000
FZPN03 KNHC 212132
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE NOV 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE NOV 21.
24 HOUR FORECAST VALID 1800 UTC WED NOV 22.
48 HOUR FORECAST VALID 1800 UTC THU NOV 23.

.WARNINGS.

...GALE WARNING...
.06 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15.5N BETWEEN 94.5W
AND 95W N WINDS 30 TO 35 KT. SEAS TO 8 FT. ELSEWHERE WITHIN 
16N94.5W TO 16N95W TO 15.5N95.5W TO 15N95W TO 15.5N95W TO 
15.5N94.5W TO 16N94.5W N WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 14N96W TO 13N96W TO
13N95W TO 14N95W TO 16N94W...INCLUDING THE GULF OF 
TEHUANTEPEC... N TO NE WINDS 30 TO 40 KT. SEAS TO 15 FT. 
ELSEWHERE WITHIN 15N94W TO 16N94W TO 16N95W TO 13N97W TO 11N97W 
TO 13N94W TO 15N94W N TO NE WINDS 20 TO 30 KT. SEAS TO 14 FT IN N
SWELL. REMAINDER OF AREA WITHIN 15N94W TO 15N96W TO 13N97W TO 
11N97W TO 12N94W TO 13N93W TO 15N94W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN N SWELL.
.39 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 14N96W TO 13N98W TO
13N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS TO 14 FT IN N TO NE SWELL. ELSEWHERE 
WITHIN 14N93W TO 16N94W TO 14N98W TO 10N99W TO 09N96W TO 10N94W 
TO 14N93W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 13N94W TO 15N95W TO 13N100W TO 11N100W 
TO 10N98W TO 10N95W TO 13N94W...INCLUDING THE GULF OF 
TEHUANTEPEC...WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE 
SWELL.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA WITHIN 30.5N114W TO 31N114.5W TO 30N114.5W 
TO 29.5N114W TO 30.5N114W N WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 29N114.5W TO 29N115W TO 28N115.5W TO 27N115.5W TO
27.5N115W TO 28N114.5W TO 29N114.5W...INCLUDING SEBASTIAN
VIZCAINO BAY...NE WINDS 20 TO 25 KT. SEAS TO 9 FT IN NW SWELL. 
ELSEWHERE WITHIN 25N115W TO 29N115W TO 27N121W TO 24N125W TO 
22N123W TO 23N118W TO 25N115W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 19N136W TO 20N138W TO 19N138W TO 18N138W TO 18N136W TO
19N136W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT IN NW SWELL. 
ELSEWHERE WITHIN 19N133W TO 21N137W TO 20N140W TO 18N140W TO 
12N131W TO 12N129W TO 19N133W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN MIXED NW AND NE SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH AREA OF NW SWELL 
DESCRIBED BELOW.

.LOW PRES NEAR 10.5N120W 1007 MB. WITHIN 14N121W TO 14N122W TO 
09N118W TO 10N118W TO 11N118W TO 14N121W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES NEAR 12N120W 1008 MB. WITHIN 14N120W 
TO 16N119W TO 16N121W TO 13N122W TO 13N120W TO 11N118W TO 14N120W
WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES NEAR 12.5N120.5W 1007 MB. WITHIN 
13N119W TO 13N121W TO 12N120W TO 11N120W TO 12N119W TO 13N119W 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN N SWELL. ELSEWHERE WITHIN 
14N119W TO 14N120W TO 13N122W TO 12N120W TO 11N119W TO 12N118W TO
14N119W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.

.WITHIN 30N137W TO 30N140W TO 26N140W TO 30N137W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N131W TO 30N140W TO 13N140W TO 
08N132W TO 17N135W TO 30N131W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED NW AND E SWELL.
.48 HOUR FORECAST WITHIN 30N135W TO 30N140W TO 27N140W TO 
27N139W TO 28N138W TO 29N136W TO 30N135W WINDS 20 KT OR LESS. 
SEAS 8 FT IN N SWELL. WITHIN 16N136W TO 19N136W TO 20N140W TO 
06N140W TO 07N135W TO 11N132W TO 16N136W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW TO N SWELL.

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

CONVECTION VALID AT 2110 UTC TUE NOV 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 13N72.5W TO 10.5N81.5W TO 14.5N91.5W TO LOW 
PRES NEAR 10.5N120W 1007 MB TO 05.5N138W. ITCZ FROM 05.5N138W TO
BEYOND 05N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION 
FROM 01.5N TO 08.5N BETWEEN 81W AND 91W. SCATTERED TO LOCALLY 
NUMEROUS MODERATE TO STRONG CONVECTION FROM 06.5N TO 14.5N 
BETWEEN 101W AND 122.5W...AND FROM 04.5N TO 09N BETWEEN 129W AND
137W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.