018
FZUS54 KBRO 201816
CWFBRO
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST
NATIONAL WEATHER SERVICE BROWNSVILLE TX
116 PM 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.
GMZ100-210715-
116 PM 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.
GMZ130-132-135-210715-
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-
116 PM CDT FRI MAR 20 2026
..SMALL CRAFT EXERCISE CAUTION
REST OF TODAY
SOUTHEAST WINDS 10 TO 20 KNOTS. A MODERATE CHOP
ON THE BAY.
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 EARLY
IN THE AFTERNOON, THEN INCREASING TO 15 TO 20 KNOTS LATE IN THE
AFTERNOON. A MODERATE CHOP ON THE BAY, INCREASING TO CHOPPY LATE
IN THE AFTERNOON.
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 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS LATE IN THE AFTERNOON. LIGHT CHOP ON THE BAY, INCREASING
TO A MODERATE CHOP LATE IN THE AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
5 TO 10 KNOTS AFTER MIDNIGHT. LIGHT CHOP ON THE BAY.
GMZ150-155-210715-
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
116 PM CDT FRI MAR 20 2026
REST OF TODAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO
3 FEET. WAVE DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 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 3 FEET AT 6 SECONDS.
MONDAY
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST LATE IN
THE AFTERNOON. 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.
GMZ170-175-210715-
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-
116 PM CDT FRI MAR 20 2026
REST OF TODAY
SOUTH WINDS AROUND 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 AROUND 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
4 FEET.
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