510
FZUS54 KBRO 200533
CWFBRO
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1233 AM CDT FRI MAR 20 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.
GMZ100-201815-
1233 AM CDT FRI MAR 20 2026
SYNOPSIS
LIGHT TO MODERATE SOUTHEASTERLY WINDS AND LOW TO
MODERATE SEAS WILL PREVAIL ALONG THE LOWER TEXAS COAST UNDER THE
INFLUENCE OF HIGH PRESSURE. A MODERATE CHOP IS EXPECTED ON THE BAY
EACH AFTERNOON.
GMZ130-132-135-201815-
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-
1233 AM CDT FRI MAR 20 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST EARLY THIS
AFTERNOON, THEN INCREASING TO 10 TO 15 KNOTS LATE THIS AFTERNOON.
LIGHT CHOP ON THE BAY, INCREASING TO A MODERATE CHOP LATE THIS
AFTERNOON.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS, BECOMING AROUND 10 KNOTS
EARLY IN THE MORNING. A MODERATE CHOP ON THE BAY, DIMINISHING TO
LIGHT CHOP EARLY IN THE MORNING.
SATURDAY
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST LATE
IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.
SATURDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON
THE BAY.
SUNDAY
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST 15 TO
20 KNOTS LATE IN THE AFTERNOON. A MODERATE CHOP ON THE BAY,
INCREASING TO CHOPPY LATE IN THE AFTERNOON.
SUNDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS, BECOMING SOUTH
5 TO 10 KNOTS. CHOPPY ON THE BAY, DIMINISHING TO LIGHT CHOP.
MONDAY
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.
MONDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST
5 TO 10 KNOTS IN THE LATE EVENING AND OVERNIGHT. A MODERATE CHOP
ON THE BAY, DIMINISHING TO LIGHT CHOP IN THE LATE EVENING AND
OVERNIGHT.
TUESDAY
SOUTHEAST WINDS AROUND 5 KNOTS, INCREASING TO 10 TO
15 KNOTS. SMOOTH ON THE BAY, INCREASING TO A MODERATE CHOP.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
5 TO 10 KNOTS AFTER MIDNIGHT. LIGHT CHOP ON THE BAY.
GMZ150-155-201815-
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
1233 AM CDT FRI MAR 20 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST 10 TO
15 KNOTS LATE THIS AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL:
SOUTHEAST 2 FEET AT 6 SECONDS.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS, BECOMING AROUND 10 KNOTS
EARLY IN THE MORNING. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST
2 FEET AT 6 SECONDS.
SATURDAY
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST LATE
IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET
AT 6 SECONDS.
SATURDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
SUNDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
SUNDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
WAVE DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
MONDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
MONDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
TUESDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
5 TO 10 KNOTS EARLY IN THE MORNING. SEAS 2 TO 3 FEET.
GMZ170-175-201815-
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-
1233 AM CDT FRI MAR 20 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
SATURDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
SATURDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
SUNDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
SUNDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
MONDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
MONDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
TUESDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
TUESDAY NIGHT
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 2 TO
3 FEET.
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