029 
FZPN03 KNHC 290922
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT SEP 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT SEP 29.
24 HOUR FORECAST VALID 0600 UTC SUN SEP 30.
48 HOUR FORECAST VALID 0600 UTC MON OCT 01.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ROSA NEAR 19.2N 118.2W 971 MB AT 0900 UTC SEP 29 
MOVING N OR 350 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 
105 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT... 
140 NM SE QUADRANT...70 NM SW QUADRANT...AND 100 NM NW QUADRANT. 
SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER EXCEPT 270 NM SE 
QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN 270 OF CENTER... 
EXCEPT 300 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. 
REMAINDER OF AREA BOUNDED BY 23N110W TO 12N108W TO 08N130W TO 
20N130W TO 26N120W TO 23N110W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE ROSA NEAR 22.5N 118.6W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM E SEMICIRCLE...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 30 FT. ELSEWHERE WITHIN 240 OF 
CENTER...EXCEPT 270 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 10 TO 
12 FT. REMAINDER OF AREA BOUNDED BY 23N110W TO 15N110W TO 
10N127W TO 25N127W TO 28N116W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL. 
.48 HOUR FORECAST TROPICAL STORM ROSA NEAR 26.2N 117.3W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
.72 HOUR FORECAST TROPICAL DEPRESSION ROSA INLAND NEAR 30.9N 
115.0W. 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 38.0N 
111.0W. MAXIMUM SUSTAINED WINDS 15 KT GUSTS 20 KT.
.120 HOUR FORECAST...DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

...GALE WARNING...
.LOW PRES NEAR 12N100W 1006 MB. FROM 12N TO 13N BETWEEN 100W AND 
102W E WINDS 30 TO 35 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 180 NM 
N SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF 
AREA FROM 10N TO 15N BETWEEN 96W AND 103W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
12.5N104W 1005 MB. WITHIN 90 NM NE SEMICIRCLE OF CENTER WINDS 30 
TO 35 KT. SEAS TO 13 FT. ELSEWHERE WITHIN 180 NM NE SEMICIRCLE 
WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 10N 
TO 17N BETWEEN 98W AND 108W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N108W 1003 MB. WITHIN 90 NM OF CENTER...EXCEPT 60 SW QUADRANT 
WINDS 30 TO 40 KT. SEAS 12 TO 15 FT. ELSEWHERE WITHIN 180 NM OF 
CENTER...EXCEPT 90 SW QUDARANT WINDS 20 TO 30 KT. SEAS 10 TO 12 
FT. REMAINDER OF AREA FROM 10N TO 18N BETWEEN 101W AND 112W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.SYNOPSIS AND FORECAST.

.06 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15.5N95W 
TO 15N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS TO 8 FT.  
.24 HOUR FORECAST N OF 15N BETWEEN 94W AND 96W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.30 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95 TO 
14.5N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
30 KT. SEAS TO 9 FT.  
.48 HOUR FORECAST N OF 14.5N BETWEEN 94W AND 96W...INCLUDING 
GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS TO 9 FT. 

.ENTIRE AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0900 UTC SAT SEP 29...

HURRICANE ROSA...NUMEROUS MODERATE WITHIN 60 NM OF THE CENTER. 
SCATTERED MODERATE ELSEWHERE FROM 17N TO 21N BETWEEN 116W AND 
119W.

.LOW PRESSURE NEAR 12N100W...NUMEROUS MODERATE AND ISOLATED 
STRONG FROM 11N TO 13N BETWEEN 98W AND 110W...AND FROM 10.5N TO 
12.5N BETWEEN 100W AND 103W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM NORTHERN COLOMBIA NEAR 08N75W TO 
10N90W TO THE LOW PRESSURE NEAR 12N100W TO 11N108W...THEN 
RESUMES SW OF HURRICANE ROSA FROM 13N122W TO 06N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION IS FROM 10N-14N BETWEEN 86W-
91W. SIMILAR CONVECTION IS FROM 06N-08N BETWEEN 92W-94W...AND 
08N-10N BETWEEN 94W-97W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.