668 
FZPN03 KNHC 202108
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 20.
24 HOUR FORECAST VALID 1800 UTC FRI SEP 21.
48 HOUR FORECAST VALID 1800 UTC SAT SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 27N BETWEEN 120W AND 128W WINDS 20 KT OR LESS. SEAS TO 9 
FT IN NW SWELL. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 13N TO 19N BETWEEN 130W AND 138W WINDS 20 KT OR LESS. SEAS
8 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.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 2100 UTC THU SEP 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N84W TO 1007 MB LOW PRES NEAR 09N87W...TO 
11N100W TO 10N117W. ANOTHER MONSOON TROGH SEGMENT FROM 1009 MB 
LOW PRESSURE NEAR 14N124W TO 11N135W. INTERTROPICAL CONVERGENCE 
ZONE CONTINUES FROM 11N135W TO 11N140W. SCATTERED MODERATE 
WITHIN 90 NM EITHER SIDE OF THE MONSOON TROUGH BETWEEN 78W AND 
80W...WITHIN 90 NM S OF THE MONSOON TROUGH BETWEEN 105W AND 
108W...AND WITHIN 120 NM EITHER SIDE OF THE MONSOON TROUGH 
BETWEEN 110W AND 115W. SCATTERED MODERATE TO ISOLATED STRONG 
WITHIN 90 NM OF THE LOW PRES NEAR 11N135W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.