000
FZPN03 KNHC 112112
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU OCT 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1800 UTC THU OCT 11.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 12.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 13.

.WARNINGS.
 
...TROPICAL STORM WARNING...
.TROPICAL STORM SERGIO NEAR 23.5N 116.7W 994 MB AT 2100 UTC OCT 
11 MOVING NE OR 045 DEG AT 20 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM OF CENTER 
EXCEPT 120 NM SE QUADRANT. WINDS 20 TO 33 KT AND SEAS 12 FT OR 
GREATER WITHIN 180 NM N AND 240 NM S SEMICIRCLES WITH SEAS TO 21 
FT. ELSEWHERE WITHIN AREA BOUNDED BY 28N115W TO 15N110W TO 
12N125W TO 20N127W TO 28N115W WINDS 20 KT OR LESS. SEAS TO 10 FT 
PRIMARILY IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION SERGIO INLAND NEAR 28.5N 
110.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT NEAR CENTER. 
EPAC WITHIN 90 NM OF LINE FROM 24N112W TO 27N116 NW WINDS 20 TO 
30 KT. SEAS 10 TO 15 FT. REMAINDER EPAC BOUNDED BY LINE FROM 
30N116W TO 20N105W TO 20N122W TO 30N116W WINDS 20 KT OR LESS. 
SEAS TO 11 FT PRIMARILY IN MIXED SWELL. GULF OF CALIFORNIA 
ELSEWHERE FROM 25N TO 29N WINDS 20 TO 30 KT. SEAS TO 12 FT. 
SCATTERED TSTMS IN BANDS WITHIN 240 NM OF CENTER. 
.36 HOUR FORECAST POST-TROPICAL SERGIO NEAR 31.0N 107.5W. 
MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT NEAR CENTER. OVER 
WATER WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST...DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS 
THAN 8 FT.

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.

.WITHIN AREA BOUNDED BY 15N110W TO 13N96W TO 03.4S110W TO 
07N128W TO 15N110W WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY 
IN SW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 20N122W TO 20N105W TO 
07N80W TO 03.4S100W TO 07N130W TO 20N122W TO 20N122W WINDS 20 KT 
OR LESS. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 13N100W TO 07N80W TO 
03.4S90W TO 03.4S120W TO 13N100W WINDS 20 KT OR LESS. SEAS TO 8 
FT IN SW SWELL.

.N OF 27N BETWEEN 123W AND 132W WINDS 20 KT OR LESS. SEAS TO 8 
FT PRIMARILY IN NW SWELL. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST LOW PRES 10.5N136W 1010 MB. WITHIN 150 NM SE 
SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES 13N133W 1010 MB. WITHIN 60 NM SE 
SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 8 FT.  

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

CONVECTION VALID AT 2100 UTC THU OCT 11...

.TROPICAL STORM SERGIO...SCATTERED MODERATE ISOLATED STRONG 
WITHIN 180 NM NW QUADRANT SURROUNDED BY SCATTERED MODERATE 
ELSEWHERE WITHIN 150 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 14N87W TO 16N101W...RESUMES FROM 14N124W
TO 10N130W TO 10N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 
75 NM OF LINE FROM 08N78W TO 07N81W TO 09N85W...WITHIN 150 NM OF
LINE FROM 13N96W TO 14N99W TO 07N117W AND WITHIN 120 NM OF LINE 
FROM 08N123W TO 09N140W.  

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.