582 
FZPN03 KNHC 262044
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED SEP 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED SEP 26.
24 HOUR FORECAST VALID 1800 UTC THU SEP 27.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 28.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ROSA NEAR 16.5N 112.2W 987 MB AT 2100 UTC SEP 26
MOVING WNW OR 285 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE
QUADRANTS...70 NM NE QUADRANT AND 40 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 120 NM NW AND SE QUADRANTS...150 NM NE QUADRANT
AND 90 NM SW QUADRANT WITH SEAS TO 28 FT. ELSEWHERE WITHIN 180 NM
N SEMICIRCLE AND 120 NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT. REMAINDER OF AREA WITHIN 360 NM E SEMICIRCLE AND 180 NM
W SEMICIRCLE WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL.
.24 HOUR FORECAST HURRICANE ROSA NEAR 16.9N 115.3W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM W SEMICIRCLE...100 NM NE QUADRANT AND 80 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER EXCEPT
180 NM SW QUADRANT WITH SEAS TO 36 FT. ELSEWHERE WITHIN 180 NM 
NE AND SW QUADRANTS...360 NM SE QUADRANT AND 240 NM NW QUADRANT 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 480 
NM E SEMICIRCLE AND 360 NM W SEMICIRCLE WINDS 20 KT OR LESS. SEAS
8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ROSA NEAR 17.8N 117.7W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM E SEMICIRCLE AND 100 NM W SEMICIRCLE. SEAS 12 FT
OR GREATER WITHIN 240 NM OF CENTER WITH SEAS TO 42 FT. ELSEWHERE
WITHIN 240 NM N SEMICIRCLE...300 NM SE QUADRANT AND 180 NM SW 
QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. WITHIN 150 NM SE OF 
A LINE FROM 14N116W TO 09N125W S TO SW WINDS 20 TO 25 KT. SEAS 8 
TO 10 FT. REMAINDER OF AREA FROM 08N TO 25N BETWEEN 107W AND 127W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE ROSA NEAR 20.1N 119.4W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE ROSA NEAR 20.1N 119.4W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.120 HOUR FORECAST TROPICAL STORM ROSA NEAR 20.1N 119.4W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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 W OF AREA NEAR 11N142W AT 1008 MB. FROM 12N TO 17N W OF
137W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL.
.12 HOUR FORECAST LOW PRES WELL W OF AREA. OVER FORECAST WATERS
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 95.5W N TO NE
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.18 HOUR FORECAST NEW LOW PRES NEAR 11.5N93W 1009 MB. FROM 12N TO
14N BETWEEN 91W AND 95W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9
FT.
.24 HOUR FORECAST LOW PRES NEAR 11N94W 1008 MB. WITHIN 180 NM N 
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES NEAR 11.5N98.5W 1006 MB. WITHIN 240 
NM N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. WITHIN 120 NM
S SEMICIRCLE 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 2030 UTC WED SEP 26...

.HURRICANE ROSA...NUMEROUS MODERATE SCATTERED STRONG WITHIN 120 
NM NE QUADRANT AND 180 NM SE QUADRANT. SCATTERED MODERATE TO 
STRONG WITHIN 180 NM W SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N74W TO 08N98W THEN RESUMES 
FROM 13N116W TO 11N125W TO 11N136W. SCATTERED MODERATE TO STRONG 
FROM 03N TO 10N E OF 83W...FROM 08N TO 14.5N BETWEEN 87W AND 
97W...FROM 04N TO 07N BETWEEN 93W AND 96W...FROM 07N TO 12N 
BETWEEN 100W AND 106W...AND FROM 13N TO 15N BETWEEN 120W AND 
125W. SCATTERED MODERATE FROM 09N TO 12N BETWEEN 114W AND 120W 
AND ALSO FROM 06N TO 12N BETWEEN 123W AND 132W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.