000
FZPN03 KNHC 230858
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT SEP 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT SEP 23.
24 HOUR FORECAST VALID 0600 UTC SUN SEP 24.
48 HOUR FORECAST VALID 0600 UTC MON SEP 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 17.5N104.5W 1007 MB. WITHIN 120 NM S SEMICIRCLE 
WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
19N106W 1005 MB. WITHIN 90 NM SE AND 60 NM NW SEMICIRCLES WINDS 
20 TO 25 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
19.5N106.5W 1004 MB. WITHIN 90 NM SE AND 60 NM NW SEMICIRCLES 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 

.FROM 11N TO 12N BETWEEN 105W AND 108W AND FROM 10N TO 12N 
BETWEEN 113W AND 118W SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
ELSEWHERE FROM 09N TO 14N BETWEEN 103W AND 123W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SE SWELL AND S WIND WAVES.
.24 HOUR FORECAST FROM 10N TO 12N BETWEEN 102W AND 111W SW TO W 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 08.5N TO 14N 
BETWEEN 100W AND 118W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED 
SE SWELL AND S WIND WAVES.
.48 HOUR FORECAST FROM 09.5N TO 11N BETWEEN 104W AND 108W SW TO 
W WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 08.5N TO 13N 
BETWEEN 93W AND 113W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN 
MIXED SWELL.

.FROM 17N TO 21N BETWEEN 115W AND 118W WINDS 20 KT OR LESS. SEAS 
8 FT IN MIXED NW AND NE SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.N OF 28N BETWEEN 116W AND 123W WINDS 20 KT OR LESS. SEAS TO 8 
FT IN NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 02N BETWEEN 84W AND 96W WINDS 20 KT OR LESS. SEAS TO 9 FT 
IN SE SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0830 UTC SAT SEP 23... 

INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 10N74W TO 11N77W TO 09N84W TO 16N95W TO LOW 
PRES 1007 MB NEAR 18N105W TO 12N126W TO LOW PRES 1011 MB NEAR 
14N137W TO BEYOND 11N140W. SCATTERED MODERATE ISOLATED STRONG 
ALONG AND UP TO 180 NM SW OF TROUGH AXIS BETWEEN 90W AND 96W AND 
FROM 10N TO 12N BETWEEN 129W AND 134W. SCATTERED MODERATE WITHIN 
90 NM EITHER SIDE OF LINE FROM 13N98W TO 11N120W. 

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.