590
FZPN28 KNHC 170748
OFFPZ8
OFFSHORE WATERS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1248 AM PDT MON AUG 17 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.
PMZ101-172000-
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,
COLOMBIA, AND WITHIN 750 NM OF ECUADOR
1248 AM PDT MON AUG 17 2026
SYNOPSIS
THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE OVER THE
WESTERN CARIBBEAN AND RELATIVELY LOWER PRESSURE OVER CENTRAL
AMERICA WILL LEAD TO FRESH NORTHEAST TO EAST GAP WINDS OVER
PAPAGAYO REGION, LOCALLY STRONG TO NEAR GALE-FORCE AT TIMES WITH
OCCASSIONALLY AND LOCALLY ROUGH SEAS AS A RESULT. MODERATE TO
FRESH WINDS WILL EXTEND AWAY FROM THIS AREA ACROSS THE FAR
OFFSHORE WATERS OF EL SALVADOR AND GUATEMALA MIDWEEK. MODERATE TO
FRESH SOUTHERLY WINDS WILL PULSE SOUTH OF THE MONSOON TROUGH
INTO TONIGHT BEFORE WEAKENING. LARGE SOUTHERLY SWELL WILL IMPACT
WATERS MAINLY FROM ECUADOR TO THE GALAPAGOS ISLANDS THROUGH THE
NEXT SEVERAL DAYS, LARGEST EXPECTED LATER TODAY THROUGH WED.
PMZ111-172000-
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-
1248 AM PDT MON AUG 17 2026
TODAY
E TO SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW
SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS
THROUGH THE NIGHT.
TONIGHT
SE TO S WINDS 10 KT, SHIFTING TO E LATE.
SEAS 5 TO 7 FT IN SW SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS
AND ISOLATED TSTMS THROUGH THE NIGHT.
TUE
E WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
15 SECONDS.
TUE NIGHT
NE WINDS 10 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
WED
NE TO E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW
SWELL. PERIOD 14 SECONDS.
WED NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN SE TO S
SWELL. PERIOD 12 SECONDS.
THU
E TO SE WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN SE SWELL.
PERIOD 12 SECONDS.
THU NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SE TO
S SWELL. PERIOD 11 SECONDS.
FRI
E TO SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.
PERIOD 11 SECONDS.
FRI NIGHT
E WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD
12 SECONDS.
PMZ113-172000-
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA
AND PAPAGAYO-
1248 AM PDT MON AUG 17 2026
TODAY
OFFSHORE GULF OF PAPAGAYO, NE TO E WINDS 15 TO 20 KT,
BECOMING N 10 KT IN THE AFTERNOON. ELSEWHERE, E WINDS 10 KT.
SEAS 5 TO 7 FT IN SW SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS
AND ISOLATED TSTMS THROUGH THE NIGHT.
TONIGHT
OFFSHORE GULF OF PAPAGAYO, NE TO E WINDS 10 TO 15 KT,
INCREASING TO 20 TO 25 KT LATE. ELSEWHERE, E TO SE
WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
TUE
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. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
TUE NIGHT
E WINDS 20 TO 25 KT. SEAS 6 TO 8 FT. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
WED
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN SE TO S SWELL.
PERIOD 12 SECONDS.
WED NIGHT
E TO SE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. PERIOD
12 SECONDS.
THU
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. PERIOD 12 SECONDS.
THU NIGHT
SE WINDS 15 TO 25 KT. SEAS 4 TO 6 FT. PERIOD 11
SECONDS.
FRI
NE TO E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
11 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT, EXCEPT NE TO E 20 KT OFFSHORE
GULF OF PAPAGAYO. SEAS 4 TO 6 FT. PERIOD 11 SECONDS.
PMZ115-172000-
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-
1248 AM PDT MON AUG 17 2026
TODAY
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW
SWELL. PERIOD 14 SECONDS. NUMEROUS SHOWERS AND SCATTERED TSTMS
THROUGH THE DAY.
TONIGHT
NEAR THE AZUERO PENINSULA, W TO NW WINDS 10 KT IN THE
EVENING, BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE, SW
WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD 14 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE NIGHT.
