220 
FZPN03 KNHC 170318
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE DEC 17 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE DEC 17.
24 HOUR FORECAST VALID 0000 UTC WED DEC 18.
48 HOUR FORECAST VALID 0000 UTC THU DEC 19.

.WARNINGS.

...GALE WARNING...
.18 HOUR FORECAST WITHIN 14N94W TO 15N95W TO 16N95W TO 16N94W TO 
14N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 
KT. SEAS BUILDING TO 8 FT.
.24 HOUR FORECAST WITHIN 15N94W TO 15N95W TO 16N95W TO 16N95W TO 
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 45 
KT. SEAS 10 TO 12 FT. ELSEWHERE N OF 14N BETWEEN 93W AND 96W N 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.36 HOUR FORECAST WITHIN 60 NM OF A LINE FROM 16N95W TO 14N95W 
TO 13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 
TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN 90 NM OF A LINE 
FROM 16N95W TO 14N95W TO 11N98W N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 12 FT.
.48 HOUR FORECAST WITHIN 60 NM OF A LINE FROM 16N95W TO 14N95W 
TO 13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 35 
TO 45 KT. SEAS 12 TO 22 FT. ELSEWHERE WITHIN 90 NM OF A LINE 
FROM 16N95W TO 14N95W TO 09N101W N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 30N117W TO 20N112W TO 12N138W TO 25N138W TO 25N137W TO 
30N125W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 26N TO 29N BETWEEN 114W AND 117W NE WINDS 
20 TO 25 KT. SEAS 8 FT. ELSEWHERE FROM 23N TO 29N BETWEEN 117W 
AND 119W AND FROM 14N TO 25N AND W OF 123W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN MIXED SWELL. 
.30 HOUR FORECAST FROM 12N TO 25N AND W OF 130W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN MIXED SWELL. 
.42 HOUR FORECAST FROM 11N TO 20N AND W OF 135W NE WINDS 20 TO 
25 KT. SEAS 9 TO 12 FT. ELSEWHERE FROM 09N TO 25N AND W OF 122W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 09N TO 25N AND W OF 120W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN MIXED SWELL...HIGHEST NEAR 18N137W.

.N OF 26N BETWEEN 112W AND 115W...INCLUDING GULF OF 
CALIFORNIA...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST N OF 24N BETWEEN 110W AND 115W...INCLUDING 
GULF OF CALIFORNIA...NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST COLD FRONT FROM 30N136W TO 26N140W. N OF 25N 
AND W OF FRONT WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL. 
.24 HOUR FORECAST COLD FRONT FROM 30N129W TO 25N135W. N OF 25N 
AND W OF FRONT WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL. 
.36 HOUR FORECAST FRONT DISSIPATED. N OF 25N AND W OF 122W WINDS 
20 KT OR LESS. SEAS 8 TO 12 KT IN PRIMARILY NW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.  

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

CONVECTION VALID AT 0300 UTC TUE DEC 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 06N77W TO 08N88W. ITCZ FROM 08N88W TO BEYOND 
07N140W. SCATTERED MODERATE FROM 06N TO 11N BETWEEN 104W AND 
122W.

$$ 

.FORECASTER ERA. NATIONAL HURRICANE CENTER.