000
FZPN03 KNHC 180230
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI AUG 18 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FRI AUG 18.
24 HOUR FORECAST VALID 0000 UTC SAT AUG 19.
48 HOUR FORECAST VALID 0000 UTC SUN AUG 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 14N113W 1008 MB. WITHIN 120 NM E SEMICIRCLE OF 
LOW WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15.5N119W 1007 MB. WITHIN 120 NM NE SEMICIRCLE OF LOW WINDS 20 
TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
17.5N128W 1007 MB. WITHIN 150 NM N SEMICIRCLE OF LOW WINDS 20 TO 
30 KT. SEAS TO 10 FT. WITHIN 75 NM S SEMICIRCLE OF LOW WINDS 20 
TO 25 KT. SEAS TO 9 FT.

.WITHIN 30 NM OF LINE FROM 16N95W TO 14.5N95W...INCLUDING THE 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W... 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 
8 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10.5N88W... INCLUDING THE 
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 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 0230 UTC FRI AUG 18...

.TROPICAL WAVE AXIS NEAR 93W N OF 06N...ISOLATED STRONG FROM 06N 
TO 11N BETWEEN 92W AND 97W.

.TROPICAL WAVE AXIS NEAR 108W FROM 07N TO 21N...SCATTERED 
MODERATE FROM 18N TO 21N BETWEEN 107W AND 111W.

.LOW PRES 14N113W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
180 NM SW SEMICIRCLE OF LOW. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 07N95W TO 14N111W THROUGH LOW PRES 
NEAR 14N113W TO 12N120W TO 13N127W TO 11N137W TO 11N140W. 
SCATTERED MODERATE WITHIN 90 NM S OF THE MONSOON TROUGH BETWEEN 
118W AND 134W. SCATTERED MODERATE ISOLATED STRONG WITHIN 90 NM 
S OF THE MONSOON TROUGH W OF 134W.   

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.