910
FZUS54 KBRO 270738
CWFBRO
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST
NATIONAL WEATHER SERVICE BROWNSVILLE TX
238 AM CDT SUN SEP 27 2026
LOWER TEXAS COASTAL WATERS FROM BAFFIN BAY TO THE MOUTH OF THE
RIO GRANDE OUT 60 NM.
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST
1/3 OF THE WAVES, ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE
HIGHEST 10 PERCENT OF THE WAVES.
GMZ100-272100-
238 AM CDT SUN SEP 27 2026
SYNOPSIS
FAVORABLE MARINE CONDITIONS WILL OCCUR ALONG THE LOWER
TEXAS COAST THROUGH THE NEXT SEVERAL DAYS WITH LIGHT TO MODERATE
WINDS AND LOW TO MODERATE SEAS IN PLACE. MORE ADVERSE WINDS AND
SEAS EARLY NEXT WEEK MAY RESULT IN SMALL CRAFT SHOULD EXERCISE
CAUTION OR SMALL CRAFT ADVISORY BEGINNING TUESDAY NIGHT.
GMZ130-132-135-272100-
LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO-
LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT
MANSFIELD TX-
LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX-
238 AM CDT SUN SEP 27 2026
TODAY
SOUTH WINDS AROUND 5 KNOTS, BECOMING SOUTHEAST LATE THIS
MORNING, THEN BECOMING EAST THIS AFTERNOON. A LIGHT CHOP ON THE
BAY.
TONIGHT
SOUTHEAST WINDS AROUND 10 KNOTS, BECOMING 5 TO 10
KNOTS AFTER MIDNIGHT. A LIGHT CHOP ON THE BAY.
MONDAY
SOUTH WINDS AROUND 5 KNOTS, BECOMING SOUTHEAST LATE IN
THE MORNING, THEN BECOMING EAST EARLY IN THE AFTERNOON,
INCREASING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. A LIGHT CHOP
ON THE BAY, INCREASING TO A MODERATE CHOP ON THE BAY IN THE
AFTERNOON.
MONDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING AROUND
10 KNOTS EARLY IN THE MORNING. A MODERATE CHOP ON THE BAY,
DIMINISHING TO A LIGHT CHOP ON THE BAY EARLY IN THE MORNING.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO
20 KNOTS LATE IN THE AFTERNOON. A MODERATE CHOP ON THE BAY,
INCREASING TO CHOPPY BAY WATERS LATE IN THE AFTERNOON. A SLIGHT
CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY BAY WATERS.
A SLIGHT CHANCE OF SHOWERS EARLY IN THE EVENING.
WEDNESDAY
SOUTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO 20 TO
25 KNOTS IN THE AFTERNOON. ROUGH BAY WATERS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY BAY
WATERS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE
EVENING. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT.
THURSDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY BAY WATERS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
THURSDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP
ON THE BAY. A CHANCE OF THUNDERSTORMS IN THE EVENING. SHOWERS
LIKELY. A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ150-155-272100-
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
238 AM CDT SUN SEP 27 2026
TODAY
SOUTH WINDS AROUND 5 KNOTS, BECOMING EAST EARLY THIS
AFTERNOON, THEN INCREASING TO 5 TO 10 KNOTS LATE THIS AFTERNOON.
SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT 6 SECONDS.
TONIGHT
EAST WINDS AROUND 10 KNOTS, BECOMING SOUTHEAST AFTER
MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT
6 SECONDS.
MONDAY
SOUTH WINDS AROUND 5 KNOTS, BECOMING EAST LATE IN THE
AFTERNOON. SEAS 1 TO 2 FEET. WAVE DETAIL: EAST 2 FEET AT
6 SECONDS.
MONDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING AROUND
10 KNOTS EARLY IN THE MORNING. SEAS 2 TO 3 FEET. WAVE DETAIL:
EAST 3 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS EARLY IN THE
MORNING.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS
EARLY IN THE MORNING, THEN A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO
5 FEET. WAVE DETAIL: SOUTHEAST 5 FEET AT 6 SECONDS.
WEDNESDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO
6 FEET, OCCASIONALLY TO 8 FEET. A SLIGHT CHANCE OF THUNDERSTORMS.
A SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF
SHOWERS AFTER MIDNIGHT.
THURSDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET, SUBSIDING TO 4 TO 5 FEET IN THE
AFTERNOON. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
THURSDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO
5 FEET. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING,
THEN SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
GMZ170-175-272100-
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM
20 TO 60 NM-
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM
20 TO 60 NM-
238 AM CDT SUN SEP 27 2026
TODAY
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST THIS
AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT
6 SECONDS.
TONIGHT
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST AFTER
MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT
6 SECONDS.
MONDAY
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST IN THE
AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT
6 SECONDS.
MONDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: EAST 3 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 5 SECONDS. A SLIGHT CHANCE OF
THUNDERSTORMS. A CHANCE OF SHOWERS UNTIL LATE AFTERNOON, THEN A
SLIGHT CHANCE OF SHOWERS LATE IN THE AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO
20 TO 25 KNOTS EARLY IN THE MORNING. SEAS 3 TO 4 FEET, BUILDING
TO 4 TO 6 FEET, OCCASIONALLY TO 8 FEET AFTER MIDNIGHT. WAVE
DETAIL: SOUTHEAST 4 FEET AT 5 SECONDS, BECOMING SOUTHEAST 6 FEET
AT 6 SECONDS. A SLIGHT CHANCE OF SHOWERS EARLY IN THE EVENING.
WEDNESDAY
SOUTHEAST WINDS 20 TO 25 KNOTS, DIMINISHING TO 15 TO
20 KNOTS IN THE AFTERNOON. SEAS 6 TO 8 FEET, OCCASIONALLY TO
10 FEET. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
WEDNESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO
7 FEET, OCCASIONALLY TO 9 FEET. A SLIGHT CHANCE OF THUNDERSTORMS.
A SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF
SHOWERS AFTER MIDNIGHT.
THURSDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
THURSDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO
6 FEET, OCCASIONALLY TO 8 FEET. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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