579
FZPN28 KNHC 172016
OFFPZ8
OFFSHORE WATERS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
116 PM PDT WED SEP 17 2025
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.
PMZ101-180830-
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,
COLOMBIA, AND WITHIN 750 NM OF ECUADOR
116 PM PDT WED SEP 17 2025
SYNOPSIS
ROUGH SEAS OVER THE REGIONAL WATERS WILL GRADUALLY
SUBSIDE THROUGH EARLY THU. MODERATE TO LOCALLY FRESH S TO SW
WINDS ARE EXPECTED S OF THE MONSOON TROUGH THROUGH EARLY THU,
WITH MODERATE OR WEAKER WINDS ELSEWHERE AND OTHERWISE, EXCEPT
LOCALLY FRESH NEAR THE AZUERO PENINSULA AND GULF OF PANAMA THU
AND LOCALLY HIGHER NEAR ANY CONVECTION.
PMZ111-180830-
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-
116 PM PDT WED SEP 17 2025
TONIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 5 TO 7 FT IN S TO
SW SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED
TSTMS THROUGH THE NIGHT.
THU
SE WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
THU NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN S TO
SW SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED
TSTMS.
FRI
NE TO E WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 13 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE DAY.
FRI NIGHT
SE WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
SUN
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
SUN NIGHT
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
MON
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 12 SECONDS.
MON NIGHT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL.
PERIOD 14 SECONDS.
PMZ113-180830-
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA
AND PAPAGAYO-
116 PM PDT WED SEP 17 2025
TONIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW
SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS.
THU
S TO SW WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE DAY.
THU NIGHT
S TO 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.
FRI
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
FRI NIGHT
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SAT
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
SUN
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF PAPAGAYO,
AND SW TO W 10 TO 15 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
SUN NIGHT
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF
PAPAGAYO, AND SW TO W 10 TO 15 KT ELSEWHERE. SEAS 3 TO 5 FT.
PERIOD 13 SECONDS.
MON
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF PAPAGAYO,
AND SW TO W 10 TO 15 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
MON NIGHT
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF
PAPAGAYO, AND SW 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD
14 SECONDS.
PMZ115-180830-
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-
116 PM PDT WED SEP 17 2025
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW
SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS
THROUGH THE NIGHT.
THU
SW 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 DAY.
THU NIGHT
SW TO W WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW
SWELL. PERIOD 13 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS
THROUGH THE NIGHT.
FRI
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
FRI NIGHT
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO
PENINSULA, AND SW 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SAT
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,
AND SW 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT NIGHT
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SUN
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SUN NIGHT
SW TO W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
12 SECONDS.
MON
SW TO W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
12 SECONDS.
MON NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
PMZ117-180830-
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-
116 PM PDT WED SEP 17 2025
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL.
PERIOD 14 SECONDS. SCATTERED TSTMS THROUGH THE NIGHT.
THU
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
DAY.
THU NIGHT
SW TO W WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL.
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH
THE NIGHT.
FRI
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
FRI NIGHT
VARIABLE WINDS LESS THAN 5 KT GULF OF PANAMA, AND S
TO SW 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SUN
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 13 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
13 SECONDS.
MON
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 13 SECONDS.
MON NIGHT
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
PMZ119-180830-
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-
116 PM PDT WED SEP 17 2025
TONIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 8 FT IN S TO SW
SWELL. PERIOD 14 SECONDS.
THU
GULF OF GUAYAQUIL, VARIABLE WINDS LESS THAN 5 KT,
BECOMING W 10 KT IN THE AFTERNOON. ELSEWHERE, S TO SW WINDS
10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD 13 SECONDS.
THU NIGHT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL.
PERIOD 13 SECONDS.
FRI
GULF OF GUAYAQUIL, VARIABLE WINDS LESS THAN 5 KT,
BECOMING W 10 KT IN THE AFTERNOON. ELSEWHERE, S TO SW WINDS
10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
FRI NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
11 SECONDS.
SAT
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SAT NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW
SWELL. PERIOD 12 SECONDS.
SUN
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW
SWELL. PERIOD 13 SECONDS.
SUN NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
13 SECONDS.
MON
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 12 SECONDS.
MON NIGHT
SW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 12 SECONDS.
PMZ121-180830-
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-
116 PM PDT WED SEP 17 2025
TONIGHT
S WINDS 10 KT. SEAS 5 TO 8 FT IN S TO SW SWELL.
PERIOD 14 SECONDS.
THU
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 13 SECONDS.
THU NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.
PERIOD 13 SECONDS.
FRI
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
FRI NIGHT
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
11 SECONDS.
SAT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
13 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 12 SECONDS.
SUN NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD
12 SECONDS.
MON
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD
12 SECONDS.
MON NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD
12 SECONDS.
PMZ123-180830-
OFFSHORE GALAPAGOS ISLANDS-
116 PM PDT WED SEP 17 2025
TONIGHT
S WINDS 10 KT. SEAS 4 TO 7 FT IN S TO SW SWELL.
PERIOD 14 SECONDS.
THU
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
THU NIGHT
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
14 SECONDS.
FRI
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
FRI NIGHT
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SAT
SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
SAT NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SUN
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
12 SECONDS.
SUN NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
12 SECONDS.
MON
SE TO S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD
12 SECONDS.
MON NIGHT
SE TO S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL.
PERIOD 13 SECONDS.
FORECASTER LEWITSKY
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