074 
FZPN03 KNHC 280403
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI SEP 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI SEP 28.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 29.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 30.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ROSA NEAR 16.9N 116.7W 940 MB AT 0300 UTC SEP 28 
MOVING W OR 265 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 125 KT 
GUSTS 150 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE...80 
NM SE...70 NM SW AND 90 NM NW QUADRANTS. SEAS 12 FT OR GREATER 
WITHIN 210 NM N AND 180 NM S SEMICIRCLES WITH SEAS TO 40 FT. 
ELSEWHERE WITHIN 210 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 
12 FT. REMAINDER OF AREA FROM 11N TO 23N BETWEEN 111W AND 121W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE ROSA NEAR 17.8N 118.4W. MAXIMUM 
SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM W SEMICIRCLE...110 NM NE QUADRANT AND 120 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM N AND 240 NM S 
SEMICIRCLES WITH SEAS TO 45 FT. ELSEWHERE WITHIN 300 NM N AND 
240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. 
REMAINDER OF AREA FROM 10N TO 24N BETWEEN 112W AND 126W WINDS 20 
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ROSA NEAR 20.9N 118.8W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM W SEMICIRCLE...120 NM NE QUADRANT AND 130 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM N AND 240 NM S 
SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE WITHIN 300 NM N AND 
240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. 
REMAINDER OF AREA FROM 12N TO 26N BETWEEN 111W AND 127W WINDS 20 
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE ROSA NEAR 25.0N 118.0W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM ROSA NEAR 25.0N 118.0W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST POST-TROPICAL ROSA NEAR 36.0N 110.5W. MAXIMUM 
SUSTAINED WINDS 25 KT GUSTS 35 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 11N97W 1007 MB. WITHIN 180 NM N SEMICIRCLE WINDS 
20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
11N99W 1006 MB. WITHIN 180 NM N SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13N103W 1004 MB. WITHIN 150 NM NE SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT. ELSEWHERE FROM 11N TO 16N BETWEEN 99W AND 105W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

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

CONVECTION VALID AT 0300 UTC THU SEP 27...

.HURRICANE ROSA...NUMEROUS MODERATE TO STRONG WITHIN 180 NM OF
CENTER. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE WITHIN 300 
NM OF CENTER.

.LOW PRES NEAR 11N97W...SCATTERED MODERATE ISOLATED STRONG FROM
10N TO 15N BETWEEN 90W AND 101W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N86W TO LOW PRES 11N97W TO 12N104W... 
RESUMES FROM 13N123W TO 09N134W. ITCZ FROM 09N134W TO 10N140W. 
SCATTERED MODERATE ISOLATED STRONG FROM 06N TO 12N BETWEEN 85W 
AND 98W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.