000
FZPN03 KNHC 181508
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC FRI AUG 18.
24 HOUR FORECAST VALID 1200 UTC SAT AUG 19.
48 HOUR FORECAST VALID 1200 UTC SUN AUG 20.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL DEPRESSION THIRTEEN-E NEAR 14.8N 116.5W 1006 MB AT 
1500 UTC AUG 18 MOVING W-NW OR 285 DEG AT 13 KT. MAXIMUM 
SUSTAINED WINDS 30 KT GUSTS 40 KT NEAR CENTER. SEAS 11 FT. 
ELSEWHERE WITHIN 180 NM NE SEMICIRCLE OF LOW WINDS 20 TO 30 KT.
SEAS TO 10 FT. 
.12 HOUR FORECAST TROPICAL STORM THIRTEEN-E NEAR 15.4N 118.4W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT WITHIN 40 NM E 
SEMICIRCLE WITH SEAS TO 12 FT. ELSEWHERE WITHIN 240 NM NE AND 30 
NM SW SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS TO 11 FT. 
.24 HOUR FORECAST TROPICAL STORM THIRTEEN-E NEAR 15.9N 121.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS AND SEAS 12 FT OR GREATER WITHIN 40 NM OF CENTER EXCEPT 30
NM SW QUADRANT. SEAS TO 13 FT. ELSEWHERE WITHIN 240 NM OF CENTER 
EXCEPT 120 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST HURRICANE THIRTEEN-E NEAR 17.3N 126.1W.
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM N AND 40 NM S SEMICIRCLES. SEAS 12 FT OR 
GREATER WITHIN 120 NM N AND 60 NM S SEMICIRCLES WITH SEAS TO 19 
FT. ELSEWHERE WITHIN 240 NM N AND 120 NM S SEMICIRCLES OF CENTER 
WINDS 20 TO 33 KT. SEAS TO 11 FT.
.72 HOUR FORECAST HURRICANE THIRTEEN-E NEAR 19.1N 130.3W.
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE THIRTEEN-E NEAR 21.4N 132.4W.
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST TROPICAL STORM THIRTEEN-E NEAR 23.6N 133.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.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.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST 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.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 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.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 1500 UTC FRI AUG 18...

.TROPICAL DEPRESSION 13-E...SCATTERED STRONG IN BANDS WITHIN 180 
NM N AND WITHIN 240 NM S SEMICIRCLES...EXCEPT NO CONVECTION E 
QUADRANT. 

.TROPICAL WAVE N OF 05N BETWEEN 95W AND 97W...SCATTERED MODERATE 
ISOLATED STRONG WITHIN 150 NM E AND WITHIN 240 NM W OF WAVE AXIS.

..TROPICAL WAVE FROM 13N112W TO 23N109W...SCATTERED MODERATE 
ISOLATED STRONG N OF 20N WITHIN 60 NM OF WAVE AXIS.

.LOW PRES 17N128W 1009 MB...ISOLATED STRONG FLARING WITHIN 180 
NM S SEMICIRCLE.

.LOW PRES 18N140W 1010 MB...SCATTERED MODERATE WITHIN 120 NM
NE QUADRANT.  

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 07N103W TO 08N108W....RESUMES FROM 
13N118W TO 10N125W TO 11N134W TO 13N140W. SCATTERED MODERATE 
ISOLATED STRONG FROM 02N TO 08N E OF 82W...ELSEWHERE WITHIN 75 
NM OF LINE FROM 09N83W TO 07N98W TO 10N102W...WITHIN 75 NM OF 
08.5N110W...WITHIN 180 NM OF LINE FROM 07N117W TO 11N124W TO 
09N140W.  

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.