000
FZPN03 KNHC 312135
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED OCT 31 2012

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W.

SYNOPSIS VALID 1800 UTC WED OCT 31.
24 HOUR FORECAST VALID 1800 UTC THU NOV 01.
48 HOUR FORECAST VALID 1800 UTC FRI NOV 02.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ROSA NEAR 14.2N 117.9W 1003 MB AT 2100 UTC OCT 
31 MOVING W OR 260 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM E 
SEMICIRCLE...0 NM SW QUADRANT AND 70 NM NW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 90 NM NW AND SE QUADRANTS...120 NM NE QUADRANT 
AND 30 NM SW QUADRANT WITH SEAS TO 14 FT.
.24 HOUR FORECAST TROPICAL STORM ROSA NEAR 14.3N 118.6W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
.48 HOUR FORECAST TROPICAL STORM ROSA NEAR 14.0N 119.0W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM E SEMICIRCLE...0 NM SW QUADRANT AND 60 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM N SEMICIRCLE...90 
NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 16 FT.
.72 HOUR FORECAST TROPICAL DEPRESSION ROSA NEAR 13.8N 119.6W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSA NEAR 14.5N
120.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSA NEAR 15.5N
121.0W. 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.

.EXCEPT AS NOTED IN WARNINGS...WITHIN 180 NM N AND 150 NM S 
SEMICIRCLES OF ROSA WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS WITHIN 210 NM N 
AND 180 NM S SEMICIRCLES OF ROSA WINDS 20 TO 33 KT. SEAS 8 TO 12 
FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS WITHIN 240 NM N 
AND 150 NM S SEMICIRCLES OF ROSA WINDS 20 TO 33 KT. SEAS 8 TO 12 
FT.

.COLD FRONT 30N135W TO 27N140W. NW OF LINE 30N131W TO 27N140W. 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT 30N128W TO 28N130W. NW OF 
FRONT WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST FRONT DISSIPATED. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.FROM 10N TO 11N E OF 89W...INCLUDING THE GULF OF PAPAGAYO NE TO 
E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 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 2100 UTC WED OCT 31...

.T.S. ROSA NEAR 14.2N 117.9W...NUMEROUS STRONG FROM 13N TO 16N 
BETWEEN 113W AND 118W.

.LOW PRES NEAR 15N109W...NUMEROUS MODERATE TO STRONG FROM 12N TO 
15N BETWEEN 106W AND 110W...AND FROM 14N TO 16N BETWEEN 110W AND 
112W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH 08N80W TO 06N95W TO LOW PRES NEAR 15N109W 1012 MB 
TO 16N113W. ITCZ 12N130W TO 08N140W. SCATTERED MODERATE FROM 05N 
TO 08N BETWEEN 86W AND 88W...AND FROM 06N TO 09N BETWEEN 134W 
AND 139W.

$$
.FORECASTER FORMOSA. NATIONAL HURRICANE CENTER.