000
FZPN03 KNHC 182005
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MON SEP 18.
24 HOUR FORECAST VALID 1800 UTC TUE SEP 19.
48 HOUR FORECAST VALID 1800 UTC WED SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N95W TO 14N96W TO 14N95W TO 15N95W TO 16N95W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. 
SEAS TO 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 17N129W TO 18N135W TO 17N140W TO 14N140W TO 14N131W TO
15N128W TO 17N129W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE TO E
SWELL.
.24 HOUR FORECAST WITHIN 17N129W TO 19N135W TO 19N140W TO 
13N140W TO 13N136W TO 16N128W TO 17N129W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 22N130W TO 21N140W TO 12N140W TO 
14N130W TO 22N130W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
NE AND NW SWELL.

.WITHIN 02.5S115.5W TO 02.5S118.5W TO 03.4S120W TO 03.4S113.5W
TO 02.5S115.5W WINDS 20 KT OR LESS. SEAS 8 FT IN E TO SE SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...
NEAR 13N119W 1006 MB. WITHIN 18N117W TO 20N120W TO 18N124W TO 
16N124W TO 15N119W TO 16N117W TO 18N117W NE WINDS 20 TO 25 KT. 
SEAS 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...
13.5N121W 1004 MB. WITHIN 19N118W TO 20N122W TO 18N128W TO 
15N127W TO 14N120W TO 16N118W TO 19N118W WINDS 20 TO 30 KT.
SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...
14N124.5W 100 MB. WITHIN 19N121W TO 21N125W TO 20N129W TO 
17N131W TO 12N127W TO 13N124W TO 19N121W WINDS 20 TO 30 KT. SEAS
8 TO 12 FT.

.24 HOUR FORECAST WITHIN 30N129.5W TO 30N137W TO 29.5N136.5W TO
29.5N134W TO 29N133W TO 29.5N131.5W TO 30N129.5W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 30N125W TO 30N133W TO 27N130W TO 
27N127W TO 30N125W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.

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

CONVECTION VALID AT 1900 UTC MON SEP 18...

.LOW PRES NEAR 14N115W...SCATTERED MODERATE ISOLATED STRONG
WITHIN 240 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N75W TO 10N103W THEN RESUMES FROM LOW 
PRES NEAR 14N115W TO 10N135W. ITCZ FROM 10N135W TO 09N140W. 
SCATTERED MODERATE ISOLATED STRONG FROM 03N TO 09N BETWEEN 77W 
AND 86W...FROM 04N TO 14N BETWEEN 86W AND 100W...FROM 14N TO 18N 
BETWEEN 105W AND 110W...AND FROM 07N TO 11N BETWEEN 120W AND 
127W. SCATTERED MODERATE FROM 06N TO 14N BETWEEN 129W AND 140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.