Coastal Waters Forecast
Issued by NWS Brownsville, TX

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FZUS54 KBRO 240317
CWFBRO

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1017 PM CDT SUN APR 23 2017

LOWER TEXAS COASTAL WATERS FROM BAFFIN BAY TO THE MOUTH OF THE
RIO GRANDE OUT TO 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

GMZ100-240930-
SYNOPSIS FOR BAFFIN BAY TO RIO GRANDE OUT 60 NM-
1017 PM CDT SUN APR 23 2017

.SYNOPSIS...MARINE CONDITIONS WILL IMPROVE TONIGHT AS HIGH
PRESSURE SPREADS OVER THE AREA. THE PRESSURE GRADIENT WILL
TIGHTEN MONDAY NIGHT THROUGH WEDNESDAY UNDER THE INFLUENCE OF
PLAINS LOW PRESSURE...RESULTING IN MODERATE TO FRESH OR EVEN
STRONG SOUTHEAST WINDS AND BUILDING SEAS. THE GRADIENT WILL RELAX
SLIGHTLY WEDNESDAY NIGHT AND THURSDAY AS A FRONT APPROACHES FROM
THE NORTH...BUT ANOTHER PLAINS LOW PRESSURE SYSTEM WILL CAUSE
FRESH TO STRONG SOUTHEAST WINDS AND BUILDING SEAS AGAIN THURSDAY
NIGHT THROUGH FRIDAY NIGHT.

$$

GMZ130-132-135-240930-
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-
1017 PM CDT SUN APR 23 2017

.REST OF TONIGHT...NORTH WINDS 7 TO 9 KNOTS IN THE LATE EVENING
AND EARLY MORNING BECOMING LIGHT. A LIGHT CHOP ON THE BAY
SUBSIDING TO SMOOTH EARLY IN THE MORNING.
.MONDAY...LIGHT WINDS BECOMING SOUTHEAST 7 TO 11 KNOTS IN THE
LATE MORNING AND EARLY AFTERNOON, THEN INCREASING TO 10 TO
13 KNOTS LATE IN THE AFTERNOON. SMOOTH ON THE BAY INCREASING TO A
LIGHT CHOP IN THE LATE MORNING AND EARLY AFTERNOON, THEN
INCREASING TO A MODERATE CHOP LATE IN THE AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 12 TO 17 KNOTS. A MODERATE CHOP ON
THE BAY.
.TUESDAY...SOUTH WINDS 14 TO 19 KNOTS INCREASING TO 17 TO
22 KNOTS IN THE AFTERNOON. CHOPPY ON THE BAY INCREASING TO ROUGH
IN THE AFTERNOON.
.TUESDAY NIGHT...SOUTH WINDS 18 TO 23 KNOTS. ROUGH ON THE BAY.
.WEDNESDAY...SOUTH WINDS 15 TO 20 KNOTS BECOMING SOUTHEAST 8 TO
13 KNOTS. CHOPPY ON THE BAY SUBSIDING TO A MODERATE CHOP.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 11 TO 16 KNOTS. A MODERATE
CHOP ON THE BAY.
.THURSDAY...EAST WINDS 12 TO 17 KNOTS. A MODERATE CHOP ON THE
BAY.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 14 KNOTS. A MODERATE CHOP
ON THE BAY.
.FRIDAY...SOUTH WINDS 18 TO 23 KNOTS. ROUGH ON THE BAY.
.FRIDAY NIGHT...SOUTHEAST WINDS 20 TO 23 KNOTS. ROUGH ON THE BAY.

$$

GMZ150-155-240930-
COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
1017 PM CDT SUN APR 23 2017

.REST OF TONIGHT...NORTH WINDS 7 TO 12 KNOTS BECOMING LIGHT. SEAS
3 TO 5 FEET WITH OCCASIONAL SEAS UP TO 6 FEET SUBSIDING TO 2 TO
3 FEET EARLY IN THE MORNING.
.MONDAY...LIGHT WINDS BECOMING SOUTHEAST 7 TO 10 KNOTS EARLY IN
THE AFTERNOON, THEN INCREASING TO 8 TO 13 KNOTS LATE IN THE
AFTERNOON. SEAS 2 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 11 TO 16 KNOTS BECOMING SOUTH
15 TO 18 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET.
.TUESDAY...SOUTH WINDS 19 TO 24 KNOTS. SEAS 4 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET.
.TUESDAY NIGHT...SOUTH WINDS 21 TO 26 KNOTS. SEAS 5 TO 7 FEET
WITH OCCASIONAL SEAS UP TO 9 FEET.
.WEDNESDAY...SOUTH WINDS 20 TO 25 KNOTS DIMINISHING TO 11 TO
16 KNOTS. SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET
SUBSIDING TO 2 TO 4 FEET WITH OCCASIONAL SEAS UP TO 6 FEET IN THE
AFTERNOON.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 13 TO 18 KNOTS. SEAS 2 TO
4 FEET WITH OCCASIONAL SEAS UP TO 6 FEET.
.THURSDAY...EAST WINDS 14 TO 19 KNOTS. SEAS 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 11 TO 16 KNOTS. SEAS 2 TO
4 FEET WITH OCCASIONAL SEAS UP TO 5 FEET.
.FRIDAY...SOUTH WINDS 18 TO 23 KNOTS. SEAS 5 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 9 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 21 TO 26 KNOTS. SEAS 6 TO 8 FEET
WITH OCCASIONAL SEAS UP TO 10 FEET.

$$

GMZ170-175-240930-
WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO
60 NM-
WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO
60 NM-
1017 PM CDT SUN APR 23 2017

.REST OF TONIGHT...NORTH WINDS 10 TO 13 KNOTS BECOMING LIGHT.
SEAS 3 TO 5 FEET WITH OCCASIONAL SEAS UP TO 6 FEET.
.MONDAY...LIGHT WINDS BECOMING SOUTHEAST 7 TO 10 KNOTS IN THE
AFTERNOON. SEAS 2 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 7 TO 12 KNOTS BECOMING SOUTH
14 TO 18 KNOTS. SEAS 2 TO 3 FEET.
.TUESDAY...SOUTH WINDS 17 TO 22 KNOTS. SEAS 5 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 9 FEET.
.TUESDAY NIGHT...SOUTH WINDS 19 TO 24 KNOTS INCREASING TO 22 TO
27 KNOTS EARLY IN THE MORNING. SEAS 6 TO 8 FEET WITH OCCASIONAL
SEAS UP TO 10 FEET.
.WEDNESDAY...SOUTH WINDS 21 TO 26 KNOTS DIMINISHING TO 10 TO
15 KNOTS. SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 FEET
SUBSIDING TO 4 TO 6 FEET WITH OCCASIONAL SEAS UP TO 8 FEET IN THE
AFTERNOON.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 14 TO 19 KNOTS. SEAS 4 TO
6 FEET WITH OCCASIONAL SEAS UP TO 8 FEET.
.THURSDAY...EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 14 TO 19 KNOTS. SEAS 3 TO
5 FEET WITH OCCASIONAL SEAS UP TO 6 FEET.
.FRIDAY...SOUTH WINDS 17 TO 22 KNOTS. SEAS 6 TO 8 FEET WITH
OCCASIONAL SEAS UP TO 10 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 22 TO 27 KNOTS. SEAS 7 TO 9 FEET
WITH OCCASIONAL SEAS UP TO 11 FEET.

$$



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