000
FZPN03 KNHC 180225
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE APR 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE APR 18.
24 HOUR FORECAST VALID 0000 UTC WED APR 19.
48 HOUR FORECAST VALID 0000 UTC THU APR 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONTAL TROUGH FROM 30N130W TO 23.5N140W. W OF LINE FROM 
30N139W TO 29N140W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST TROUGH DISSIPATED. W OF LINE FROM 30N132W TO 
24N140W WINDS 20 KT OR LESS. SEAS TO 11 FT PRIMARILY IN NW SWELL.
.36 HOUR FORECAST COLD FRONT FROM 30N138W TO 29N140W. W OF FRONT 
WINDS 20 KT OR LESS. SEAS 12 TO 14 FT PRIMARILY IN NW SWELL.
ELSEWHERE W OF LINE FROM 30N128W TO 21N140W. WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N132W TO 23N140W. W OF LINE 
FROM 30N124W TO 17N140W WINDS LESS THAN 20 KT. SEAS 8 TO 12 FT 
PRIMARILY IN NW SWELL...HIGHEST SEAS AT 30N138W.

.12 HOUR FORECAST N OF 28.5N E OF 116.5W NW WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST N OF 26N E OF 116.5W NW WINDS 20 TO 25 KT. 
SEAS TO 8 FT.
.36 HOUR FORECAST N OF 24.5N E OF 117W NW WINDS 20 TO 25 KT. 
SEAS TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.18 HOUR FORECAST SW OF LINE FROM 01S120W TO 03.4S118W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.24 HOUR FORECAST SW OF LINE FROM 01S120W TO 03.4S116W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST S OF 02S BETWEEN 105W AND 115W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN SW SWELL.

.42 HOUR FORECAST FROM 09N TO 11N BETWEEN 120W AND 127W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN MIXED S AND NW SWELL.
.48 HOUR FORECAST FROM 08N TO 12N BETWEEN 119W AND 128W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN MIXED S AND NW SWELL.

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

CONVECTION VALID AT 0215 UTC TUE APR 18...

.TROUGH EXTENDS FROM 05N77W TO 03.4S94W TO 04.5S101W TO 00S119W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 75 NM OF LINE FROM 
03S94W TO TO 03.4S103W TO 00S105W TO 03S110W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 08N83W TO 05N93W TO 05N99W. ITCZ FROM 05N99W TO 
08N110W TO 04N125W TO 04N140W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN 180 NM OF LINE FROM 08N82W TO 04N93W AND WITHIN 
270 NM OF LINE FROM 06N105W TO 09N114W TO 05N131W.  

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.