353
FXUS64 KBRO 051745
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1245 PM CDT SUN OCT 5 2025
..NEW DISCUSSION, AVIATION, MARINE
KEY MESSAGES
UPDATED AT 1245 PM CDT SUN OCT 5 2025
- COASTAL FLOOD STATEMENT IN EFFECT THROUGH MONDAY EVENING ALONG
THE LOWER TEXAS BEACHES.
- MODERATE RISK OF RIP CURRENTS THROUGH THE WEEKEND.
- ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED
EACH DAY, INCREASING IN COVERAGE MID TO LATE WEEK.
DISCUSSION
ISSUED AT 1245 PM CDT SUN OCT 5 2025
DAILY LOW (20% OR LESS) PRECIPITATION CHANCES WILL CONTINUE
THROUGH MONDAY, MAINLY ALONG AND EAST OF I-69E, AS A WEAK MID
LEVEL LOW GRADUALLY TRANSLATES FROM THE NORTH CENTRAL GULF TOWARD
TEXAS COAST. THIS MORNING’S 12Z SOUNDING MEASURED A PRECIPITABLE
WATER VALUE OF 1.32 INCHES, WHICH IS WITH JUST ABOVE THE 25TH
PERCENTILE FOR THIS TIME OF YEAR ACCORDING TO SPC’S SOUNDING
CLIMATOLOGY. LIMITED MOISTURE CONTENT SHOULD RESULT IN MOSTLY
RAIN-FREE CONDITIONS, ALTHOUGH AN ISOLATED SHOWER CANNOT BE RULED
OUT ALONG THE IMMEDIATE COAST. DETERMINISTIC AND ENSEMBLE GUIDANCE
INDICATE MORE FAVORABLE MOISTURE CONTENT WILL ARRIVE BY TUESDAY
OR WEDNESDAY, WITH PRECIPITABLE WATER VALUES EXPECTED TO RANGE
NEAR OR ABOVE THE 75TH PERCENTILE AS SOUTHEASTERLY FLOW TRANSPORTS
RICH, GULF MOISTURE. IN COMBINATION WITH DIURNAL INSTABILITY AND
THE SEA BREEZE, LOW TO MEDIUM (30-60%) RAIN CHANCES ARE EXPECTED
EACH DAY TUESDAY THROUGH THE END OF THE WEEK REGION WIDE. THE
HIGHEST RAIN CHANCES WILL RESIDE CLOSER TO THE IMMEDIATE COAST,
COINCIDING WITH THE HIGHEST MOISTURE CONTENT. OTHERWISE, EXPECT
NEAR TO SLIGHTLY ABOVE NORMAL TEMPERATURES THROUGHOUT THE WEEK,
WITH A MINOR (LEVEL 1 OF 4) TO MODERATE (LEVEL 2 OF 4) HEAT RISK.
THE COASTAL FLOOD STATEMENT WAS EXTENDED THROUGH MONDAY EVENING
BASED ON OBSERVATIONS SEEN FROM WEBCAMS ALONG THE SOUTH PADRE
ISLAND BEACHES. THE COMBINATION OF LONG-PERIOD SWELL AND
PROXIMITY TO THE FULL MOON AND ASSOCIATED ASTRONOMICAL HIGH TIDES
WILL RESULT IN NARROW BEACHES NEAR HIGH TIDE CYCLES. HIGH TIDE IS
EXPECTED AT 2:06 PM CDT THIS AFTERNOON, 2:46 AM CDT MONDAY
MORNING, AND 3:33 PM CDT MONDAY AFTERNOON.
AVIATION
(18Z TAFS)
ISSUED AT 1245 PM CDT SUN OCT 5 2025
VFR WILL PREVAIL THROUGH THE FORECAST PERIOD AT ALL TAF SITES.
ISOLATED SHOWERS MAY DEVELOP THIS AFTERNOON AND EVENING, BUT
CONFIDENCE IS TOO LOW TO WARRANT A MENTION WITH THIS TAF ISSUANCE.
MARINE
ISSUED AT 1245 PM CDT SUN OCT 5 2025
A WEAK MID LEVEL LOW PRESSURE OVER THE NORTH CENTRAL GULF IS
EXPECTED TO GRADUALLY MOVE NORTHWESTWARD OVER THE NEXT DAY OR TWO
AND MOVE INLAND ALONG THE TEXAS COAST BY MONDAY. EXPECT LIGHT TO
MODERATE WINDS AND LOW TO MODERATE SEAS THROUGHOUT THE FORECAST
PERIOD, WITH SEAS OF 3-5 FEET OVER THE GULF WATERS THROUGH THE
WEEKEND AND 2-4 FEET NEXT WEEK. DAILY LOW TO MEDIUM (20-50%) RAIN
CHANCES RETURN BY TUESDAY AND CONTINUE THROUGHOUT THE WEEK.
LOCALLY ENHANCED WINDS AND SEAS ARE LIKELY WITHIN ANY SHOWERS OR
THUNDERSTORMS.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 92 75 93 77 / 10 0 10 10
HARLINGEN 93 71 95 72 / 10 0 10 10
MCALLEN 97 75 99 77 / 0 0 0 10
RIO GRANDE CITY 96 71 99 73 / 0 0 0 10
SOUTH PADRE ISLAND 86 79 88 80 / 10 10 10 20
BAYVIEW/PORT ISABEL 89 73 91 76 / 10 0 10 10
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...22-GARCIA
LONG TERM....22-GARCIA
AVIATION...22-GARCIA
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