667
FZPN28 KNHC 210253
OFFPZ8
OFFSHORE WATERS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
753 PM PDT THU AUG 20 2026
OFFSHORE WATERS FORECAST FOR THE E PACIFIC WITHIN 250 NM OF
CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
PMZ101-211500-
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,
COLOMBIA, AND WITHIN 750 NM OF ECUADOR
753 PM PDT THU AUG 20 2026
SYNOPSIS
HIGH PRESSURE WILL PERSIST OVER THE EASTERN GULF OF
AMERICA AND NORTHWESTERN CARIBBEAN INTO EARLY NEXT WEEK, LEADING
TO FRESH NE TO E GAP WINDS PULSING TO STRONG WINDS OVER THE
PAPAGAYO REGION EACH EVENING AND NIGHT. MODERATE TO FRESH WINDS
EXTENDING WELL DOWNWIND OF PAPAGAYO WILL IMPACT THE OUTER WATERS
OFFSHORE OF EL SALVADOR AND GUATEMALA THROUGH AT LEAST EARLY
NEXT WEEK. SOUTH OF THE MONSOON TROUGH, WINDS WILL GRADUALLY
DIMINISH AND REMAIN LIGHT TO GENTLE THROUGH THE WEEKEND. MAINLY
MODERATE SEAS WILL PREVAIL AWAY FROM THE GULF OF PAPAGAYO AREA
THROUGH THE NEXT SEVERAL DAYS. SOUTHEASTERLY SWELL PRODUCING
ROUGH SEAS ACROSS THE SOUTHERN WATERS WILL SUBSIDE THIS EVENING
THROUGH FRI.
PMZ111-211500-
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-
753 PM PDT THU AUG 20 2026
TONIGHT
SE WINDS 10 TO 15 KT, SHIFTING TO NE LATE.
SEAS 6 TO 9 FT IN S SWELL. PERIOD 13 SECONDS. SCATTERED SHOWERS
AND ISOLATED TSTMS THROUGH THE NIGHT.
FRI
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN S SWELL. PERIOD
12 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.
PERIOD 11 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE NIGHT.
SAT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
13 SECONDS.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 13 SECONDS.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
15 SECONDS.
MON
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 17 SECONDS.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
16 SECONDS.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 16 SECONDS.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
15 SECONDS.
PMZ113-211500-
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA
AND PAPAGAYO-
753 PM PDT THU AUG 20 2026
TONIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN SE TO S SWELL.
PERIOD 13 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE NIGHT.
FRI
NE TO E WINDS 20 TO 25 KT OFFSHORE GULF OF PAPAGAYO, AND
NE TO E 15 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT IN SE TO S SWELL.
PERIOD 12 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE DAY.
FRI NIGHT
E TO SE WINDS 15 TO 20 KT. SEAS 6 TO 8 FT. PERIOD
11 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
SAT
NE TO E WINDS 20 TO 25 KT OFFSHORE GULF OF PAPAGAYO, AND
NE TO E 15 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT IN S SWELL. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
SAT NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. PERIOD
12 SECONDS.
SUN
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. PERIOD
11 SECONDS.
SUN NIGHT
NE TO E WINDS 25 KT OFFSHORE GULF OF PAPAGAYO, AND
E 15 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT. PERIOD 14 SECONDS.
MON
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. PERIOD
14 SECONDS.
MON NIGHT
E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD
16 SECONDS.
TUE
E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD 16 SECONDS.
TUE NIGHT
E TO SE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD
15 SECONDS.
PMZ115-211500-
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-
753 PM PDT THU AUG 20 2026
TONIGHT
SW TO W WINDS 10 KT IN THE EVENING, BECOMING VARIABLE
WINDS LESS THAN 5 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD
12 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
FRI
VARIABLE WINDS LESS THAN 5 KT. SEAS 5 TO 7 FT IN S SWELL.
PERIOD 11 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE DAY.
FRI NIGHT
NEAR THE AZUERO PENINSULA, W WINDS 10 KT IN THE
EVENING, BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE, SW
TO W WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD 11 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE NIGHT.
