000
FZPN03 KNHC 300245
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT DEC 30.
24 HOUR FORECAST VALID 0000 UTC SUN DEC 31.
48 HOUR FORECAST VALID 0000 UTC MON JAN 01.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W TO
14N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 
KT. SEAS 10 TO 14 FT. ELSEWHERE WITHIN 90 NM EITHER SIDE OF LINE 
FROM 16N95W TO 15N95W TO 12N98W N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 12 FT.
.12 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT.
SEAS 9 TO 12 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE OF LINE FROM 
16N95W TO 15N95W TO 12N98W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 
11 FT.
.15 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W TO 12N98W...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 WITHIN 60 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS 8 FT. 
.36 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS TO 8 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.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 17N128W TO 13N129W TO 09N130W. FROM 16N TO 19N 
BETWEEN 120W AND 130W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED 
NE AND NW SWELL. 
.18 HOUR FORECAST WEAKENING TROUGH FROM 17N129W TO 14N130W TO 
10N131W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.COLD FRONT JUST W OF AREA. N OF 29N W OF 137W S WINDS 20 TO 25 
KT. SEAS 8 TO 9 FT.
.12 HOUR FORECAST COLD FRONT FROM 30N139W TO 24N140W. N OF 29N 
BETWEEN 136W AND 138W S WINDS 20 TO 25 KT. SEAS TO 9 FT.
.18 HOUR FORECAST COLD FRONT FROM 30N138W TO 24N140W. N OF 29N 
BETWEEN 135W AND 137W S TO SW WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST COLD FRONT FROM 30N137W TO 25N138W TO 23N140W.
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 0230 UTC SAT DEC 29...

.SCATTERED MODERATE WITHIN 30 NM OF 12N118W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM INLAND NW COLOMBIA SW TO A 1011 MB 
LOW AT 06N79W AND CONTINUES TO 06N86W TO 07N91W. THE ITCZ BEGINS 
AT 07N91W AND CONTINUES TO 07N102W TO 08N110W TO 09N116W AND TO 
09N127W WHERE IT BRIEFLY ENDS. IT RESUMES AT 09N131W TO BEYOND 
09N140W. SCATTERED MODERATE WITHIN 30 NM OF AXIS BETWEEN 101.5W 
AND 105W AND ALSO BETWEEN 112W AND 115W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.