986 
FZPN03 KNHC 270903
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU SEP 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 27.
24 HOUR FORECAST VALID 0600 UTC FRI SEP 28.
48 HOUR FORECAST VALID 0600 UTC SAT SEP 29.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ROSA NEAR 17.1N 114.1W 981 MB AT 0900 UTC SEP 27 
MOVING W OR 270 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 75 KT 
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM W 
SEMICIRCLE...90 NM NE AND 70 NM SE QUADRANTS. SEAS 12 FT OR 
GREATER WITHIN 180 NM E AND 150 NM W SEMICIRCLES WITH SEAS TO 38 
FT. ELSEWHERE WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 
TO 11 FT. REMAINDER WATERS WITHIN 300 NM OF CENTER WINDS 20 KT 
OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE ROSA NEAR 17.5N 117.0W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM W SEMICIRCLE...100 NM NE AND 110 NM SE QUADRANTS. 
WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 240 NM OF 
CENTER WITH SEAS TO 43 FT. REMAINDER WATERS WITHIN 330 OF 
CENTER WINDS 20 KT OR LESS. SEAS TO 11 FT PRIMARILY IN MIXED 
SWELL. SCATTERED TSTMS IN BANDS WITHIN 270 NM OF CENTER. 
.48 HOUR FORECAST HURRICANE ROSA NEAR 18.8N 118.8W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM E AND 90 NM W SEMICIRCLES. WINDS 20 TO 33 KT AND 
SEAS 12 FT OR GREATER WITHIN 270 NM OF CENTER WITH SEAS TO 48 FT.
REMAINDER WATERS WITHIN 480 NM OF CENTER WINDS 20 KT OR LESS. 
SEAS TO 11 FT PRIMARILY IN MIXED SWELL. SCATTERED TSTMS IN BANDS 
WITHIN 270 NM OF CENTER.  
.72 HOUR FORECAST HURRICANE ROSA NEAR 22.0N 119.0W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM ROSA NEAR 22.0N 119.0W. MAXIMUM 
SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM ROSA NEAR 22.0N 119.0W.
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.

.LOW PRES 10.5N93W 1009 MB. WITHIN 120 NM N SEMICIRCLE WINDS 20 
KT OR LESS. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW PRES NEAR 11N96.5W 1007 MB. WITHIN 210 NM 
NE SEMICIRCLE E TO SE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES NEAR 12N100W 1006 MB. WITHIN 240 NM N 
SEMICIRCLE NE TO E WINDS 20 TO 25 KT. SEAS TO 11 FT.
WITHIN 60 NM S SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 9 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 STRONG IN BANDS WITHIN 270 NM SE AND 
240 NM NW SEMICIRCLES.

.LOW PRES 10.5N93W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
120 NM NW QUADRANT OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH 10N76W TO 09N85W TO LOW PRES 10.5N93W TO 
10N101W...RESUMES FROM 13N116W TO 11N129W. ITCZ FROM 11N129W TO 
11N138W. SCATTERED MODERATE TO STRONG N OF 12N BETWEEN 81W AND 
100W. SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM OF LINE 
FROM 05N77W TO 10N88W TO 09N105W TO 14N109W...WITHIN 120 NM OF 
LINE FROM 13N116W TO 11N129W. 

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.