAL FOR LATE OCTOBER. HALLOWEEN EVENING IS
EXPECTED TO REMAIN RAIN-FREE WITH LIGHT WINDS AND TEMPERATURES IN
THE UPPER 60S AND LOW 70S BEFORE FALLING INTO THE UPPER 50S AND
LOW 60S LATE TONIGHT. ANOTHER COLD FRONT IS EXPECTED TO ARRIVE
SATURDAY NIGHT AS AN UPPER LEVEL TROUGH TRANSLATES ACROSS THE
PLAINS, WHICH WILL BRING LOW TO MEDIUM (20-40%) RAIN CHANCES
SATURDAY NIGHT INTO SUNDAY MORNING. THERE IS STILL SOME
UNCERTAINTY IN HOW MUCH MOISTURE RETURN WE SEE ACROSS THE REGION
AS THE FRONT APPROACHES, WHICH MAY LIMIT THE DEVELOPMENT OF ANY
SHOWERS OR THUNDERSTORMS. OTHERWISE, NEAR NORMAL TEMPERATURES AND
RAIN- FREE CONDITIONS ARE EXPECTED SUNDAY THROUGH EARLY NEXT WEEK.
AVIATION
(18Z TAFS)
ISSUED AT 1230 PM CDT THU OCT 30 2025
VFR WILL PREVAIL THROUGH THE FORECAST PERIOD AT ALL TAF SITES.
EXPECT LIGHT NORTH WINDS GENERALLY AROUND 5-10 KNOTS THROUGH THIS
EVENING BEFORE BECOMING LIGHT AND VARIABLE TONIGHT THROUGH EARLY
TOMORROW MORNING.
MARINE
ISSUED AT 1230 PM CDT THU OCT 30 2025
GENERALLY FAVORABLE MARINE CONDITIONS WILL PREVAIL THROUGH NEXT
WEEK WITH LOW TO MODERATE SEAS AND LIGHT TO MODERATE WINDS. A COLD
FRONT IS EXPECTED TO ARRIVE SATURDAY NIGHT, BRINGING LOW TO MEDIUM
(40-50%) RAIN CHANCES OVER THE GULF WATERS AND LAGUNA MADRE. BRIEF
SMALL CRAFT EXERCISE CAUTION CONDITIONS CANNOT BE RULED OUT.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 51 82 63 87 / 0 0 0 0
HARLINGEN 47 83 58 89 / 0 0 0 10
MCALLEN 49 85 62 91 / 0 0 0 0
RIO GRANDE CITY 47 84 57 90 / 0 0 0 0
SOUTH PADRE ISLAND 60 77 71 83 / 0 0 0 0
BAYVIEW/PORT ISABEL 54 80 63 86 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...22-GARCIA
LONG TERM....22-GARCIA
AVIATION...22-GARCIA
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