High Seas Forecast
Issued by NWS

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538
FZPN03 KNHC 160309
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT DEC 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 16.
24 HOUR FORECAST VALID 0000 UTC SUN DEC 17.
48 HOUR FORECAST VALID 0000 UTC MON DEC 18.

.WARNINGS.

...GULF OF TEHUANTEPEC GALE WARNING...
.N OF 15N BETWEEN 94W AND 96W...INCLUDING GULF OF TEHUANTEPEC...
N WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W
TO 15N95W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT.
SEAS TO 9 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE OF LINE FROM
16N95W TO 14N95W N TO NE WINDS 20 TO 30 KT. SEAS TO 8 FT.
.18 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF LINE FROM 16N95W
TO 15N95W TO 12.5N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST N OF 15N BETWEEN 94W AND 95W...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.

.SYNOPSIS AND FORECAST.

.FROM 15N TO 21N W OF 135W NE TO E WINDS 20 TO 25 KT. SEAS 10 TO
14 FT. ELSEWHERE W OF LINE FROM 30N117W TO 06N124W TO 03N140W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N116W TO 27N120W TO 27N128W.
N OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS 9 TO 14 FT. ELSEWHERE
W OF LINE FROM 30N116W TO 13N112W TO 00N120W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. N OF 21N W OF 115W
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL. S OF LINE
18N140W TO 13N110W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW
SWELL.

.GULF OF CALIFORNIA 24 HOUR FORECAST COLD FRONT MOVING INTO
NORTHERN GULF. N OF 29N S TO SW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA COLD FRONT DISSIPATED. N OF
30N NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.30 HOUR FORECAST FROM 10N TO 12N E OF 89W...INCLUDING THE GULF
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 10N TO 12N E OF 89W...INCLUDING THE GULF
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

CONVECTION VALID AT 0300 UTC SAT DEC 16...

SCATTERED MODERATE CONVECTION IS NOTED FROM 14N TO 18N BETWEEN
104W AND 114W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 09N83W TO 07N91W. THE ITCZ CONTINUES
FROM 07N91W TO 06N100W TO 11N130W TO 10N140W. NO SIGNIFICANT
CONVECTION.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.



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