TUE
S WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
TUE NIGHT
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO
PENINSULA, AND S 10 KT ELSEWHERE. SEAS 4 TO 6 FT IN S TO SW
SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS
THROUGH THE NIGHT.
WED
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,
AND S 10 KT ELSEWHERE. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD
12 SECONDS.
WED NIGHT
SW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 12 SECONDS.
THU
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S TO SW
SWELL. PERIOD 12 SECONDS.
THU NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S
TO SW SWELL. PERIOD 11 SECONDS.
FRI
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S SWELL.
PERIOD 11 SECONDS.
FRI NIGHT
SW TO W WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL.
PERIOD 10 SECONDS.
PMZ117-172000-
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-
1248 AM PDT MON AUG 17 2026
TODAY
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. PERIOD
14 SECONDS. NUMEROUS SHOWERS AND SCATTERED TSTMS THROUGH THE
DAY.
TONIGHT
SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
TUE
GULF OF PANAMA, VARIABLE WINDS LESS THAN 5 KT. WINDS SE
WINDS 10 KT IN THE MORNING. ELSEWHERE, W WINDS IN THE AFTERNOON.
SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
TUE NIGHT
VARIABLE WINDS LESS THAN 5 KT, BECOMING W TO NW
10 KT LATE. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
15 SECONDS.
WED
W WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
14 SECONDS.
WED NIGHT
SW TO W WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW
SWELL. PERIOD 13 SECONDS.
THU
SW TO W WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.
PERIOD 13 SECONDS.
THU NIGHT
W WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.
PERIOD 12 SECONDS.
FRI
W WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD
11 SECONDS.
FRI NIGHT
W WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 12 SECONDS.
PMZ119-172000-
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-
1248 AM PDT MON AUG 17 2026
TODAY
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.
PERIOD 14 SECONDS.
TONIGHT
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.
PERIOD 15 SECONDS.
TUE
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL.
PERIOD 15 SECONDS.
TUE NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO
SW SWELL. PERIOD 15 SECONDS.
WED
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW
SWELL. PERIOD 13 SECONDS.
WED NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO
SW SWELL. PERIOD 12 SECONDS.
THU
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW
SWELL. PERIOD 11 SECONDS.
THU NIGHT
S TO SW WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW
SWELL. PERIOD 10 SECONDS.
FRI
S TO SW WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD
11 SECONDS.
FRI NIGHT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL.
PERIOD 12 SECONDS.
PMZ121-172000-
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-
1248 AM PDT MON AUG 17 2026
TODAY
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.
PERIOD 13 SECONDS.
TONIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW
SWELL. PERIOD 15 SECONDS.
TUE
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW
SWELL. PERIOD 15 SECONDS.
TUE NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO
SW SWELL. PERIOD 14 SECONDS.
WED
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW
SWELL. PERIOD 12 SECONDS.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S SWELL.
PERIOD 11 SECONDS.
THU
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S SWELL.
PERIOD 10 SECONDS.
THU NIGHT
S WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD
10 SECONDS.
FRI
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD
10 SECONDS.
FRI NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD
10 SECONDS.
PMZ123-172000-
OFFSHORE GALAPAGOS ISLANDS-
1248 AM PDT MON AUG 17 2026
TODAY
SE TO S WINDS 15 KT. SEAS 6 TO 9 FT IN S SWELL. PERIOD
14 SECONDS.
TONIGHT
SE WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN S SWELL.
PERIOD 15 SECONDS.
TUE
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S SWELL.
PERIOD 14 SECONDS.
TUE NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S
SWELL. PERIOD 12 SECONDS.
WED
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S SWELL.
PERIOD 10 SECONDS.
WED NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S
SWELL. PERIOD 10 SECONDS.
THU
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S SWELL.
PERIOD 10 SECONDS.
THU NIGHT
SE TO S WINDS 10 KT. SEAS 6 TO 8 FT IN S SWELL.
PERIOD 10 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 11 SECONDS.
FORECASTER LEWITSKY
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