000
FZPN03 KNHC 171603
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC TUE OCT 17.
24 HOUR FORECAST VALID 1200 UTC WED OCT 18.
48 HOUR FORECAST VALID 1200 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 
10 TO 15 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 
15N95W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 9 TO 21 FT. 
REMAINDER OF AREA FROM 10N TO 13N BETWEEN 94W AND 100W 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 
14N95.5W...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 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.
.30 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W... 
...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. 
SEAS 9 TO 14 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO 
15N95W TO 14N95.5W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 12 FT. REMAINDER OF AREA FROM 08N TO 14N BETWEEN 93W AND 101W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND SW SWELL. 
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 15N95W TO 
14N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 
KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 60 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 10N TO 13N BETWEEN 94W AND 98W WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND SW SWELL.

.SYNOPSIS AND FORECAST.

.RAPIDLY WEAKENING LOW PRES NEAR 23N127W 1013 MB. WITHIN 210 NM 
NE AND 180 NM SE QUADRANTS OF LOW WINDS 20 KT OR LESS. SEAS 8 TO 
10 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES TO WEAKEN TO A TROUGH ALONG 128W FROM 
21N TO 28N. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  

.LOW PRES NEAR 15N138W 1010 MB. WITHIN 60 NM NE SEMICIRCLE OF 
LOW WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE FROM 14N TO 19N W 
OF 134W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL. 
.24 HOUR FORECAST LOW PRES TO WEAKEN TO A TROUGH JUST W OF 140W.
FROM 15N TO 20N W OF 134W WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED SWELL.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN AREA BOUNDED BY 19N121W TO 15N110W TO 09N103W TO 06N97W 
TO 01N109W TO 03.4S111W TO 03.4S120W TO 00N120W TO 00N140W TO 
09N128W TO 19N121W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED 
SE AND SW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 15N135W TO 16N123W TO 
11N114W TO 04N122W TO 03N131W TO 10N132W TO 15N135W WINDS 20 KT 
OR LESS. SEAS 8 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST S OF 06N W OF 132W WINDS 20 KT OR LESS. SEAS 8 
FT PRIMARILY IN SE SWELL. S OF LINE FROM 00N120W TO 03.4S100W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SE TO S SWELL.

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

CONVECTION VALID AT 1530 UTC TUE OCT 17...

.LOW PRES NEAR 23N127W...SCATTERED MODERATE WITHIN 30 NM OF 
24N123W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
THE MONSOON TROUGH AXIS EXTENDS FROM 09N79W TO 09N88W TO 08N100W 
TO 09N112W. THE ITCZ CONTINUES FROM 09N112W TO 09N124W TO 
13N138W. SCATTERED MODERATE TO STRONG IS WITHIN 180 NM N OF AXIS 
BETWEEN 113W AND 118W...AND ALSO WITHIN 120 NM N OF AXIS BETWEEN 
118W AND 121W. SCATTERED MODERATE ISOLATED STRONG IS S OF THE 
AXIS BETWEEN 80W AND 83W. SCATTERED MODERATE WITHIN 30 NM OF 
AXIS BETWEEN 92W AND 94W...AND BETWEEN 105W AND 108W. 

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.