923
FZPN28 KNHC 230321
OFFPZ8
OFFSHORE WATERS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
821 PM PDT TUE SEP 22 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.
PMZ101-231530-
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,
COLOMBIA, AND WITHIN 750 NM OF ECUADOR
821 PM PDT TUE SEP 22 2026
SYNOPSIS
MODERATE OR WEAKER WINDS ARE EXPECTED TO PREVAIL
ACROSS THE OFFSHORE WATERS FOR THE NEXT SEVERAL DAYS, EXCEPT
BECOMING MODERATE TO FRESH OFFSHORE EL SALVADOR AND GUATEMALA
THU INTO EARLY SAT AS AN AREA OF LOW PRESSURE IS EXPECTED TO
FORM SOUTH OF THE GULF OF TEHUANTEPEC IN A FEW DAYS. A TROPICAL
DEPRESSION COULD FROM THIS AREA OF LOW PRESSURE LATE THIS WEEK
OR THIS WEEKEND AS THE SYSTEM MOVES SLOWLY AWAY FROM THE
OFFSHORE WATERS. SWELLS FROM THIS SYSTEM MAY POTENTIALLY IMPACT
THE WESTERN PORTION OF THE OFFSHORE WATERS OF GUATEMALA AND EL
SALVADOR.
PMZ111-231530-
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-
821 PM PDT TUE SEP 22 2026
TONIGHT
W TO NW WINDS 10 KT. SEAS 6 TO 8 FT IN W SWELL.
PERIOD 16 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS.
WED
NW WINDS 10 KT, SHIFTING TO SW TO W IN THE AFTERNOON.
SEAS 6 TO 9 FT IN W TO NW SWELL. PERIOD 15 SECONDS. SCATTERED
SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
WED NIGHT
W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN W TO NW
SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS
THROUGH THE NIGHT.
THU
W WINDS 10 KT. SEAS 5 TO 7 FT IN W TO NW SWELL. PERIOD
13 SECONDS. SCATTERED TSTMS THROUGH THE DAY.
THU NIGHT
SW WINDS 10 KT. SEAS 5 TO 7 FT IN W TO NW SWELL.
PERIOD 12 SECONDS.
FRI
SE TO S WINDS 10 KT. SEAS 4 TO 6 FT IN W TO NW SWELL.
PERIOD 12 SECONDS.
FRI NIGHT
SE TO S WINDS 10 KT. SEAS 4 TO 6 FT IN W SWELL.
PERIOD 13 SECONDS.
SAT
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.
PERIOD 13 SECONDS.
SAT NIGHT
S WINDS 10 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD
13 SECONDS.
SUN
S WINDS 10 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD
12 SECONDS.
SUN NIGHT
SW WINDS 10 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD
12 SECONDS.
PMZ113-231530-
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA
AND PAPAGAYO-
821 PM PDT TUE SEP 22 2026
TONIGHT
VARIABLE WINDS LESS THAN 5 KT, BECOMING S TO SW 10 KT
IN THE EVENING, THEN, BECOMING VARIABLE WINDS LESS THAN 5 KT
LATE. SEAS 3 TO 5 FT IN SW SWELL. PERIOD 16 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE NIGHT.
WED
VARIABLE WINDS LESS THAN 5 KT, BECOMING SW 10 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT IN W TO NW SWELL. PERIOD 15 SECONDS.
WED NIGHT
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF
PAPAGAYO, AND SW TO W 10 KT ELSEWHERE. SEAS 4 TO 6 FT IN W TO NW
SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS
THROUGH THE NIGHT.
THU
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF PAPAGAYO,
AND NW 10 KT ELSEWHERE. SEAS 4 TO 6 FT IN W TO NW SWELL. PERIOD
14 SECONDS.
THU NIGHT
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF
PAPAGAYO, AND SW TO W 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
FRI
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
SAT
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW TO W SWELL. PERIOD
13 SECONDS.
SAT NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN SW
SWELL. PERIOD 13 SECONDS.
SUN
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN SW
SWELL. PERIOD 12 SECONDS.
