407 
FZPN03 KNHC 160322
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT DEC 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT DEC 16.
24 HOUR FORECAST VALID 0000 UTC SUN DEC 17.
48 HOUR FORECAST VALID 0000 UTC MON DEC 18.

.WARNINGS.

...GALE WARNING...
.COLD FRONT FROM 30N131W TO 20N133W TO 14N140W. N OF 28N E OF 
FRONT TO 129W S TO SW WINDS 30 TO 35 KT. SEAS 10 TO 15 FT. 
ELSEWHERE N OF 20N E OF FRONT AND W OF A LINE FROM 30N126W TO 
20N130W S TO SW WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. N OF 26N W 
OF FRONT NW WINDS 30 TO 35 KT. SEAS 8 TO 12 FT...EXCEPT 14 TO 20 
FT IN NW SWELL N OF 23N W OF 132W...HIGHEST NEAR 27N140W. 
ELSEWHERE W OF FRONT W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT...EXCEPT 12 TO 16 FT IN NW SWELL N OF 22N.
.12 HOUR FORECAST COLD FRONT WEAKENING FROM 30N129W TO 24N135W 
TO 14N140W. NEW COLD FRONT FROM 30N137W TO 23N140W. N OF 29N W 
OF NEW COLD FRONT W TO NW WINDS 20 TO 30 KT. SEAS 16 TO 20 FT IN 
NW SWELL. ELSEWHERE N OF 23N W OF NEW COLD FRONT W TO NW 20 TO 
25 KT. SEAS 16 TO 19 FT IN NW SWELL. N OF 24N BETWEEN NEW COLD 
FRONT AND THE WEAKENING COLD FRONT SW TO W WINDS 20 TO 25 KT. 
SEAS 15 TO 18 FT IN NW SWELL. N OF 26N E OF WEAKENING COLD FRONT 
TO 125W S TO S WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN NW SWELL... 
EXCEPT 11 TO 14 FT WITHIN 90 NM SE OF FRONT N OF 23N. ELSEWHERE 
W OF A LINE FROM 30N124W TO 20N132W TO 13N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN NW SWELL...EXCEPT 11 TO 14 FT N OF 17N
W OF 137W. 
.24 HOUR FORECAST FIRST COLD FRONT DISSIPATED. COLD FRONT FROM 
30N136W TO 23N140W. N OF 29N W OF FRONT W TO NW WINDS 30 TO 35 
KT. SEAS 18 TO 21 FT IN NW SWELL...HIGHEST NEAR 30N140W. 
ELSEWHERE N OF 26N W OF FRONT W TO NW WINDS 20 TO 30 KT. SEAS 16 
TO 19 FT IN NW SWELL. N OF 26N E OF FRONT TO 129W S TO S WINDS 
20 TO 25 KT. SEAS 15 TO 18 FT IN NW SWELL. ELSEWHERE W OF A LINE 
FROM 30N124W TO 20N128W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 
TO 12 FT IN NW SWELL...EXCEPT 11 TO 14 FT NW AND W OF 133W. 
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 30N130W TO 21N140W.
NEW COLD FRONT FROM 30N134W TO 25N140W. N OF 29N W OF NEW COLD 
FRONT W TO NW WINDS 20 TO 25 KT. SEAS 12 TO 15 FT IN NW SWELL. 
N OF 26N E OF NEW COLD FRONT TO 128W S TO SW WINDS 20 TO 25 KT.
SEAS 11 TO 14 FT IN NW SWELL. ELSEWHERE W AND NW OF A LINE FROM 
30N120W TO 19N122W TO 07N129W TO 04N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT IN NW TO N SWELL...EXCEPT 11 TO 15 FT N OF 20N W 
OF 134W.

...GALE WARNING...
.WITHIN 30 NM OF A LINE FROM 16N95W TO 14N95W TO 11N98W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. 
SEAS 8 TO 10 FT.
.18 HOUR FORECAST N OF 14N BETWEEN 94W AND 96W...INCLUDING THE 
GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 9 TO 12 
FT. ELSEWHERE WITHIN 60 NM OF A LINE FROM 16N95W TO 14N95W TO 
10.5N98W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST LITTLE CHANGE...EXCEPT SEAS 10 TO 13 FT.  
.42 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 14N95W N 
TO NE WINDS 30 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 75 NM 
OF A LINE FROM 16N95W TO 14N95W TO 11N102W N TO NE WINDS 20 TO 
30 KT...EXCEPT NE TO E WINDS 20 TO 25 KT BETWEEN 98W AND 
102W. SEAS 8 TO 12 FT...HIGHEST NEAR 13N96W. 
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
FROM 18N TO 23N BEWTEEN 106W AND 109W N WINDS 20 TO 25 KT. SEAS 
LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0315 UTC SAT DEC 16...

.SCATTERED MODERATE WITHIN 60 NM OF LINE FROM 06N135W TO 07N139W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON 
TROUGH AXIS EXTENDS FROM 07N77W TO 09N85W TO 06N94W. THE ITCZ 
EXTENDS FROM 06N94W TO 05N106W TO 06N118W TO 08N130W TO 10N140W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM S OF TROUGH 
BETWEEN 81W AND 87W. SCATTERED MODERATE WITHIN 60 NM EITHER SIDE 
OF ITCZ BETWEEN 94W AND 103W AND WITHIN 30 NM OF THE ITCZ 
BETWEEN 105W AND 109W. 

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.