000
FZPN03 KNHC 171543
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON APR 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON APR 17.
24 HOUR FORECAST VALID 1200 UTC TUE APR 18.
48 HOUR FORECAST VALID 1200 UTC WED APR 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WEAKENING FRONTAL TROUGH FROM 30N123W TO 24N140W. NEW COLD 
FRONT APPROACHING 30N140W. N OF 27.5N WITHIN 120 NM SE OF TROUGH 
SW WINDS 20 TO 25 KT. SEAS TO 8 FT IN NW SWELL. N OF 28N W OF 
TROUGH WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST DISSIPATING FRONTAL TROUGH FROM 30N126W TO 
25N134W TO 20N140W. NW OF LINE FROM 30N135W TO 26N140W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST TROUGH TO DISSIPATE. NEW COLD FRONT FROM 
30N137W TO 29N140W. NW OF LINE FROM 30N126W TO 19N140W WINDS 
LESS THAN 20 KT. SEAS 8 TO 12 FT IN NW SWELL...HIGHEST NEAR 
30N140W. 

.FROM 06N TO 13N BETWEEN 107W AND 134W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED NE WIND WAVES AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST N OF 29N WITHIN 90 NM OF W COAST OF BAJA 
CALIFORNIA NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST N OF 26N WITHIN 120 NM OF W COAST OF BAJA 
CALIFORNIA NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST N OF 25N WITHIN 150 NM OF W COAST OF BAJA 
CALIFORNIA NW WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE N OF 
23.5N E OF 117W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NW 
SWELL.

.24 HOUR FORECAST SW OF LINE FROM 01S120W TO 03.4S116W WINDS 20 
KT OR LESS. SEAS 8 FT IN MIXED SW AND SE SWELL.
.48 HOUR FORECAST S OF LINE FROM 03.4S104W TO 03N120W TO 03N124W 
TO 00N127W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SW AND SE 
SWELL. FROM 06.5N TO 11N BETWEEN 118W AND 132W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN BROAD MIX OF SWELL.

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

CONVECTION VALID AT 1500 UTC MON APR 17...

.TROUGH EXTENDS FROM 06N75W TO 09N84W TO 04N95W. SCATTERED TO 
NUMEROUS MODERATE TO STRONG FROM 03N TO 08N BETWEEN 76W AND 88W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ EXTENDS FROM 04N98W TO 08N111W TO 04N127W TO 04N136W TO 
03.5N140W. SCATTERED TO LOCALLY NUMEROUS MODERATE TO STRONG 
CONVECTION WITHIN 150 NM EITHER SIDE OF AXIS BETWEEN 101W AND 
127W. ISOLATED CLUSTERS OF MODERATE TO STRONG CONVECTION FROM 
02S TO 0.5S BETWEEN 102W AND 104W...AND FROM 02S TO 00N BETWEEN 
114W AND 119W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.