000
FZPN03 KNHC 181453
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 18.
24 HOUR FORECAST VALID 1200 UTC TUE SEP 19.
48 HOUR FORECAST VALID 1200 UTC WED SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N94W TO 16N95W TO 14N96W TO 15N95W TO 16N94W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. 
SEAS TO 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 18N139W TO 18N140W TO 16N140W TO 17N139W TO 18N139W
WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 17N131W TO 19N135W TO 18N140W TO
13N140W TO 13N135W TO 16N131W TO 17N131W WINDS 20 KT OR LESS.
SEAS 8 FT IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 19N132W TO 21N129W TO 22N140W TO
11N140W TO 14N131W TO 19N132W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN NE SWELL.

.12 HOUR FORECAST WITHIN 03S116W TO 02S117W TO 02S120W TO
03.4S120W TO 03.4S115W TO 03S116W WINDS 20 KT OR LESS. SEAS 8 FT
IN E TO SE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.18 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N118.5 1006 MB. WITHIN 18N117W TO 19N119W TO 19N122W TO 
16N123W TO 15N118W TO 18N117W NE WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13.5120.5W 1004 MB. WITHIN 18N118W TO 19N122W TO 16N123W TO 
14N122W TO 14N120W TO 15N118W TO 18N118W WINDS 20 TO 25 KT. SEAS 
8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N124W 1000 MB. WITHIN 19N120W TO 21N129W TO 15N132W TO 12N125W
TO 15N121W TO 19N120W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.

.30 HOUR FORECAST WITHIN 30N129W TO 30N138W TO 29.5N137.5W TO
29.5N134.5W TO 29.5N131.5W TO 30N129W WINDS 20 KT OR LESS. SEAS
8 FT IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 30N124W TO 30N133W TO 28N131W TO
27N128W TO 29N125W TO 30N124W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN NW SWELL.

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

CONVECTION VALID AT 1500 UTC MON SEP 18...

.LOW PRES NEAR 13.5N114W...SCATTERED MODERATE ISOLATED STRONG
WITHIN 120 NM W QUADRANT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N75W TO 14N114W TO 10N140W. SCATTERED 
MODERATE ISOLATED STRONG FROM 02N TO 09N BETWEEN 77W AND 85W... 
FROM 03N TO 14N BETWEEN 89W AND 98W...AND FROM 07N TO 15N 
BETWEEN 117W AND 140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.