000
FZPN03 KNHC 172108
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED JAN 17 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED JAN 17.
24 HOUR FORECAST VALID 1800 UTC THU JAN 18.
48 HOUR FORECAST VALID 1800 UTC FRI JAN 19.

.WARNINGS.

...GALE WARNING...
.WITHIN 75 NM EITHER SIDE OF A LINE FROM 16N95W TO 11.5N97W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 45 KT.
SEAS 11 TO 19 FT. ELSEWHERE WITHIN 120 NM EITHER SIDE OF A LINE
FROM 16N95W TO 12N97W TO 10.5N101W N TO NE WINDS 20 TO 30 KT.
SEAS 10 TO 14 FT. REMAINDER OF AREA BOUNDED BY 16N95W TO 12N91W
TO 03N101W TO 13N101W TO 16N95W WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W
TO 13N96.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
30 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN 90 NM EITHER 
SIDE OF A LINE FROM 16N95W TO 13N96W TO 11N102W N TO NE WINDS 20 
TO 30 KT. SEAS 10 TO 14 FT. REMAINDER OF AREA BOUNDED BY 
16N103W TO 15N93W TO 09N87W TO 03.4S103W TO 16N103W WINDS 20 KT 
OR LESS. SEAS 8 TO 14 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WITHIN 75 NM EITHER SIDE OF A LINE FROM 16N95W
TO 13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 25 KT. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT APPROACHING 30N140W NW OF AREA. W OF A LINE FROM
30N115W TO 13N101W TO 03N101W TO 03.4S109W WINDS 20 KT OR LESS.
SEAS 8 TO 12 FT IN MIXED S AND NW SWELL...HIGHEST CENTRAL PART.
.24 HOUR FORECAST COLD FRONT FROM 30N131W TO 27N135W TO 25N140W.
W OF FRONT N TO NE WINDS 20 TO 25 KT. SEAS 12 TO 16 FT IN MIXED
SWELL. ELSEWHERE W OF A LINE FROM 30N115W TO 16N103W TO 03.4S103W
WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN MIXED SWELL.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N123W TO 24N132W. 
W OF A LINE FROM 30N126W TO 26N126W TO 13N134W N TO NE WINDS 20
TO 30 KT. SEAS 11 TO 15 FT IN MIXED SE AND NW SWELL. ELSEWHERE W
OF A LINE FROM 30N115W TO 23N111W TO 18N116W TO 11N89W TO
03.4S93W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN MIXED SWELL.

.WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W TO 08N88W... 
INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 
FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2100 UTC WED JAN 17...

.COLD FRONT APPROACHING 30N140W NW OF AREA...SCATTERED MODERATE W
OF A LINE FROM 30N139W TO 29N140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 08N77W TO LOW PRES NEAR 06N79W TO 06N84W
TO 05N93W. ITCZ AXIS EXTENDS FROM 05N93W TO 07N106W TO 06N115W TO
09N135W THEN RESUMES FROM 09N139W TO 09N140W. SCATTERED MODERATE
WITHIN 120 NM SW SEMICIRCLE OF LOW AND WITHIN 45 NM EITHER SIDE
OF AXIS BETWEEN 104W AND 115W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN AREA BOUNDED BY 12N140W TO 16N128W TO 11N115W TO
04N115W TO 04N126W TO 08N133W TO 06N140W TO 12N140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.