037 
FZPN03 KNHC 210406
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU DEC 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC THU DEC 21.
24 HOUR FORECAST VALID 0000 UTC FRI DEC 22.
48 HOUR FORECAST VALID 0000 UTC SAT DEC 23.

.WARNINGS.

...GALE WARNING...
.FROM 15N TO 16N BETWEEN 94.5W AND 96W...INCLUDING THE GULF OF 
TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 9 TO 12 FT.
ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W TO 14N97W TO 13N95W 
TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
REMAINDER OF AREA WITHIN 16N94W TO 14N98W TO 14N103W TO 10N96W 
TO 11N92W TO 12N94W TO 16N94W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN N TO NE SWELL.
.24 HOUR FORECAST FROM 15N TO 16N BETWEEN 94.5W AND 95.5W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. 
SEAS 9 TO 12 FT. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N97W TO 
13N97W TO 13N96W TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30 KT. 
SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 12N93W TO 16N94W TO 
12N101W TO 10N99W TO 10N96W TO 11N91W TO 12N93W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.30 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N96W TO 14N96W TO
14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 16N94W TO 
16N96W TO 14N97W TO 12N101W TO 10N97W TO 11N95W TO 16N94W WINDS 
20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.WITHIN 11N86W TO 12N87W TO 10N90W TO 09N90W TO 08N89W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
30 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 10N86W TO 12N87W TO 
11N89W TO 12N93W TO 08N92W TO 06N91W TO 10N86W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 12N86W TO 12N88W TO 10N89W TO 09N89W TO
08N88W TO 10N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO... 
NE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 10N86W TO 
12N88W TO 10N90W TO 10N93W TO 07N92W TO 07N89W TO 10N86W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 11N86W TO 11N88W TO 10N88W TO 10N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.

.COLD FRONT FROM 30N121W TO 25N130W. WITHIN 30N126W TO 30N133W 
TO 29N131W TO 29N130W TO 29N127W TO 29N126W TO 30N126W W TO NW 
WINDS 20 TO 25 KT. SEAS 12 TO 16 FT IN NW TO N SWELL. ELSEWHERE 
WITHIN 30N122W TO 30N140W TO 23N140W TO 25N131W TO 30N122W WINDS 
20 KT OR LESS. SEAS 8 TO 14 FT IN NW TO N SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N119W TO 
26N121W. WITHIN 29N123W TO 30N130W TO 27N131W TO 26N127W TO 
26N124W TO 29N123W NW WINDS 20 TO 25 KT. SEAS 11 TO 14 FT IN NW 
SWELL. ELSEWHERE WITHIN 26N117W TO 30N116W TO 30N140W TO 06N140W 
TO 07N129W TO 17N130W TO 26N117W WINDS 20 KT OR LESS. SEAS 8 TO 
13 FT IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 30N116W TO 30N140W TO 07N140W TO 
13N123W TO 19N116W TO 30N116W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW TO N SWELL.

.WITHIN 08N78W TO 09N79W TO 08N82W TO 05N81W TO 06N79W TO 06N78W
TO 08N78W...INCLUDING THE GULF OF PANAMA AND NEAR THE AZUERO
PENINSULA...N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WITHIN 08N79W TO 09N79W TO 08N80W TO 06N81W TO
06N80W TO 07N79W TO 08N79W...INCLUDING THE GULF OF PANAMA AND 
NEAR THE AZUERO PENINSULA...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.

.WITHIN 07N90W TO 14N104W TO 09N115W TO 17N140W TO 00N140W TO
03.4S104W TO 07N90W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
PRIMARILY NW TO N SWELL.
.24 HOUR FORECAST WITHIN 07N91W TO 11N106W TO 02N109W TO 
03.4S114W TO 03.4S96W TO 07N91W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 07N95W TO 11N107W TO 06N108W TO 02N103W
TO 03.4S106W TO 03.4S96W TO 07N95W WINDS 20 KT OR LESS. SEAS 8 
TO 9 FT IN MIXED SWELL.

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

CONVECTION VALID AT 0300 UTC THU DEC 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 05N77W TO 04N96W. ITCZ FROM 04N96W TO 
07N125W TO 06N140W. SCATTERED MODERATE FROM 03N TO 09N BETWEEN 
110W AND 125W...AND FROM 04N TO 08N BETWEEN 129W AND 140W.

$$
.FORECASTER HAGEN. NATIONAL HURRICANE CENTER.