073 
FZPN03 KNHC 280909
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FRI SEP 28.
24 HOUR FORECAST VALID 0600 UTC SAT SEP 29.
48 HOUR FORECAST VALID 0600 UTC SUN SEP 30.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ROSA NEAR 16.9N 117.4W 940 MB AT 0900 UTC SEP 28 
MOVING W OR 270 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 125 KT 
GUSTS 150 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E 
SEMICIRCLE...90 NM SW QUADRANT AND 80 NM NW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 210 NM N AND 180 NM S SEMICIRCLE WITH SEAS TO 
42 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 
122W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE ROSA NEAR 18.4N 118.4W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 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 240 NM OF CENTER WITH 
SEAS TO 45 FT. ELSEWHERE WITHIN 300 NM OF CENTER 20 TO 33 KT. 
SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 11N TO 25N BETWEEN 110W 
AND 127W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ROSA NEAR 22.0N 118.8W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM W SEMICIRCLE...130 NM NE QUADRANT AND 140 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NE AND 240 SW 
SEMICIRCLES WITH SEAS TO 38 FT. ELSEWHERE WITHIN 300 NM N AND 
240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. 
REMAINDER OF AREA FROM 13N TO 28N BETWEEN 110W AND 125W WINDS 20 
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE ROSA NEAR 25.9N 117.6W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM ROSA NEAR 25.9N 117.6W. MAXIMUM 
SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION ROSA NEAR 25.9N 117.6W.
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 
11N101W 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 0900 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
07N TO 11N BETWEEN 91W AND 99W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO LOW PRES 11N97W TO 12N104W... 
RESUMES FROM 13N121W TO 09N132W TO 10N140W. SCATTERED MODERATE 
WITHIN 15 NM N AND 75 NM S OF AXIS BETWEEN 121W AND 133W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.