000
FZPN03 KNHC 180831
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MON SEP 18.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 19.
48 HOUR FORECAST VALID 0600 UTC WED SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N139W TO 18N140W TO 13N140W TO 14N139W TO 16N139W
WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 17N131W TO 18N135W TO 18N140W TO
12N140W TO 14N131W TO 17N131W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 18N133W TO 21N134W TO 22N140W TO
12N140W TO 13N134W TO 18N133W NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 9 FT.

.WITHIN 01S107W TO 01S112W TO 02S120W TO 03.4S120W TO 03.4S106W
TO 01S107W WINDS 20 KT OR LESS. SEAS 8 FT IN SE SWELL.
.24 HOUR FORECAST WITHIN 02S114W TO 01S117W TO 01S120W TO
03.4S120W TO 03.4S113W TO 02S114W WINDS 20 KT OR LESS. SEAS 8
FT IN SE SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.06 HOUR FORECAST WITHIN 16N93W TO 16N95W TO 14N96W TO 14N94W TO
15N93W TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 16N93W TO 16N95W TO 14N96W TO 14N94W TO
15N93W TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13.5N119W 1006 MB. WITHIN 18N115W TO 20N122W TO 19N125W TO 
14N123W TO 14N118W TO 15N116W TO 18N115W NE TO E WINDS 20 TO 25 
KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13.5N123W 1005 MB. WITHIN 20N122W TO 20N125W TO 19N127W TO 
15N126W TO 15N123W TO 17N121W TO 20N122W NE WINDS 20 TO 30 KT. 
SEAS 9 TO 11 FT. ELSEWHERE WITHIN 20N119W TO 20N131W TO 16N131W 
TO 13N129W TO 13N124W TO 17N118W TO 20N119W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED SWELL.

.42 HOUR FORECAST WITHIN 30N127W TO 30N135W TO 29N134W TO
28N130W TO 29N128W TO 30N127W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN N SWELL.
.48 HOUR FORECAST WITHIN 30N124W TO 30N134W TO 27N130W TO
27N129W TO 29N125W TO 30N124W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN N SWELL.

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

CONVECTION VALID AT 0830 UTC MON SEP 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 09N92W TO 13N112W TO 10N130W TO 
10N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 12N E OF
105W...FROM 08N TO 17N BETWEEN 110W AND 120W...AND FROM 07N TO 
13N BETWEEN 120W AND 140W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.