000
FZPN03 KNHC 162034
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MON OCT 16.
24 HOUR FORECAST VALID 1800 UTC TUE OCT 17.
48 HOUR FORECAST VALID 1800 UTC WED OCT 18.

.WARNINGS.

...GALE WARNING...
.LOW PRES NEAR 11.5N103W 1007 MB. WITHIN 13N100W TO 15N102W TO 
13N105W TO 11N105W TO 10N102W TO 11N100W TO 13N100W WINDS 20 TO 
30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13.5N107W 1004 MB. WITHIN 15N106W TO 15N107W TO 13N108W TO 
13N107W TO 13N106W TO 14N106W TO 15N106W WINDS 25 TO 35 KT. SEAS
10 TO 14 FT. ELSEWHERE WITHIN 15N100W TO 16N104W TO 16N108W TO 
12N107W TO 12N104W TO 11N100W TO 15N100W WINDS 20 TO 25 KT. SEAS
8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N108.5W 1000 MB. WITHIN 16N106W TO 17N107W TO 17N108W TO 
16N110W TO 14N109W TO 14N107W TO 16N106W WINDS 30 TO 40 KT. SEAS 
10 TO 16 FT IN SE SWELL. ELSEWHERE WITHIN 17N100W TO 18N105W TO
17N110W TO 09N107W TO 14N104W TO 15N99W TO 17N100W WINDS 20 TO 
30 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 17N99W TO 
18N110W TO 04N113W TO 09N107W TO 04N108W TO 09N99W TO 17N99W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

...GALE WARNING...
.WITHIN 16N94W TO 16N96W TO 15N97W TO 14N97W TO 13N96W TO 14N95W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 16N94W TO 16N97W TO
14N100W TO 12N100W TO 12N97W TO 13N95W TO 16N94W NE TO E WINDS 
20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 16N96W TO 15N97W TO
14N97W TO 14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC 
...N TO NE WINDS 30 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE 
WITHIN 16N94W TO 16N95W TO 14N100W TO 11N99W TO 12N96W TO 13N94W 
TO 16N94W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. REMAINDER
OF AREA WITHIN 16N93W TO 15N100W TO 10N100W TO 09N99W TO 09N95W 
TO 11N94W TO 16N93W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO
NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
14N96W TO 14N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC 
...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 30N132W TO 30N140W TO 25N140W TO 30N132W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN NW SWELL. WITHIN 18N136W TO 20N140W TO
14N140W TO 14N136W TO 15N135W TO 18N136W WINDS 20 KT OR LESS.
SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 25N131W TO 30N120W TO 29N126W TO 
30N140W TO 12N140W TO 13N137W TO 25N131W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N136W TO 30N140W TO 25N140W TO 
30N136W WINDS 20 KT OR LESS. SEAS 12 TO 15 FT IN W TO NW SWELL.
ELSEWHERE WITHIN 30N119W TO 30N136W TO 25N140W TO 09N140W TO 
30N119W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.

.48 HOUR FORECAST WITHIN 02S111W TO 01S115W TO 02S117W TO
01S120W TO 03.4S120W TO 03.4S108W TO 02S111W WINDS 20 KT OR
LESS. SEAS 8 FT IN SW SWELL.

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

CONVECTION VALID AT 1800 UTC MON OCT 16...

.LOW PRES NEAR 11.5N103W...NUMEROUS MODERATE ISOLATED STRONG 
WITHIN 360 NM NW SEMICIRCLE AND 120 NM SE SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N74W TO ALONG COAST OF EL SALVADOR TO LOW 
PRES NEAR 11.5N113W TO 07N130W TO 13N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 360 NM OFFSHORE COLOMBIA AND CENTRAL 
AMERICA. SIMILAR CONVECTION FROM 04N TO 08N BETWEEN 99W AND 
140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.