000
FZPN03 KNHC 300905
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT DEC 30 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT DEC 30.
24 HOUR FORECAST VALID 0600 UTC SUN DEC 31.
48 HOUR FORECAST VALID 0600 UTC MON JAN 01.

.WARNINGS.

...GALE WARNING...
.WITHIN 15 NM EITHER SIDE OF LINE FROM 16N95W TO 14N95W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 25 TO 30 KT WITH 
FREQUENT GUSTS TO GALE FORCE. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 
45 NM EITHER SIDE OF LINE FROM 16N95W TO 14.5N95W TO 13.5N96W N 
TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.06 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W TO 13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 11N TO 13N 
BETWEEN 94W AND 98W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED 
NE AND NW SWELL.
.24 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING 
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 FT. 
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

...GALE WARNING...
.42 HOUR FORECAST LOW PRES N OF AREA NEAR 31.5N138W. OVER 
FORECAST WATERS WITHIN 330 NM SW SEMICIRCLE OF LOW W TO NW WINDS 
20 TO 30 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST LOW PRES JUST N OF AREA NEAR 31N137W. OVER 
FORECAST WATERS N OF 28N W OF 138W NW WINDS 30 TO 35 KT. SEAS 15 
TO 20 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 300 NM SW 
SEMICIRCLE OF LOW NW WINDS 20 TO 30 KT. SEAS 8 TO 15 FT... 
HIGHEST NW. 

.SYNOPSIS AND FORECAST.

.WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W TO 10N87W... 
INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.TROUGH FROM 18N122W TO 11N124W. FROM 16N TO 18N E OF TROUGH TO 
121W E WINDS 20 TO 25 KT. SEAS TO 8 FT. 
.12 HOUR FORECAST TROUGH FROM 17N124W TO 10N125W WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.COLD FRONT FROM 30N139W TO 26N140W. N OF 28N WITHIN 30 NM E OF 
FRONT S WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. N OF 28N W OF FRONT 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL. 
.24 HOUR FORECAST COLD FRONT FROM 30N134W TO 22N140W. 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 0900 UTC SAT DEC 30...

.COLD FRONT FROM 30N139W TO 26N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 30 NM E OF FRONT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 07N77W TO 07N97W. ITCZ FROM 07N97W TO 
08N116W TO 09N128W. IT RESUMES FROM 09N131W TO 09N140W. 
SCATTERED MODERATE ISOLATED STRONG N OF 06N BETWEEN 79W AND 83W. 
SCATTERED MODERATE ISOLATED STRONG FROM 06N TO 09N BETWEEN 101W 
AND 105W. SCATTERED MODERATE ISOLATED STRONG FROM 07N TO 13N 
BETWEEN 110W AND 120W. 

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.