SAT
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,
AND SW TO W 10 KT ELSEWHERE. SEAS 4 TO 6 FT IN S SWELL. PERIOD
11 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS.
SAT NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
11 SECONDS.
SUN
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN S SWELL.
PERIOD 11 SECONDS.
SUN NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN S
SWELL. PERIOD 14 SECONDS.
MON
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN S SWELL.
PERIOD 13 SECONDS.
MON NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
16 SECONDS.
TUE
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,
AND S TO SW 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
TUE NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS.
PMZ117-211500-
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-
753 PM PDT THU AUG 20 2026
TONIGHT
SW TO W WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.
PERIOD 13 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE NIGHT.
FRI
SW TO W WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 12 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE DAY.
FRI NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
SAT
GULF OF PANAMA, NW TO N WINDS 10 KT IN THE MORNING,
BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE, SW WINDS
10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 15 SECONDS. SCATTERED
SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
SAT NIGHT
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
SUN
VARIABLE WINDS LESS THAN 5 KT GULF OF PANAMA, AND SW TO W
10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
SUN NIGHT
W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
MON
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
17 SECONDS.
MON NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
16 SECONDS.
TUE
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
TUE NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS.
PMZ119-211500-
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-
753 PM PDT THU AUG 20 2026
TONIGHT
GULF OF GUAYAQUIL, SW TO W WINDS 10 TO 15 KT IN THE
EVENING, BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE, S TO
SW WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD
11 SECONDS.
FRI
GULF OF GUAYAQUIL, VARIABLE WINDS LESS THAN 5 KT,
BECOMING W 10 TO 15 KT IN THE AFTERNOON. ELSEWHERE, S TO SW
WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD 13 SECONDS.
FRI NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN S
SWELL. PERIOD 14 SECONDS.
SAT
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
14 SECONDS.
SAT NIGHT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL.
PERIOD 11 SECONDS.
SUN
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
SUN NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
17 SECONDS.
MON
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
16 SECONDS.
MON NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS.
TUE
S TO SW WINDS 15 KT. SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
TUE NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
14 SECONDS.
PMZ121-211500-
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-
753 PM PDT THU AUG 20 2026
TONIGHT
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL.
PERIOD 11 SECONDS.
FRI
S WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD
10 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.
PERIOD 10 SECONDS.
SAT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 10 SECONDS.
SAT NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN SE TO S SWELL.
PERIOD 10 SECONDS.
SUN
S WINDS 10 KT. SEAS 4 TO 6 FT IN SE TO S SWELL. PERIOD
13 SECONDS.
SUN NIGHT
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 16 SECONDS.
MON
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 16 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
15 SECONDS.
TUE
S WINDS 15 KT. SEAS 4 TO 6 FT. PERIOD 14 SECONDS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
12 SECONDS.
PMZ123-211500-
OFFSHORE GALAPAGOS ISLANDS-
753 PM PDT THU AUG 20 2026
TONIGHT
SE TO S WINDS 10 KT. SEAS 6 TO 8 FT IN SE TO S SWELL.
PERIOD 11 SECONDS.
FRI
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN SE TO S SWELL.
PERIOD 11 SECONDS.
FRI NIGHT
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN SE TO S
SWELL. PERIOD 13 SECONDS.
SAT
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SE TO S
SWELL. PERIOD 13 SECONDS.
SAT NIGHT
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN SE TO S
SWELL. PERIOD 13 SECONDS.
SUN
SE TO S WINDS 10 KT. SEAS 4 TO 6 FT IN SE TO S SWELL.
PERIOD 13 SECONDS.
SUN NIGHT
SE TO S WINDS 10 KT. SEAS 4 TO 6 FT IN SE TO S
SWELL. PERIOD 13 SECONDS.
MON
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
13 SECONDS.
MON NIGHT
S WINDS 15 KT. SEAS 4 TO 6 FT. PERIOD 12 SECONDS.
TUE
S WINDS 15 KT. SEAS 4 TO 6 FT. PERIOD 12 SECONDS.
TUE NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
12 SECONDS.
FORECASTER ERA
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