000
FZPN03 KNHC 190920
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU OCT 19.
24 HOUR FORECAST VALID 0600 UTC FRI OCT 20.
48 HOUR FORECAST VALID 0600 UTC SAT OCT 21.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO 
14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 
TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE OF 
A LINE FROM 16N95W TO 15N95W TO 13N96.5W N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 11 FT. REMAINDER OF AREA FROM 09N TO 13N BETWEEN 
95W AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND 
SW SWELL.
.12 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 15N95W TO 13.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 11N TO 13N 
BETWEEN 95W AND 98W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED 
NE AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 15N95W TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.S OF 06N W OF 131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT 
PRIMARILY IN SE SWELL.
.24 HOUR FORECAST S OF 03N W OF 134W WINDS 20 KT OR LESS. SEAS 8 
9 FT IN MIXED SE AND S SWELL. S OF 01S BETWEEN 92W AND 105W... 
AND S OF 01S BETWEEN 115 AND 120W WINDS 20 KT OR LESS. SEAS 8 FT 
IN S SWELL.
.48 HOUR FORECAST FROM 02N TO 05N BETWEEN 80W AND 85W WINDS 20 
KT OR LESS. SEAS 8 FT IN SW SWELL.

.18 HOUR FORECAST COLD FRONT APPROACHING 30N140W. NW OF A LINE 
FROM 30N137W TO 28N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N134W TO 28N140W.
NW OF FRONT WINDS 20 KT OR LESS. SEAS 12 TO 16 FT IN NW SWELL. 
ELSEWHERE NW OF A LINE FROM 30N130W TO 25N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN NW SWELL.
.36 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N122W TO 28N140W.
N OF 28N E OF 117W NW WINDS 20 TO 25 KT. SEAS TO 8 FT. NW OF A 
LINE FROM 30N125W TO 23N140W WINDS 20 KT OR LESS. SEAS 12 TO 16 
FT IN NW SWELL. ELSEWHERE NW OF A LINE FROM 30N120W TO 19N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. N OF 28N E OF 122W... 
AND FROM 24N TO 28N E OF 117W NW WINDS 20 TO 25 KT. SEAS 8 TO 11 
FT...EXCEPT 11 TO 15 FT N OF 28N. ELSEWHERE N OF A LINE FROM 
29N116W TO 23N135W TO 30N140W WINDS 20 KT OR LESS. SEAS 12 TO 15 
FT IN NW SWELL. REMAINDER OF THE AREA NW OF A LINE FROM 30N115W 
TO 24N113W TO 11N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW 
SWELL.

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

CONVECTION VALID AT 0900 UTC THU OCT 19...

.TROPICAL WAVE N OF 08N ALONG 85W...SCATTERED MODERATE ISOLATED 
STRONG WITHIN 150 NM E OF THE WAVE AXIS. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 08N100W TO 
10N120W. THE INTERTROPICAL CONVERGENCE ZONE AXIS CONTINUES FROM 
10N120W TO 11N130W TO 09N140W. SCATTERED MODERATE IS FROM 07N TO 
09N BETWEEN 91W AND 105W. ISOLATED MODERATE IS FROM 08N TO 11N W 
OF 110W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.