000
FZPN03 KNHC 230241
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT SEP 23.
24 HOUR FORECAST VALID 0000 UTC SUN SEP 24.
48 HOUR FORECAST VALID 0000 UTC MON SEP 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 17.5N104.5W 1006 MB. WITHIN 120 NM S SEMICIRCLE 
WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL. SCATTERED 
SHOWERS AND THUNDERSTORMS FROM 16.5N TO 21.5N BETWEEN 104.5W AND 
108.5W.  
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
19N106.5W 1005 MB. WITHIN 90 NM SW SEMICIRCLE 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 NE AND 120 NM SW SEMICIRCLES 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 

.FROM 10N TO 13N BETWEEN 103W AND 115W SW TO W WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 10N TO 14.5N BETWEEN 93W AND 
110W...AND FROM 04N TO 13N BETWEEN 110W AND 138W...WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN MIXED SE SWELL AND S WIND WAVES.
.24 HOUR FORECAST FROM 09.5N TO 13N BETWEEN 103W AND 114W SW TO 
W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 08.5N TO 
14N BETWEEN 100W AND 120W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
MIXED SE SWELL AND S WIND WAVES.
.48 HOUR FORECAST FROM 09N TO 12.5N BETWEEN 94W AND 112W SW TO W 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 08N TO 14N 
BETWEEN 94W AND 114W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED 
SWELL.

.FROM 16N TO 22N BETWEEN 113W AND 120W WINDS 20 KT OR LESS. SEAS 
8 FT IN MIXED NW AND NE SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.N OF 25N BETWEEN 114.5W AND 123W WINDS 20 KT OR LESS. SEAS TO 8 
FT IN NW SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 01N BETWEEN 85W AND 120W WINDS 20 KT OR LESS. SEAS TO 9 FT 
IN SE SWELL.
.24 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 0200 UTC SAT SEP 23... 

INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 08N74W TO 09N83.5W TO 14N92W TO LOW PRES 
NEAR 17.5N104.5W 1006 MB TO 12N112W TO LOW PRES NEAR 14N137W 
1010 MB TO BEYOND 10N140W. SCATTERED MODERATE TO STRONG FROM 07N 
TO 14N BETWEEN 87W AND 125W...AND FROM 08N TO 13N BETWEEN 128W 
AND 140W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.