000
FZPN03 KNHC 180930
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC MON SEP 18 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON SEP 18.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 19.
48 HOUR FORECAST VALID 0600 UTC WED SEP 20.

.WARNINGS.

...HURRICANE WARNING...

.HURRICANE OTIS NEAR 18.5N 127.3W 976 MB AT 0900 UTC SEP 18 
MOVING N OR 355 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 
105 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM E 
SEMICIRCLE...40 NM SW QUADRANT AND 50 NM NW QUADRANT. WINDS 20 
TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 90 NM OF CENTER WITH 
SEAS TO 28 FT. ELSEWHERE FROM 14N TO 21N BETWEEN 123W AND 131W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM OTIS NEAR 19.3N 127.9W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 30 NM NW AND SE QUADRANTS...40 NM NE QUADRANT AND 20 NM 
SW QUADRANT. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 
120 N SEMICIRCLE AND 90 NM S SEMICIRCLE WITH SEAS TO 20 FT.
ELSEWHERE FROM 14N TO 28N W OF 123W WINDS 20 KT OR LESS. SEAS 
8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 18.2N 
129.6W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR 
GREATER WITHIN 60 NM NW QUADRANT. ELSEWHERE WINDS 20 TO 33 KT 
WITHIN 90 N SEMICIRCLE AND 60 NM S SEMICIRCLE. SEAS TO 10 TO 11 
FT. REMAINDER OF AREA FROM 16N TO 26N W OF 125W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 16.5N 
132.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 14.7N 
135.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST...DISSIPATED.

...TROPICAL STORM WARNING... 

.TROPICAL STORM NORMA NEAR 21.4N 111.8W 1000 MB AT 0900 UTC SEP 
18 MOVING WNW OR 285 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER 
EXCEPT 50 NM SE QUADRANT. WINDS 20 TO 33 KT AND SEAS 12 FT OR 
GREATER WITHIN 120 NM NE...90 NM SE...75 NM SW...AND 150 NM NW 
QUADRANTS WITH SEAS TO 18 FT. ELSEWHERE OVER FORECAST WATERS 
FROM 18N TO 27N BETWEEN 108W AND 118W...INCLUDING THE GULF OF 
CALIFORNIA S OF 25N. WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM NORMA NEAR 21.8N 113.6W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 30 NM NW AND SE QUADRANTS...40 NM NE QUADRANT AND 0 
NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM N AND 30 NM S 
SEMICIRCLES WITH SEAS TO 14 FT. ELSEWHERE WITHIN 120 NE AND 60 
SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 11 TO 13 FT. REMAINDER 
AREA FROM 19N TO 26N BETWEEN 110W AND 117W WINDS 20 KT OR LESS. 
SEAS 8 TO 13 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW NORMA NEAR 22.8N 
115.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 60 NM 
NE QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 
22N TO 25N BETWEEN 111W AND 115W WINDS 20 KT OR LESS. SEAS 8 TO 
9 FT IN MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW NORMA NEAR 24.2N 
115.8W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 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.

.SYNOPSIS AND FORECAST.

.FROM 15N TO 18N W OF 134W WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED NE AND SE SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH HURRICANE OTIS.

.36 HOUR FORECAST N OF 29N BETWEEN 120W AND 125W WINDS 20 KT OR 
LESS. SEAS 8 FT IN MIXED SWELL.
.48 HOUR FORECAST CONDITIONS N OF 26N W OF 118W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN N SWELL. 

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0900 UTC MON SEP 18...

.HURRICANE OTIS...SCATTERED MODERATE TO STRONG FROM 20N TO 23N
BETWEEN 111W AND 112W. 

.TROPICAL STORM NORMA...SCATTERED MODERATE ISOLATED STRONG 
WITHIN 180 NM N QUADRANT.

.TROPICAL WAVE ALONG 90W/91W S OF 22N. SCATTERED TO NUMEROUS 
STRONG WITHIN 75 NM NE OF LINE FROM 15N98W TO 14N94W TO 13N93W
TO 11N90W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH THROUGH 08N78W TO 11N91W TO 07N107W TO 08N115W... 
RESUMES FROM 15N134W TO 11N140W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN 180 NM S OF TROUGH BETWEEN 93W AND 96W...WITHIN 
300 NM N OF TROUGH BETWEEN 102W AND 105W...AND WITHIN 210 NM S 
OF TROUGH W OF 128W.

$$
.FORECASTER MT. NATIONAL HURRICANE CENTER.