635
FZUS54 KBRO 181759
CWFBRO
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1259 PM CDT SAT APR 18 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.
GMZ100-190615-
1259 PM CDT SAT APR 18 2026
SYNOPSIS
AN ENHANCED PRESSURE GRADIENT WILL PRODUCE MODERATE TO
BREEZY WINDS AND MODERATE SEAS ALONG THE LOWER TEXAS COAST
THROUGH SATURDAY. A COLD FRONT WILL ARRIVE TONIGHT INTO TOMORROW
MORNING WITH SMALL CRAFT ADVISORIES IN EFFECT STARTING TOMORROW
MORNING. MORE FAVORABLE CONDITIONS ARE EXPECTED TO DEVELOP BY THE
MIDDLE OF NEXT WEEK.
GMZ130-132-135-190615-
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-
1259 PM CDT SAT APR 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY EVENING...
REST OF TODAY
SOUTHEAST WINDS AROUND 15 KNOTS, BECOMING EAST
LATE THIS AFTERNOON. A MODERATE CHOP ON THE BAY.
TONIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING NORTHEAST LATE IN
THE EVENING, THEN BECOMING NORTH 15 TO 20 KNOTS AFTER MIDNIGHT. A
MODERATE CHOP ON THE BAY, INCREASING TO CHOPPY AFTER MIDNIGHT. A
CHANCE OF SHOWERS.
SUNDAY
NORTHEAST WINDS 15 TO 20 KNOTS. CHOPPY ON THE BAY.
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS.
SUNDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, DIMINISHING TO
10 TO 15 KNOTS AFTER MIDNIGHT. A MODERATE CHOP ON THE BAY.
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN
THE LATE EVENING AND OVERNIGHT.
MONDAY
EAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON THE BAY.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST
EARLY IN THE MORNING. A MODERATE CHOP ON THE BAY, DIMINISHING TO
LIGHT CHOP EARLY IN THE MORNING. A SLIGHT CHANCE OF
THUNDERSTORMS. SHOWERS LIKELY EARLY IN THE EVENING, THEN A CHANCE
OF SHOWERS IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON THE
BAY. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
5 TO 10 KNOTS EARLY IN THE MORNING. A MODERATE CHOP ON THE BAY,
DIMINISHING TO LIGHT CHOP EARLY IN THE MORNING. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
IN THE EVENING.
WEDNESDAY
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO AROUND
15 KNOTS LATE IN THE AFTERNOON. LIGHT CHOP ON THE BAY, INCREASING
TO A MODERATE CHOP LATE IN THE AFTERNOON. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE
CHOP ON THE BAY.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ150-155-190615-
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
1259 PM CDT SAT APR 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY EVENING...
REST OF TODAY
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING EAST
LATE THIS AFTERNOON. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTHEAST
4 FEET AT 7 SECONDS.
TONIGHT
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 20 TO 25
KNOTS AFTER MIDNIGHT. SEAS 3 TO 4 FEET, BUILDING TO 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET AFTER MIDNIGHT. WAVE DETAIL:
SOUTHEAST 3 FEET AT 7 SECONDS, BECOMING EAST 5 FEET AT 6 SECONDS
AND NORTHEAST 3 FEET AT 3 SECONDS. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE LATE EVENING AND EARLY MORNING. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
MORNING.
SUNDAY
NORTHEAST WINDS 20 TO 25 KNOTS, DIMINISHING TO 15 TO
20 KNOTS LATE IN THE AFTERNOON. SEAS 6 TO 8 FEET, OCCASIONALLY TO
10 FEET. WAVE DETAIL: EAST 8 FEET AT 7 SECONDS. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
MORNING, THEN SHOWERS LIKELY LATE IN THE MORNING. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
SUNDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, BECOMING EAST
10 TO 15 KNOTS EARLY IN THE MORNING. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHEAST 6 FEET AT
7 SECONDS. A CHANCE OF THUNDERSTORMS. SHOWERS LIKELY.
MONDAY
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET. WAVE
DETAIL: EAST 5 FEET AT 7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS.
MONDAY NIGHT
EAST WINDS AROUND 15 KNOTS, BECOMING SOUTHEAST
EARLY IN THE MORNING. SEAS 4 TO 5 FEET. WAVE DETAIL: EAST 5 FEET
AT 7 SECONDS. A SLIGHT CHANCE OF THUNDERSTORMS. SHOWERS LIKELY
EARLY IN THE EVENING, THEN A CHANCE OF SHOWERS IN THE LATE
EVENING AND OVERNIGHT.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO
4 FEET. A CHANCE OF THUNDERSTORMS WITH A SLIGHT CHANCE OF SHOWERS
EARLY IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE LATE EVENING AND EARLY MORNING.
WEDNESDAY
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 3 TO 4 FEET. A
SLIGHT CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON. A SLIGHT
CHANCE OF SHOWERS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO
5 FEET. A SLIGHT CHANCE OF SHOWERS EARLY IN THE EVENING.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
GMZ170-175-190615-
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-
1259 PM CDT SAT APR 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY EVENING...
REST OF TODAY
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING EAST
LATE THIS AFTERNOON. SEAS 4 TO 5 FEET. WAVE DETAIL: SOUTHEAST
4 FEET AT 7 SECONDS.
TONIGHT
EAST WINDS AROUND 10 KNOTS, THEN INCREASING TO 20 TO
25 KNOTS AFTER MIDNIGHT. SEAS 3 TO 4 FEET, BUILDING TO 4 TO 6
FEET, OCCASIONALLY TO 8 FEET AFTER MIDNIGHT. WAVE DETAIL:
SOUTHEAST 4 FEET AT 7 SECONDS, BECOMING EAST 3 FEET AT 5 SECONDS.
A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT.
SUNDAY
NORTHEAST WINDS 20 TO 25 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET, BUILDING TO 7 TO 9 FEET, OCCASIONALLY TO
11 FEET IN THE AFTERNOON. WAVE DETAIL: NORTHEAST 7 FEET AT
7 SECONDS AND NORTHEAST 3 FEET AT 3 SECONDS, BECOMING EAST 8 FEET
AT 7 SECONDS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE MORNING. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
SUNDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 7 FEET AT
7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
MONDAY
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. WAVE DETAIL: EAST 5 FEET AT 7 SECONDS.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS, BECOMING SOUTHEAST
EARLY IN THE MORNING. SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET.
WAVE DETAIL: EAST 5 FEET AT 7 SECONDS. SHOWERS LIKELY WITH A
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE EVENING
AND OVERNIGHT.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET. A
CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO
5 FEET. A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
LATE EVENING AND OVERNIGHT.
WEDNESDAY
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 3 TO 4 FEET. A
SLIGHT CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON. A SLIGHT
CHANCE OF SHOWERS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO
5 FEET.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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