900 
FZPN03 KNHC 040335
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
0430 UTC SAT AUG 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 0000 UTC SAT AUG 04.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 05.
48 HOUR FORECAST VALID 0000 UTC MON AUG 06.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HECTOR NEAR 14.2N 130.9W 967 MB AT 0300 UTC AUG 04 
MOVING W OR 270 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE 
QUADRANTS...60 NM NE QUADRANT AND 40 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 120 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE 
WITH SEAS TO 35 FT. ELSEWHERE WITHIN 150 NM OF CENTER WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 11N TO 20N 
BETWEEN 125W AND 134W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
MIXED SWELL. 
.24 HOUR FORECAST HURRICANE HECTOR NEAR 14.2N 134.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 50 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE 
AND 120 NM S SEMICIRCLE WITH SEAS TO 38 FT. ELSEWHERE WITHIN 180 
NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF 
AREA FROM 10N TO 20N W OF 130W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE HECTOR NEAR 14.5N 139.1W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM NW AND SE QUADRANTS...80 NM NE QUADRANT AND 60 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE 
AND 120 NM S SEMICIRCLE WITH SEAS TO 40 FT. ELSEWHERE WITHIN 180 
NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF 
AREA FROM 08N TO 21N W OF 134W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE HECTOR NEAR 15.5N 144.5W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE HECTOR NEAR 15.5N 144.5W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
.120 HOUR FORECAST HURRICANE HECTOR NEAR 15.5N 144.5W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 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.

.LOW PRES NEAR 10N101W 1008 MB. FROM 06N TO 11N BETWEEN 94W AND 
105W WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL.  
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
12N102W 1007 MB. WITHIN 120 NM E SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. ELSEWHERE FROM 08N TO 15N BETWEEN 95W AND 103W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN PRIMARILY SW SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N104W 1005 MB. WITHIN 240 NM SE SEMICIRCLE AND 180 NM NW 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 
240 NM OF CENTER WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED 
SWELL. 

.LOW PRES NEAR 13N115W 1007 MB. FROM 08N TO 12N BETWEEN 105W AND 
114W WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N117W 1006 MB. WITHIN 180 NM SE SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. ELSEWHERE WITHIN 240 NM SE SEMICIRCLE WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN SW SWELL. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N119W 1005 MB. WITHIN 150 NM N QUADRANT AND 240 NM SE 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 
300 NM SE SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 9 FT IN SW 
SWELL. 

.S OF 02S BETWEEN 94W AND 110W WINDS 20 KT OR LESS. SEAS 8 FT IN 
SE AND SW SWELL.
.24 HOUR FORECAST S OF 02S BETWEEN 96W AND 114W WINDS 20 KT OR 
LESS. SEAS 8 FT IN SE AND SW SWELL.
.48 HOUR FORECAST S OF 01S BETWEEN 103W AND 120W WINDS 20 KT OR 
LESS. SEAS 8 FT IN SE AND SW SWELL.

.06 HOUR FORECAST WITHIN 15 NM OF LINE FROM 16N95W TO 15N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE. 
.36 HOUR FORECAST WITHIN 15 NM OF LINE FROM 16N95W TO 
15N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.42 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 0300 UTC SAT AUG 04...

.HURRICANE HECTOR...NUMEROUS MODERATE TO STRONG WITHIN 90 NM OF 
CENTER. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF LINE 
FROM 15N125W TO 10N132W. 

LOW PRES 10N101W...SCATTERED MODERATE FROM 08N TO 14N BETWEEN 
97W AND 103W.

LOW PRES 13N115W...SCATTERED MODERATE ISOLATED STRONG FROM 13N 
TO 17N BETWEEN 111W AND 118W...AND FROM 11N TO 13N BETWEEN 116W 
AND 119W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N77W TO 12N92W TO LOW PRES NEAR 
10N101W...THEN THROUGH LOW PRES NEAR 13N115W TO 13N124W...THEN 
RESUMES FROM 11N131W TO 09N140W. SCATTERED MODERATE ISOLATED 
STRONG N OF 07N E OF 81W...FROM 09N TO 14N BETWEEN 90W AND 
97W...AND WITHIN 180 NM OF THE MONSOON TROUGH AXIS BETWEEN 103W 
AND 111W.
 
$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.