SUN NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN SW
SWELL. PERIOD 12 SECONDS.
PMZ115-231530-
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-
821 PM PDT TUE SEP 22 2026
TONIGHT
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 16 SECONDS.
WED
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
WED NIGHT
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
THU
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
FRI
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
FRI NIGHT
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT
SW WINDS 10 KT. SEAS 4 TO 6 FT IN W TO NW SWELL. PERIOD
12 SECONDS.
SAT NIGHT
W WINDS 10 KT NEAR THE AZUERO PENINSULA, AND
VARIABLE LESS THAN 5 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
SUN
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN W SWELL.
PERIOD 12 SECONDS.
SUN NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN SW
TO W SWELL. PERIOD 14 SECONDS.
PMZ117-231530-
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-
821 PM PDT TUE SEP 22 2026
TONIGHT
SW TO W WINDS 10 KT, BECOMING VARIABLE WINDS LESS
THAN 5 KT. SEAS 2 TO 4 FT. PERIOD 16 SECONDS. SCATTERED SHOWERS
AND ISOLATED TSTMS THROUGH THE NIGHT.
WED
VARIABLE WINDS LESS THAN 5 KT, BECOMING SW TO W 10 KT IN
THE AFTERNOON. SEAS 2 TO 4 FT. PERIOD 16 SECONDS. SCATTERED
SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
WED NIGHT
SW TO W WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
THU
SW WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 14 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
THU NIGHT
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
FRI
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.
FRI NIGHT
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.
SAT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN W SWELL. PERIOD
13 SECONDS.
SAT NIGHT
SW TO W WINDS 10 KT GULF OF PANAMA, AND VARIABLE
LESS THAN 5 KT ELSEWHERE. SEAS 4 TO 6 FT IN SW TO W SWELL.
PERIOD 13 SECONDS.
SUN
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN SW
SWELL. PERIOD 13 SECONDS.
SUN NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN SW
SWELL. PERIOD 12 SECONDS.
PMZ119-231530-
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-
821 PM PDT TUE SEP 22 2026
TONIGHT
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
WED
S TO SW WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 15 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
WED NIGHT
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE
NIGHT.
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 3 TO 5 FT. PERIOD 14 SECONDS. SCATTERED SHOWERS AND
ISOLATED TSTMS THROUGH THE DAY.
THU NIGHT
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
14 SECONDS.
FRI
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
FRI NIGHT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN W TO NW
SWELL. PERIOD 13 SECONDS.
SAT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW TO W SWELL.
PERIOD 13 SECONDS.
SAT NIGHT
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL.
PERIOD 13 SECONDS.
SUN
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
12 SECONDS.
SUN NIGHT
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
12 SECONDS.
PMZ121-231530-
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-
821 PM PDT TUE SEP 22 2026
TONIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS.
WED
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.
WED NIGHT
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
THU
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
ISOLATED TSTMS THROUGH THE DAY.
THU NIGHT
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD
13 SECONDS.
FRI
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 13 SECONDS.
FRI NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN W SWELL. PERIOD
13 SECONDS.
SAT
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW TO W SWELL. PERIOD
13 SECONDS.
SAT NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
12 SECONDS.
SUN
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
12 SECONDS.
SUN NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD
13 SECONDS.
PMZ123-231530-
OFFSHORE GALAPAGOS ISLANDS-
821 PM PDT TUE SEP 22 2026
TONIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD
15 SECONDS.
WED
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
WED NIGHT
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 15 SECONDS.
THU
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.
THU NIGHT
S WINDS 10 KT. SEAS 4 TO 6 FT IN W SWELL. PERIOD
13 SECONDS.
FRI
S WINDS 10 KT. SEAS 4 TO 6 FT IN W SWELL. PERIOD
12 SECONDS.
FRI NIGHT
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN W SWELL.
PERIOD 12 SECONDS.
SAT
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW TO W
SWELL. PERIOD 12 SECONDS.
SAT NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD
11 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
13 SECONDS.
FORECASTER LEWITSKY
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