948 
FZPN03 KNHC 161557
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON OCT 16 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1200 UTC MON OCT 16.
24 HOUR FORECAST VALID 1200 UTC TUE OCT 17.
48 HOUR FORECAST VALID 1200 UTC WED OCT 18.

.WARNINGS.

...GALE WARNING...
.LOW PRES NEAR 11.5N102W 1007 MB. WITHIN 14N100W TO 15N102W TO 
13N104W TO 11N104W TO 10N103W TO 11N100W TO 14N100W WINDS 20 TO 
30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13N105.7W 1004 MB. WITHIN 14N100W TO 15N105W TO 15N107W TO 
12N107W TO 12N104W TO 11N100W TO 14N100W WINDS 20 TO 30 KT. SEAS
8 TO 12 FT.
.36 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
11.5N107.5W 1000 MB. WITHIN 14N106W TO 15N108W TO 14N108W TO 
13N108W TO 13N107W TO 13N106W TO 14N106W WINDS 25 TO 35 KT. SEAS
10 TO 13 FT. ELSEWHERE WITHIN 15N100W TO 17N106W TO 14N110W TO 
10N107W TO 08N103W TO 10N100W TO 15N100W WINDS 20 TO 30 KT. SEAS
8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N108W 998 MB. WITHIN 15N107W TO 16N108W TO 14N109W TO 
13N108W TO 13N107W TO 14N107W TO 15N107W WINDS 30 TO 40 KT. 
SEAS 10 TO 15 FT. ELSEWHERE WITHIN 14N100W TO 18N104W TO 
16N109W TO 13N110W TO 09N106W TO 13N104W TO 14N100W WINDS 20 TO 
30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 15N100W TO 
18N105W TO 17N111W TO 13N112W TO 07N110W TO 10N101W TO 15N100W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

...GALE WARNING...
.WITHIN 15N94W TO 16N94W TO 16N95W TO 15N97W TO 14N96W TO 14N95W
TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 16N94W TO 14N97W TO
14N100W TO 12N100W TO 12N98W TO 14N94W TO 16N94W NE TO E WINDS 
20 TO 30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 15N97W TO 13N97W TO
13N96W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC 
...N TO NE WINDS 30 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN
16N93W TO 16N95W TO 15N100W TO 11N100W TO 10N96W TO 13N94W TO 
16N93W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT IN N TO NE 
SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 15N96W TO 15N100W TO 14N99W 
TO 13N96W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT IN NE SWELL.
ELSEWHERE WITHIN 16N94W TO 13N97W TO 15N100W TO 10N100W TO 
11N95W TO 12N94W TO 16N94W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.WITHIN 30N133W TO 30N140W TO 25N140W TO 27N136W TO 30N133W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL. WITHIN 18N137W
TO 20N140W TO 14N140W TO 15N135W TO 18N137W WINDS 20 KT OR LESS.
SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N129W TO 30N140W TO 13N140W TO 
13N137W TO 18N134W TO 23N137W TO 30N129W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST WITHIN 26N122W TO 30N119W TO 30N140W TO 
11N140W TO 21N132W TO 26N122W WINDS 20 KT OR LESS. SEAS 8 TO 13 
FT IN NW SWELL...HIGHEST NEAR 30N140W.

.48 HOUR FORECAST WITHIN 03S108W TO 02S113W TO 02S116W TO
02S120W TO 03.4S120W TO 03.4S108W TO 03S108W WINDS 20 KT OR
LESS. SEAS 8 FT IN S TO SW SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 1520 UTC MON OCT 16...

.LOW PRES NEAR 11.5N102W...NUMEROUS MODERATE ISOLATED STRONG 
WITHIN 300 NM N SEMICIRCLE AND 120 NM S SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N73W TO ALONG COAST OF EL SALVADOR TO LOW 
PRES NEAR 11.5N102W TO 07N130W TO 12N140W. SCATTERED MODERATE 
ISOLATED STRONG S OF MONSOON TROUGH TO 01N AND E OF 93W. SIMILAR
CONVECTION FROM 03N TO 10N BETWEEN 99W AND 140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.