940
FZPN01 KWBC 181608
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI SEP 18 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

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.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT
TO 53N172E TO 50N180W TO 30N180W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1200 UTC SEP 18.
24 HOUR FORECAST VALID 1200 UTC SEP 19.
48 HOUR FORECAST VALID 1200 UTC SEP 20.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER NEAR 58N165W 1004 MB MOVING E 10 KT
AND SECOND CENTER NEAR 48N172W 1014 MB MOVING NE 30 KT AND
RAPIDLY INTENSIFYING. FROM 43N TO 66N W OF 168W WINDS 25 TO 35
KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 52N156W 980 MB. WITHIN 60 NM S SEMICIRCLE
AND 90 NM NW QUADRANT...AND FROM 45N TO 51N BETWEEN 152W AND 162W
WINDS 35 TO 45 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM 41N TO 55N
BETWEEN 147W AND 180W...AND N OF 55N BETWEEN 165W AND 178W WINDS
25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 57N145W 979 MB. BETWEEN 90 NM AND 300 NM SE
SEMICIRCLE WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ELSEWHERE WITHIN 480
NM E SEMICIRCLE...1020 NM SW QUADRANT...AND 780 NW QUADRANT WINDS
25 TO 35 KT. SEAS 2.5 TO 5 M.

...GALE WARNING...
.LOW 56N146W 1004 MB MOVING N 15 KT. FROM 52N TO 59N BETWEEN 139W
AND 148W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.06 HOUR FORECAST LOW 57N145W 998 MB. FROM 56N TO 60N BETWEEN
137W AND 147W WINDS 25 TO 40 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS
DIMINISHED.

.SYNOPSIS AND FORECAST.

.LOW 48N147W 1008 MB MOVING NE 20 KT. FROM 40N TO 51N BETWEEN
142W AND 153W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 54N139W 1008 MB. WITHIN 240 NM E
SEMICIRCLE...AND WITHIN 180 NM SE OF A LINE FROM 50N137W TO
42N144W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW MOVED INLAND AND CONDITIONS MERGED WITH LOW
57N145W DESCRIBED ABOVE.

.24 HOUR FORECAST FROM 32N TO 41N BETWEEN 119W AND 126W WINDS TO
25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 34N TO 43N BETWEEN 121W AND 127W WINDS TO
25 KT. SEAS 2.5 M.

.24 HOUR FORECAST LOW JUST NW OF AREA NEAR 56N173E 1017 MB. S OF
54N W OF 176E WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 49N170W 1013 MB. FROM 44N TO 50N BETWEEN
166W AND 179W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 48N
BETWEEN 169W AND 174W...AND FROM 54N TO 58N BETWEEN 142W AND
147W.
.24 HOUR FORECAST DENSE FOG FROM 61N TO 63N BETWEEN 165W AND
168W.
.48 HOUR FORECAST DENSE FOG FROM 58N TO 60N E OF 164W.

.FORECASTER POCHE. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC FRI SEP 18.
24 HOUR FORECAST VALID 1200 UTC SAT SEP 19.
48 HOUR FORECAST VALID 1200 UTC SUN SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROPICAL WAVE...INVEST EP98...ALONG 119W FROM 07N TO 19N. WINDS
20 KT OR LESS. SEAS LESS THAN 2.5 M. NUMEROUS MODERATE TO STRONG
FROM 11.5N TO 17N BETWEEN THE WAVE AND 125W.
.24 HOUR FORECAST LOW PRES...INVEST EP98...POSSIBLE TROPICAL
CYCLONE...NEAR 11N121W 1008 MB. WITHIN 12N119W TO 14N119W TO
14N122W TO 13N123W TO 12N121W TO 11N120W TO 12N119W WINDS
20 TO 25 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LOW PRES...INVEST EP98...POSSIBLE TROPICAL
CYCLONE...NEAR 11N125W 1007 MB. WITHIN 11N122W TO 13N123W TO
12N125W TO 10N126W TO 09N126W TO 08N123W TO 11N122W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M.

.LOW PRES...FORMER TROPICAL DEPRESSION FIFTEEN...NEAR 16N136W
1006 MB. WITHIN 21N128W TO 22N140W TO 14N140W TO 16N131W TO
19N128W TO 21N128W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST LOW PRES NEAR 15N139W 1007 MB. WITHIN 22N132W
TO 23N135W TO 22N140W TO 19N140W TO 18N134W TO 22N132W WINDS 20
KT OR LESS. SEAS 2.5 M IN E SWELL.
.36 HOUR FORECAST LOW PRES W OF AREA NEAR 15N141W 1008 MB.
WITHIN 16N130W TO 21N131W TO 24N135W TO 26N140W TO 18N140W TO
16N130W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LITTLE CHANGE.

.30 HOUR FORECAST LOW PRES NEAR 10N109W 1008 MB. WITHIN 10N107W
TO 11N108W TO 10N109W TO 08N109W TO 07N108W TO 08N106W TO
10N107W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LOW PRES NEAR 11N110W 1006 MB. WITHIN 11N106W
TO 12N107W TO 11N109W TO 09N110W TO 08N109W TO 10N107W TO 11N106W
S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.

.WITHIN 16N94W TO 16N95W TO 15N97W TO 13N97W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N95W TO 16N96W
TO 14N96W TO 14N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.WITHIN 12N86W TO 12N88W TO 11N89W TO 10N89W TO 09N87W TO 10N86W
TO 12N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.09 HOUR FORECAST WITHIN 28N115W TO 29N114W TO 29N116W TO
28N116W TO 26N114W TO 27N114W TO 28N115W...INCLUDING SEBASTIAN
VIZCAINO BAY AND WITHIN 60 NM OF SHORE...NW WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 29N114W TO 30N116W TO 29N116W TO
26N116W TO 26N115W TO 26N114W TO 29N114W...INCLUDING SEBASTIAN
VIZCAINO BAY AND WITHIN 60 NM OF SHORE...NW TO N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 1515 UTC FRI SEP 18...

.LOW PRES NEAR 16N136W...NUMEROUS MODERATE TO STRONG FROM 15N TO
19N BETWEEN 131W AND 136W.

.TROPICAL WAVE ALONG 119W... NUMEROUS MODERATE TO STRONG
FROM 08N TO 17N BETWEEN THE WAVE AND 125W.

.TROPICAL WAVE FROM 16N103W TO 06N105W...SCATTERED MODERATE
WITHIN 180 NM E OF THE WAVE FROM 06N TO 12N.

.NUMEROUS MODERATE TO STRONG FROM 17N TO 21N BETWEEN THE COAST
OF MEXICO AND 108W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N78W TO 10N86W TO 09N91W TO
08N101W TO 06N108W TO 12N115W TO 13N123W. IT RESUMES AT 15N135W
TO 13N140W. NUMEROUS STRONG FROM 04N TO 08N BETWEEN 77W AND 80W.
SCATTERED MODERATE ISOLATED STRONG FROM 03N TO 08N BETWEEN 81W
AND 92W AND WITHIN 120 NM S OF THE TROUGH BETWEEN 114W AND 119W.
SCATTERED MODERATE FROM 03N TO 08N BETWEEN 95W AND 102W.


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$