677 
FZPN03 KNHC 180310
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
0430 UTC TUE SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MON SEP 18.
24 HOUR FORECAST VALID 0000 UTC TUE SEP 19.
48 HOUR FORECAST VALID 0000 UTC WED SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST LOW PRES 1004 MB...POSSIBLE TROPICAL 
CYCLONE...NEAR 21N113W. WITHIN 210 NM E SEMICIRCLE S TO SE WINDS 
20 TO 25 KT. SEAS TO 8 FT.
.30 HOUR FORECAST GULF OF CALIFORNIA N OF 29.5N SE TO S WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW PRES 1002 MB...POSSIBLE TROPICAL 
CYCLONE...NEAR 24N113W. WITHIN 240 NM E SEMICIRCLE...INCLUDING 
THE GULF OF CALIFORNIA...S WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
ELSEWHERE N OF 29.5N IN THE GULF OF CALIFORNIA SE TO S WINDS 20 
TO 25 KT. SEAS TO 8 FT.

.LOW PRES 1006 MB NEAR 15N120W. WITHIN 300 NM NW QUADRANT NE 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 12N TO 15N 
BETWEEN 111W AND 116W WINDS 20 KT OR LESS. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES 1005 MB NEAR 15N126W. WITHIN 270 NM 
NW QUADRANT NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.30 HOUR FORECAST LOW PRES NEAR 15N125W 1004 MB. WITHIN 300 NM 
NW SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST LOW PRES 1005 MB NEAR 14N128W. WITHIN 165 NM 
NW QUADRANT NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.REMNANT TROUGH OF PAUL W OF AREA. FROM 16N TO 23N W OF 134W 
WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE SWELL.
.12 HOUR FORECAST FROM 15N TO 23N W OF 134W NE TO E WINDS 20 TO 
25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST FROM 14N TO 21N W OF 133W NE TO E WINDS 20 TO 
25 KT. SEAS 8 TO 9 FT.  
.48 HOUR FORECAST FROM 12N TO 20N W OF 133W WINDS 20 KT OR LESS. 
SEAS TO 8 FT IN NE SWELL. 

.30 HOUR FORECAST N OF 28N BETWEEN 118W AND 122W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN N TO NW SWELL.
.48 HOUR FORECAST N OF 28N BETWEEN 119W AND 127W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN N TO NW SWELL.

.12 HOUR FORECAST S OF 02S AND W OF 116W WINDS 20 KT OR LESS. 
SEAS TO 8 FT IN SW SWELL.
.24 HOUR FORECAST S OF LINE FROM 03.4S110W TO 01S120W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.42 HOUR FORECAST LOW PRES NEAR 06N109W 1012. WITHIN 300 NM S 
SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL. 
ELSEWHERE S OF 01S BETWEEN 105W AND 112W WINDS 20 KT OR LESS. 
SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 0300 UTC TUE SEP 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N75W TO 10N90W TO 09N105W...RESUMING FROM 
20N105W TO A 1007 MB LOW NEAR 18N113W TO A 1006 MB LOW NEAR 
15N120W TO 12N126W. THE ITCZ BEGINS NEAR 12N126W AND CONTINUES 
BEYOND 12N140W. SCATTERED MODERATE FROM 07N TO 11N BETWEEN 82W 
AND 89W...FROM 07N TO 13N BETWEEN 103W AND 108W...FROM 12N TO 
20N E OF 118W...FROM 10N TO 19N BETWEEN 120W AND 126W...AND FROM 
07N TO 16N W OF 133W. 

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.