000
FZPN03 KNHC 182125
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU OCT 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC THU OCT 18.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 19.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 20.

.WARNINGS.

...GALE WARNING...

.LOW PRES NEAR 13N95W 1008 MB. WITHIN 210 NM N 
SEMICIRCLE...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N98W 1006 MB. WITHIN 210 NM NE QUADRANT WINDS 30 TO 35 KT. 
SEAS 8 TO 12 FT. ELSEWHERE FROM 11N TO 15N BETWEEN 94W AND 100W 
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N100W 1007 MB. WITHIN 165 NM NE QUADRANT WINDS 20 TO 25 KT. 
SEAS TO 9 FT.

.SYNOPSIS AND FORECAST.    

.SURFACE TROUGH FROM 30N138W TO 25N140W. AREA OF BROAD LOW 
PRESSURE CENTERED NEAR 12N134W. FROM 12N TO 16N BETWEEN 132W AND 
137W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE N OF 
12N W OF 130W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.24 HOUR FORECAST SURFACE TROUGH DISSIPATED. LOW PRES W OF THE 
AREA. FROM 13N TO 15N W OF 138W NE TO E WINDS 20 TO 25 KT. SEAS 
11 FT. ELSEWHERE FROM 04N TO 25N W OF 130W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST FROM 0N TO 22N W OF 130W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN MIXED SW AND NW SWELL.

.GULF OF CALIFORNIA N OF 29N NW WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  

.36 HOUR FORECAST LOW PRES NEAR 15N108W 1010 MB. WITHIN 150 NM 
NW QUADRANT WINDS 20 KT OR LESS. SEAS TO 8 FT IN NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST LOW PRES NEAR 11N119W 1011 MB. WITHIN 240 NM 
NW QUADRANT WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL.
.48 HOUR FORECAST LOW PRES NEAR 12N119W 1011 MB. WITHIN 240 NM 
NW QUADRANT WINDS 20 KT OR LESS. SEAS TO 8 FT IN NW SWELL.  

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

CONVECTION VALID AT 2115 UTC THU OCT 18...

.LOW PRES NEAR 13N95W...SCATTERED MODERATE WITHIN 270 NM W 
SEMICIRCLE.

.TRPCL WAVE ALONG 89W N OF 08N...SCATTERED MODERATE FROM 09N TO 
14N BETWEEN 86W AND 95W.

.SCATTERED MODERATE N OF 04N E OF 83W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 13N90W TO LOW NEAR 13N95W TO 12N116W TO 08N 
123W TO 12N134W TO 10N140W. SCATTERED MODERATE FROM 10N TO 14N 
BETWEEN 115W AND 118W AND FROM 07N TO 15N W OF 127W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.