High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 200935
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT JAN 20.
24 HOUR FORECAST VALID 0600 UTC SUN JAN 21.
48 HOUR FORECAST VALID 0600 UTC MON JAN 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30 NM OF LINE FROM 16N95W TO 14N95.5W...INCLUDING GULF
OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
ELSEWHERE S OF 14N BETWEEN 90W AND 109W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94.5W
AND 95.5W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT. S OF 10N
BETWEEN 92W AND 100W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE
AND NW SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WEAKENING COLD FRONT FROM 30N117W TO 22N130W THEN DISSIPATING
STATIONARY TO 21N140W. NW OF FRONT AND S OF FRONT TO 10N W OF
129W N TO NE WINDS 20 TO 25 KT. SEAS 11 TO 16 FT. ELSEWHERE N OF
06N W OF 109W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED
SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 25N109W TO
19N120W. FROM 10N TO 25N W OF 119W NE WINDS 20 TO 25 KT. SEAS 10
TO 14 FT. FROM 24N TO 27N E OF 114W NW WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. ELSEWHERE OVER OPEN WATERS W OF 100W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. FROM 10N TO 22N W OF
117W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 13 FT. FROM 17N TO 20N
E OF 107W NW WINDS 20 TO 25 KT SEAS 8 FT. ELSEWHERE NW OF LINE
FROM 30N116W TO 15N104W TO 07N96W TO 05N133W TO 01N140W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10N87.5W...INCLUDING GULF
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA COLD FRONT FROM 33N115W TO 27N120W. WITHIN
60 NM SE OF FRONT S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.12 HOUR FORECAST WEAKENING COLD FRONT FROM 30N112W TO 24N120W.
N OF 30N NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 25N109W TO
19N120W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST FRONT DISSIPATED. S OF 29N NW TO N WINDS 20 TO
25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 0815 UTC SAT JAN 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N74W TO 04N85W TO 05N98W. ITCZ FROM 05N98W
TO 09N126W...THEN RESUMES W OF TROUGH NEAR 08N138W TO BEYOND
07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 10N TO 15N
BETWEEN 114W AND 130W. SCATTERED MODERATE WITHIN 90 NM N OF ITCZ
BETWEEN 110W AND 120W.

$$
.FORECASTER ASL. NATIONAL HURRICANE CENTER.



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