000
FZPN03 KNHC 182102
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SUN MAR 18 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SUN MAR 18.
24 HOUR FORECAST VALID 1800 UTC MON MAR 19.
48 HOUR FORECAST VALID 1800 UTC TUE MAR 20.

.WARNINGS.

...GALE WARNING...
.COLD FRONT APPROACH 31N139W TO 29N140W. N OF 25N WITHIN 420 NM 
E OF FRONT S WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FIRST COLD FRONT FROM 30N132W TO 22N140W... 
SECOND COLD FRONT FROM 31N139W TO 29N140W. N OF 25N WITHIN 360 
NM E OF FIRST FRONT S TO SW WINDS 20 TO 30 KT. SEAS TO 11 FT. N 
OF 27N WITHIN 150 NM E OF SECOND FRONT SW WINDS 20 TO 25 KT. 
SEAS TO 11 FT. 
.36 HOUR FORECAST FIRST COLD FRONT WEAKENING FROM 30N130W TO 
20N140W...SECOND COLD FRONT FROM 30N138W TO 26N140W. N OF 26N 
WITHIN 270 NM E OF FIRST FRONT S TO SW WINDS 20 TO 25 KT. SEAS 
TO 11 FT. N OF 29N W OF 139W SW WINDS 25 TO 35 KT. SEAS 13 TO 18 
FT. ELSEWHERE N OF 26N W OF 135W SW WINDS 20 TO 30 KT. SEAS 9 TO 
14 FT. REMAINDER WATERS W OF LINE FROM 30N132W TO 24N140W WINDS 
20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST FRONTAL TROUGH FROM 30N128W TO 19N140W... COLD 
FRONT FROM 30N136W TO 25N140W. N OF 27N WITHIN 240 NM E OF 
TROUGH S WINDS 20 TO 25 KT. SEAS TO 10 FT. N OF 26N W OF 135W SW 
TO W WINDS 20 TO 30 KT. SEAS 12 TO 18 FT. ELSEWHERE W OF LINE 
FROM 30N131W TO 22N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT 
PRIMARILY IN NW SWELL.

.SYNOPSIS AND FORECAST.

.06 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W 
TO 10N88W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

.18 HOUR FORECAST FROM 19N TO 20N BETWEEN 105W AND 108W NW TO N 
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA 30 HOUR FORECAST S OF 24N NW WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.36 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 2145 UTC SUN MAR 18...

.SCATTERED MODERATE WITHIN 90 NM OF LINE FROM 30N132W TO 
26N140W.
 
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N82W TO 05N101W. ITCZ FROM 05N101W TO 
05N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM OF 
05.5N85W...AND WITHIN 30 NM OF LINES FROM 10.5N116.5W TO 
09.5N123W AND FROM 04N121.5W 05.5N130W.  

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.