781 
FZPN03 KNHC 211523
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE AUG 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE AUG 21.
24 HOUR FORECAST VALID 1200 UTC WED AUG 22.
48 HOUR FORECAST VALID 1200 UTC THU AUG 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.15 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.
.48 HOUR FORECAST LITTLE CHANGE.

.15 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14.5N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 13N95W...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 1515 UTC TUE AUG 21...

.TROPICAL WAVE ALONG 86W...ISOLATED MODERATE FROM 05N TO 12N 
E OF 90W. 

.TROPICAL WAVE ALONG 100W...SCATTERED MODERATE ISOLATED 
STRONG FROM 05N TO 14N BETWEEN 93W AND 110W.

.TROPICAL WAVE ALONG 118W...SCATTERED MODERATE ISOLATED 
STRONG FROM 07N TO 15N BETWEEN 113W AND 122W.

.TROPICAL WAVE ALONG 132W...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES 1010 MB NEAR 10N75W TO 08N83W TO 
09N100W TO 12N125W. ITCZ BEGINS NEAR 12N125W AND CONTINUES TO 
12N131W THEN RESUMES NEAR 12N133W TO BEYOND 10N140W. NUMEROUS 
MODERATE TO ISOLATED STRONG FROM 03N TO 08N E OF 81W...FROM 07N 
TO 11N BETWEEN 122W AND 127W AND FROM 07N TO 13N W OF 135W. 

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.