000
FZPN03 KNHC 211645
HSFEP2

HIGH SEAS FORECAST...AMENDED TO ADD GALE 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC THU DEC 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC THU DEC 21.
24 HOUR FORECAST VALID 1200 UTC FRI DEC 22.
48 HOUR FORECAST VALID 1200 UTC SAT DEC 23.

.WARNINGS.

.FROM 15N TO 25N W OF 125W WINDS 20 KT OR LESS. SEAS 8 FT IN NW 
SWELL. 
.24 HOUR FORECAST NEW LOW PRES W OF AREA. N OF 21N W OF 136W SE 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE W OF LINE FROM 
30N137W TO 20N133W TO 17N122W TO 14N126W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN NW SWELL. 
.42 HOUR FORECAST LOW PRES NEAR 28N141W 1006 MB. N OF 27N W OF 
138W SE TO S WINDS 30 TO 35 KT. SEAS 12 TO 15 FT. ELSEWHERE N OF 
25N W OF 133W SE TO S WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
REMAINDER OF AREA N OF 20N W OF 133W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED NW AND SE SWELL. 
.48 HOUR FORECAST LOW PRES NEAR 30N140W 1006 MB N OF 29N W OF 
138W SE TO S WINDS 30 TO 35 KT. SEAS 12 TO 15 FT. ELSEWHERE N OF 
25N W OF 133W SE TO S WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
REMAINDER OF AREA N OF 20N W OF 133W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED NW AND SE SWELL. 

.SYNOPSIS AND FORECAST.

.N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF 
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 09N TO 11.5N E OF 89W...INCLUDING THE GULF OF PAPAGAYO... 
NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.COLD FRONT FROM 32N112W TO 28N120W TO 30N130W. GULF OF 
CALIFORNIA N OF FRONT NW WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 26N108W TO 
20N112W. GULF OF CALIFORNIA N OF FRONT NW WINDS 20 TO 25 KT. 
SEAS TO 8 FT. 
.48 HOUR FORECAST FRONT DISSIPATED. GULF OF CALIFORNIA FROM 23N 
TO 29N NW WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.N OF 28N BETWEEN 116W AND 124W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN NW SWELL. 
.24 HOUR FORECAST 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 1415 UTC THU DEC 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 05N77W TO 06N95W TO 08N104W. ITCZ CONTINUES 
FROM 08N104W TO 10N115W TO 10N125W TO BEYOND 06N140W. NUMEROUS 
MODERATE ISOLATED STRONG FROM 10N TO 18N BETWEEN 109W AND 116W. 
SCATTERED MODERATE FROM 03N TO 07N E OF 81W...AND FROM 07N TO 
16N BETWEEN 116W AND 127W. 

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.