493 
FZPN03 KNHC 201537
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MON AUG 20.
24 HOUR FORECAST VALID 1200 UTC TUE AUG 21.
48 HOUR FORECAST VALID 1200 UTC WED AUG 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.S OF 02S AND W OF 105W WINDS 20 KT OR LESS. SEAS TO 8 FT IN 
MIXED SE AND SW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING 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.
.42 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING GULF 
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.36 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N95W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. 
SEAS TO 9 FT.

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

CONVECTION VALID AT 1500 UTC MON AUG 20...

.TROPICAL WAVE ALONG 90W-91W...SCATTERED MODERATE TO STRONG FROM 
11N TO MEXICAN COAST BETWEEN 87.5W AND 96.5W. 

.TROPICAL WAVE ALONG 111W-112W...CONVECTION DESCRIBED BELOW.

.TROPICAL WAVE ALONG 129W...SCATTERED MODERATE TO STRONG 
FROM 13N TO 17.5N BETWEEN 121W AND 136W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES 1010 MB NEAR 09N74W AND MEANDERS 
WNW TO NEAR 12N123W. ITCZ FROM 12N129W TO BEYOND 11N140W. WIDELY 
SCATTERED MODERATE TO STRONG WITHIN 180 NM N AND 240 NM S OF 
MONSOON TROUGH BETWEEN 84W AND 122W. SCATTERED MODERATE TO 
STRONG WITHIN 45 NM N AND 150 NM S OF ITCZ BETWEEN 130W AND 
140W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.