000
FZPN03 KNHC 172138
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED OCT 17.
24 HOUR FORECAST VALID 1800 UTC THU OCT 18.
48 HOUR FORECAST VALID 1800 UTC FRI OCT 19.

.WARNINGS.

...GALE WARNING...

.FROM 08N TO 12N BETWEEN 87W AND 97W SW TO W WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. N OF 12N BETWEEN 93W AND 96W...INCLUDING GULF 
OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N94W 1005 MB. WITHIN 105 NM S SEMICIRCLE WINDS 30 TO 35 KT. 
ELSEWHERE N OF 11N BETWEEN 90W AND 96W WINDS 20 TO 30 KT. SEAS 
10 TO 12 FT. REMAINDER AREA N OF 08N BETWEEN 90W AND 97W WINDS 
20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N98W 1002 MB. WITHIN 90 NM E SEMICIRCLE WINDS 35 TO 50 KT. 
SEAS 12 TO 15 FT. ELSEWHERE WITHIN 120 NM OF LOW CENTER WINDS 20 
TO 25 KT. SEAS 8 TO 12 FT. REMAINDER AREA N OF 10N BETWEEN 93W 
AND 99W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 

.SYNOPSIS AND FORECAST.   

.DISSIPATING STATIONARY FRONT FROM 30N136W TO 24N140W. NW OF A 
LINE FROM 30N134W TO 24N140W WINDS 20 KT OR LESS. SEAS TO 9 FT 
IN NW SWELL.
.24 HOUR FORECAST FRONT DISSIPATED. N OF 12N W OF 132W WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST LOW PRES NEAR 12N139 1009 MB. FROM 11N TO 20N 
W OF 131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.

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

CONVECTION VALID AT 2115 UTC WED OCT 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N83W TO LOW PRES NEAR 12N92W TO 12N112W TO 
08N120W TO 10N130W TO 10N140W. SCATTERED MODERATE WITHIN 180 NM 
S OF MONSOON TROUGH E OF 95W. SCATTERED MODERATE ISOLATED STRONG 
N OF 11N BETWEEN 95W AND 100W AND FROM 06N TO 12N W OF 127W. 

$$
.FORECASTER NR. NATIONAL HURRICANE CENTER.