000
FZPN03 KNHC 170930
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC TUE OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE OCT 17.
24 HOUR FORECAST VALID 0600 UTC WED OCT 18.
48 HOUR FORECAST VALID 0600 UTC THU OCT 19.

.WARNINGS.

...GALE WARNING... 
.WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO 14N96W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS 
9 TO 14 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 15N95W 
TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER 
OF THE AREA FROM 10N TO 13N BETWEEN 94W AND 100W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN MIXED NE AND SW SWELL. 
.06 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO 
13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 
KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W 
TO 15N95W TO 13N96W TO 11N99W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 12 FT. REMAINDER OF THE AREA FROM 10N TO 13N BETWEEN 94W AND 
101W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND SW 
SWELL. 
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO 
13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 
KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W 
TO 15N95W TO 13N96W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 12 FT. REMAINDER OF THE AREA FROM 08N TO 12N BETWEEN 94W AND 
101W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND SW 
SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO 
14N95.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 
35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 
16N95W TO 15N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 
10 FT. REMAINDER OF AREA FROM 09N TO 12N BETWEEN 94W AND 99W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND SW SWELL.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 22N126W 1008 MB. WITHIN 120 NM NE SEMICIRCLE OF 
LOW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 16N TO 
25N BETWEEN 120W AND 127W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN 
MIXED SWELL.
.24 HOUR FORECAST WEAKENING LOW PRES NEAR 24N128W 1010 MB. 
WITHIN 90 NM N SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 8 FT. 
.30 HOUR FORECAST LOW DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS 
THAN 8 FT.  

.LOW PRES NEAR 14N136W 1007 MB. WITHIN 120 NM N SEMICIRCLE OF 
LOW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 12N TO 16N 
W OF 132W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL. 
.24 HOUR FORECAST TROUGH FROM 17N139W TO 12N140W. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.S OF A LINE FROM 00N135W TO 05N135W TO 07N120W TO 10N116W TO 
15N117W TO 10N102W TO 03.4S112W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT PRIMARILY IN SW SWELL.
.24 HOUR FORECAST FROM 10N TO 14N BETWEEN 115W AND 125W...AND S 
OF 05N W OF 130W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SE AND 
SW SWELL.
.48 HOUR FORECAST S OF 06N W OF 131W WINDS 20 KT OR LESS. SEAS 
8 FT PRIMARILY IN SE SWELL.  

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

CONVECTION VALID AT 0900 UTC TUE OCT 17...

.LOW PRES NEAR 22N126W...SCATTERED MODERATE WITHIN 150 NM IN 
THE NE QUADRANT. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
THE MONSOON TROUGH EXTENDS ACROSS PANAMA AND COSTA RICA TO NEAR 
09N85W TO 08N95W TO 08N102W. THE ITCZ CONTINUES FROM 08N102W TO 
09N108W TO 08N120W TO 11N130W TO LOW PRESSURE 1007 MB NEAR 
14N136W TO 11N140W. SCATTERED MODERATE IS NOTED FROM 08N TO 10N 
BETWEEN 95W AND 103W. SCATTERED MODERATE ISOLATED STRONG IS 
WITHIN ABOUT 180 NM N OF ITCZ AXIS BETWEEN 111W AND 118W. 
SIMILAR CONVECTION IS NEAR 11N136W.

$$

.FORECASTER GR. NATIONAL HURRICANE CENTER.