000
FZPN03 KNHC 190831
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC TUE SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE SEP 19.
24 HOUR FORECAST VALID 0600 UTC WED SEP 20.
48 HOUR FORECAST VALID 0600 UTC THU SEP 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 18N132W TO 18N140W TO 11N140W TO 12N132W TO 13N130W TO
18N132W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 18N132W TO 20N136W TO 21N140W TO
11N140W TO 12N135W TO 18N132W NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 9 FT.
.48 HOUR FORECAST WITHIN 20N131W TO 21N133W TO 21N140W TO
11N140W TO 11N136W TO 14N131W TO 20N131W NE TO E WINDS 20 TO 25
KT. SEAS 8 TO 9 FT.

.LOW PRES NEAR 15N117.5W 1007 MB. WITHIN 15N118W TO 16N118W TO 
16N119W TO 15N119W TO 15N118W WINDS 20 TO 25 KT. SEAS 9 TO 10 FT.
ELSEWHERE WITHIN 18N117W TO 18N121W TO 16N122W TO 15N120W TO 
14N117W TO 16N116W TO 18N117W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N122W 1006 MB. WITHIN 17N121W TO 18N120W TO 18N123W TO 16N125W
TO 14N124W TO 14N123W TO 17N121W WINDS 20 TO 25 KT. SEAS 9 TO 11
FT. ELSEWHERE WITHIN 18N119W TO 20N124W TO 19N127W TO 17N129W TO
13N125W TO 13N124W TO 18N119W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15.5N126W 1005 MB. WITHIN 19N124W TO 20N125W TO 19N128W TO 
16N128W TO 15N127W TO 16N124W TO 19N124W WINDS 20 TO 30 KT. SEAS
9 TO 12 FT. ELSEWHERE WITHIN 19N121W TO 22N124W TO 22N129W TO 
12N129W TO 12N127W TO 15N123W TO 19N121W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN MIXED SWELL.

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

.WITHIN 02S115W TO 01S117W TO 02S120W TO 03.4S120W TO 03S115W TO
02S115W WINDS 20 KT OR LESS. SEAS 8 FT IN SE SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.18 HOUR FORECAST WITHIN 30N126W TO 30N134W TO 28N132W TO
28N130W TO 29N128W TO 30N126W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN N SWELL.
.24 HOUR FORECAST WITHIN 30N126W TO 30N133W TO 28N132W TO
27N129W TO 29N126W TO 30N126W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN N SWELL.
.48 HOUR FORECAST WITHIN 30N122.5W TO 30N127.5W TO 29N125W TO
29N124W TO 30N122.5W 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 TUE SEP 19...

LOW PRES NEAR 15N117.5W...SCATTERED MODERATE ISOLATED STRONG 
FROM 12N TO 18N BETWEEN 118W AND 123W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09.5N84W TO 09N96W TO 15N117W TO 10N137W. 
ITCZ FROM 10N137W TO 10N140W. SCATTERED MODERATE ISOLATED STRONG
FROM 03N TO 10N E OF 106W. SCATTERED MODERATE FROM 08N TO 12N 
BETWEEN 133W AND 140W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.