496 
FZPN03 KNHC 301618
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN SEP 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SUN SEP 30.
24 HOUR FORECAST VALID 1200 UTC MON OCT  1.
48 HOUR FORECAST VALID 1200 UTC TUE OCT  2.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ROSA NEAR 24.4N 118.6W 984 MB AT 1500 UTC SEP 30
MOVING N OR 010 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 65 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...130 NM SE QUADRANT...70 NM SW QUADRANT...AND 100 NM
NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER
EXCEPT 240 NM SE QUADRANT WITH SEAS TO 25 FT. ELSEWHERE WITHIN
270 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT IN MIXED
SWELL. REMAINDER OF AREA BOUNDED BY 30N117W TO 25N111W TO 
12N122W TO 26N125W TO 30N117W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED SWELL. 
.24 HOUR FORECAST TROPICAL STORM ROSA NEAR 27.5N 116.7W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM N SEMICIRCLE...100 NM SE QUADRANT AND 70 NM SW 
QUADRANT. SEAS 12 FT OR GREATER FROM 24N TO 30N E OF 119W WITH
SEAS TO 20 FT. ELSEWHERE FROM 22N TO 30N E OF 122W WINDS 20 TO 33
KT. SEAS 10 TO 12 FT IN MIXED SWELL. REMAINDER OF AREA FROM 17N
TO 30N BETWEEN 110W AND 123W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL STORM ROSA NEAR 29.3N 115.4W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM E SEMICIRCLE AND 50 NM W SEMICIRCLE. ELSEWHERE 
OVER OPEN PACIFIC WATERS FROM 27N TO 30N E OF 118W WINDS 20 TO 33
KT. SEAS 8 TO 10 FT. ELSEWHERE OVER OPEN PACIFIC WATERS FROM 23N
TO 30N E OF 119W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SWELL. OVER GULF OF CALIFORNIA N OF 28N WINDS 30 TO 35 KT. SEAS 
8 TO 11 FT. 
.48 HOUR FORECAST TROPICAL DEPRESSION ROSA INLAND NEAR 31.8N 
114.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. OVER OPEN
PACIFIC WATERS FROM 28N TO 30N E OF 118W NW WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT. GULF OF CALIFORNIA N OF 28N SE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.72 HOUR FORECAST POST-TROPICAL ROSA NEAR 36.5N 111.5W. MAXIMUM 
SUSTAINED WINDS 20 KT GUSTS 30 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED.

...HURRICANE WARNING...
.TROPICAL STORM SERGIO NEAR 12.1N 105.4W 999 MB AT 1500 UTC SEP
30 MOVING W OR 270 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE.  SEAS 12 FT OR GREATER WITHIN
150 NM NE QUADRANT...120 NM SE QUADRANT...0 NM SW QUADRANT...AND
90 NM NW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 240 NM OF
CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA
WITHIN 300 NM WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SWELL.
.12 HOUR FORECAST HURRICANE SERGIO NEAR 12.1N 107.0W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM E
SEMICIRCLE AND 60 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN
150 NM NE QUADRANT...120 NM SE QUADRANT...0 NM SW QUADRANT...AND
90 NM NW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 240 NM OF
CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA
WITHIN 300 NM WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SWELL.
.24 HOUR FORECAST HURRICANE SERGIO NEAR 11.8N 109.2W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM E SEMICIRCLE...50 NM SW QUADRANT AND 60 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N AND 120 NM S
SEMICIRCLE WITH SEAS TO 22 FT. ELSEWHERE WITHIN 270 NM N AND 180
NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA WITHIN 300 NM OF CENTER WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE SERGIO NEAR 12.0N 113.5W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM E SEMICIRCLE AND 110 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 270 NM N AND 300 NM S SEMICIRCLES WITH SEAS TO 37 
FT. ELSEWHERE WITHIN 330 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10
TO 12 FT. REMAINDER OF AREA WITHIN 360 NM OF CENTER WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE SERGIO NEAR 13.6N 116.6W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SERGIO NEAR 16.0N 119.0W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT.
.120 HOUR FORECAST HURRICANE SERGIO NEAR 17.5N 121.5W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 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 A LINE FROM 16N95W TO 15N95.5W TO 
14N97W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 1500 UTC SUN SEP 30...

HURRICANE ROSA...SCATTERED MODERATE WITHIN 120 NM NE SEMICIRCLE
OF CENTER.

T.S. SERGIO...NUMEROUS STRONG WITHIN 120 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 08N81W TO 10N98W...AND FROM 16N119W 
TO 10N134W. NO SIGNIFICANT CONVECTION IS OBSERVED.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.