618 
FZPN03 KNHC 231517
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU AUG 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC THU AUG 23.
24 HOUR FORECAST VALID 1200 UTC FRI AUG 24.
48 HOUR FORECAST VALID 1200 UTC SAT AUG 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN AREA BOUNDED BY 19N139W TO 18N138W TO 18N139W TO 17N140W
TO 19N140W TO 19N139W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE
AND SE SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN AREA BOUNDED BY 14N94W TO 13N94W TO 12N96W TO 13N97W TO
16N96W TO 16N94W TO 14N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.36 HOUR FORECAST WITHIN AREA BOUNDED BY 11N86W TO 10N86W TO
10N87W TO 11N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. 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 1500 UTC THU AUG 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM LOW PRES NEAR 09.5N76W TO 08N90W
TO 08N104W TO 12N120W TO LOW PRES NEAR 12N131W. ITCZ AXIS EXTENDS
FROM 10N133W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG
WITHIN 300 NM S OF AXIS E OF 82W...WITHIN 180 NM N OF AXIS
BETWEEN 83W AND 90W...FROM 05N TO 09N BETWEEN 92W AND 101W...
FROM 06N TO 13N BETWEEN 109W AND 122W...AND WITHIN 120 NM S OF
AXIS BETWEEN 132W AND 138W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.