000
FZPN03 KNHC 182129
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC MON SEP 18.
24 HOUR FORECAST VALID 1800 UTC TUE SEP 19.
48 HOUR FORECAST VALID 1800 UTC WED SEP 20.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM OTIS NEAR 19.1N 127.6W 1005 MB AT 2100 UTC SEP 
18 MOVING W OR 270 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS 40 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM E 
SEMICIRCLE AND 50 NM NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 
90 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE WITH SEAS TO 22 FT. 
ELSEWHERE WITHIN 90 NM OF THE CENTER WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT IN MIXED SEAS.  REMAINDER OF AREA WITHIN 270 NM OF 
CENTER...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SEAS.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 18.7N 
128.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS 12 FT OR 
GREATER WITHIN 45 NM OF THE CENTER WITH SEAS TO 15 FT. ELSEWHERE 
WITHIN 60 NM OF THE CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT 
IN MIXED SEAS. REMAINDER OF AREA FROM 15N TO 28N BETWEEN 125W 
AND 137W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SEAS.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 16.6N 
130.8W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. FROM 15N TO 
20N W OF 125W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SEAS.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 14.5N 
133.2W. MAXIMUM SUSTAINED WINDS 15 KT GUSTS 20 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED.

...TROPICAL STORM WARNING...
.TROPICAL STORM NORMA NEAR 21.4N 112.8W 1003 MB AT 2100 UTC SEP 
18 MOVING W OR 270 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 40 KT 
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER 
EXCEPT 50 NM SE QUADRANT.  SEAS 12 FT OR GREATER WITHIN 90 NM N 
SEMICIRCLE AND 60 NM S SEMICIRCLE WITH SEAS TO 16 FT. ELSEWHERE 
WITHIN 120 NM OF THE CENTER IN THE N SEMICIRCLE AND 90 NM IN THE 
S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 10 TO 12 FT IN MIXED SEAS. 
REMAINDER OF AREA WITHIN 180 NM OF CENTER WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SEAS.
.24 HOUR FORECAST TROPICAL DEPRESSION NORMA NEAR 21.7N 114.8W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT WITHIN 30 
NM OF THE CENTER IN THE N SEMICIRCLE. ELSEWHERE WITHIN 120 NM OF 
THE CENTER WINDS 20 TO 33 KT. SEAS 8 TO 10 FT IN MIXED SEAS.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW NORMA NEAR 23.0N 
116.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 60 NM 
OF THE CENTER IN THE N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 
FT IN MIXED SEAS.
.72 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.

.24 HOUR FORECAST N OF 29N BETWEEN 120W AND 125W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N SWELL.
.48 HOUR FORECAST CONDITIONS N OF A LINE FROM 20N140W TO 20N125W 
TO 30N117W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N SWELL. 

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

CONVECTION VALID AT 2115 UTC MON SEP 18...

.TROPICAL STORM OTIS...SCATTERED MODERATE WITHIN 180 NM OF THE 
CENTER IN THE NORTHERN QUADRANT.

.TROPICAL STORM NORMA...SCATTERED MODERATE WITHIN 180 NM OF THE 
CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N86W TO 12N97W TO 07N109W TO 
14N121W. IT RESUMES AT 14N133W TO BEYOND 12N140W. SCATTERED 
MODERATE N OF 07N E OF 100W.  SCATTERED MODERATE ISOLATED STRONG 
WITHIN 60 NM OF THE AXIS W OF 133W.

$$
.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.