638
FZUS54 KBRO 301726
CWFBRO
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1226 PM CDT MON MAR 30 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.
GMZ100-310615-
1226 PM CDT MON MAR 30 2026
SYNOPSIS
GENERALLY FAVORABLE CONDITIONS WILL CONTINUE THROUGH
TONIGHT WITH LOW TO MODERATE ONSHORE FLOW AND SEAS. SLIGHTLY MORE
ADVERSE MARINE CONDITIONS CAN BE EXPECTED TUESDAY THROUGH THE
REMAINDER OF THE WEEK AS AN ENHANCED SFC PRESSURE GRADIENT WILL
RESULT IN MAINLY SMALL CRAFT EXERCISE CAUTION (SCEC) CONDITIONS.
SHOWERS AND THUNDERSTORM CHANCES INCREASE OVER THE WEEKEND INTO
THE EARLY PART OF NEXT WEEK IN RESPONSE TO A COOL FRONTAL
BOUNDARY.
GMZ130-132-135-310615-
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-
1226 PM CDT MON MAR 30 2026
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON THE
BAY.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY BECOMING
CHOPPY IN THE AFTERNOON. A SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
TUESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS DECREASING TO
10 TO 15 KNOTS AFTER MIDNIGHT. CHOPPY ON THE BAY BECOMING A
MODERATE CHOP AFTER MIDNIGHT.
WEDNESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY BECOMING
CHOPPY IN THE AFTERNOON. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING.
WEDNESDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY ON THE
BAY.
THURSDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY ON THE BAY.
THURSDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS DECREASING TO
10 TO 15 KNOTS AFTER MIDNIGHT. CHOPPY ON THE BAY BECOMING A
MODERATE CHOP AFTER MIDNIGHT.
FRIDAY
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS WITH GUSTS UP TO 30 KNOTS IN THE AFTERNOON. A MODERATE
CHOP ON THE BAY BECOMING CHOPPY IN THE AFTERNOON.
FRIDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY ON THE
BAY.
SATURDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. GUSTS TO 30 KNOTS IN
THE AFTERNOON. CHOPPY ON THE BAY. A SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
EAST WINDS 15 TO 20 KNOTS DECREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. CHOPPY ON THE BAY BECOMING A MODERATE
CHOP AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS IN THE EVENING. A
SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ150-155-310615-
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
1226 PM CDT MON MAR 30 2026
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE
DETAIL: EAST 3 FEET AT 7 SECONDS.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE
DETAIL: EAST 3 FEET AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO
4 FEET. WAVE DETAIL: EAST 4 FEET AT 7 SECONDS.
WEDNESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.
WAVE DETAIL: SOUTHEAST 4 FEET AT 7 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE MORNING.
WEDNESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO
15 TO 20 KNOTS AFTER MIDNIGHT. SEAS 4 TO 5 FEET. WAVE DETAIL:
SOUTHEAST 5 FEET AT 7 SECONDS.
THURSDAY
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET.
WAVE DETAIL: SOUTHEAST 5 FEET AT 7 SECONDS.
THURSDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO
5 FEET.
FRIDAY
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS WITH GUSTS UP TO 30 KNOTS IN THE AFTERNOON. SEAS 4 TO
5 FEET.
FRIDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS DECREASING TO
10 TO 15 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET, WITH OCCASIONAL
SEAS UP TO 7 FEET.
SATURDAY
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS IN THE AFTERNOON. SEAS 5 TO 7 FEET, WITH OCCASIONAL SEAS
UP TO 8 FEET. A SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET. A
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
GMZ170-175-310615-
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-
1226 PM CDT MON MAR 30 2026
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET. WAVE
DETAIL: EAST 3 FEET AT 7 SECONDS.
TUESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET. WAVE
DETAIL: EAST 4 FEET AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS.
TUESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO
5 FEET. WAVE DETAIL: SOUTHEAST 4 FEET AT 7 SECONDS. A SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT.
WEDNESDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET.
WAVE DETAIL: SOUTHEAST 4 FEET AT 7 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE MORNING.
WEDNESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO
15 TO 20 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET, WITH OCCASIONAL
SEAS UP TO 7 FEET. WAVE DETAIL: SOUTHEAST 5 FEET AT 7 SECONDS.
THURSDAY
SOUTHEAST WINDS 15 TO 20 KNOTS DECREASING TO 10 TO
15 KNOTS IN THE AFTERNOON. SEAS 5 TO 7 FEET, WITH OCCASIONAL SEAS
UP TO 8 FEET. WAVE DETAIL: SOUTHEAST 6 FEET AT 7 SECONDS.
THURSDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 5 TO
7 FEET, WITH OCCASIONAL SEAS UP TO 8 FEET.
FRIDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 5 TO 7 FEET, WITH
OCCASIONAL SEAS UP TO 8 FEET.
FRIDAY NIGHT
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET,
WITH OCCASIONAL SEAS UP TO 8 FEET.
SATURDAY
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 6 TO 8 FEET,
WITH OCCASIONAL SEAS UP TO 9 FEET SUBSIDING TO 4 TO 6 FEET, WITH
OCCASIONAL SEAS UP TO 7 FEET IN THE AFTERNOON. A SLIGHT CHANCE OF
SHOWERS.
SATURDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET. A
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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