000
FZPN03 KNHC 171604
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE OCT 17.
24 HOUR FORECAST VALID 1200 UTC WED OCT 18.
48 HOUR FORECAST VALID 1200 UTC THU OCT 19.

.WARNINGS.

...STORM WARNING...
.LOW PRES NEAR 12.5N106W 1005 MB. WITHIN 15N100W TO 16N104W TO 
14N107W TO 11N107W TO 11N100W TO 15N100W WINDS 20 TO 30 KT. SEAS
8 TO 11 FT.
.09 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13N106.5W 1003 MB. LITTLE CHANGE IN CONDITIONS...EXCEPT WITHIN 
14N106W TO 14N107W TO 13N106W TO 14N106W WINDS 30 TO 35 KT. SEAS
10 TO 14 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N108W 1000 MB. WITHIN 16N107W TO 16N108W TO 14N109W TO 
13N108W TO 14N107W TO 16N107W WINDS 30 TO 40 KT. SEAS 12 TO 18 
FT. ELSEWHERE WITHIN 15N100W TO 17N102W TO 17N109W TO 14N110W TO
09N106W TO 10N103W TO 15N100W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
REMAINDER OF AREA WITHIN 16N100W TO 18N109W TO 15N112W TO 
05N109W TO 10N100W TO 16N100W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16.5N108W 994 MB. WITHIN 17N108W TO 18N109W TO 17N109W TO 
16N109W TO 16N108W TO 16N107W TO 17N108W WINDS 40 TO 50 KT. SEAS
18 TO 24 FT. ELSEWHERE WITHIN 18N106W TO 19N108W TO 18N110W TO 
16N110W TO 14N107W TO 16N106W TO 18N106W WINDS 30 TO 40 KT. SEAS
12 TO 18 FT. REMAINDER OF AREA WITHIN 19N104W TO 20N106W TO 
19N111W TO 15N111W TO 11N106W TO 11N104W TO 19N104W WINDS 20 TO 
30 KT. SEAS 9 TO 12 FT. ALSO WITHIN 18N102W TO 21N109W TO 
15N116W TO 07N116W TO 03N109W TO 05N103W TO 18N102W...INCLUDING 
NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
MIXED SWELL.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 14N97W TO 13N97W TO 13N96W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 10 TO 17 FT. ELSEWHERE WITHIN 14N93W TO 16N94W TO
15N100W TO 11N100W TO 10N95W TO 14N93W NE TO E WINDS 20 TO 30 
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 14N96W TO 14N95W TO
15N95W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 25 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 16N94W TO 
15N97W TO 15N99W TO 14N99W TO 13N96W TO 14N94W TO 16N94W NE TO E 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 
16N94W TO 13N97W TO 15N98W TO 14N100W TO 09N100W TO 12N95W TO 
16N94W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.30 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST WITHIN 16.5N94.5W TO 16N95W TO 16N95.5W TO 
14.5N95.5W TO 14.5N95W TO 15N94.5W TO 16.5N94.5W...INCLUDING THE 
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 
8 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 30N130W TO 30N140W TO 12N140W TO 16N136W TO 21N136W TO
30N130W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL. WITHIN 
30N119W TO 30N123W TO 29N122W TO 28N120W TO 30N119W WINDS 20 KT 
OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 26N122W TO 30N119W TO 30N140W TO 
11N140W TO 18N134W TO 26N122W WINDS 20 KT OR LESS. SEAS 8 TO 13 
FT IN NW SWELL...HIGHEST NEAR 30N140W.
.48 HOUR FORECAST WITHIN 30N128W TO 30N140W TO 20N140W TO 
22N137W TO 30N128W WINDS 20 KT OR LESS. SEAS 11 TO 13 FT IN NW 
SWELL. ELSEWHERE WITHIN 20N120W TO 30N117W TO 30N128W TO 21N140W
TO 05N140W TO 06N135W TO 20N120W WINDS 20 KT OR LESS. SEAS 8 TO 
11 FT IN NW SWELL.

.24 HOUR FORECAST WITHIN 03S115W TO 03S117W TO 03S118W TO
02S120W TO 03.4S120W TO 03.4S115W TO 03S115W WINDS 20 KT OR
LESS. SEAS 8 FT IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 01N114W TO 00N116W TO 03.4S120W TO 
03.4S109W TO 01N114W 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 1430 UTC TUE OCT 17...

.LOW PRES NEAR 12.5N106W...NUMEROUS MODERATE ISOLATED STRONG 
FROM 10N TO 19N BETWEEN 98W AND 110W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N73W TO GULF OF PAPAGAYO NEAR 11N86W TO 
LOW PRES NEAR 12.5N106W TO 08N115W TO 11N133W TO 08N134W TO 
11N140W. SCATTERED MODERATE ISOLATED STRONG FROM 02N TO 06N 
BETWEEN 77W AND 82W...FROM 05N TO 15N BETWEEN 83W AND 96W...FROM
04N TO 10N BETWEEN 100W AND 124W...AND FROM 10N TO 12N BETWEEN 
120W AND 129W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.