000
FZPN03 KNHC 151520
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC SUN OCT 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN OCT 15.
24 HOUR FORECAST VALID 1200 UTC MON OCT 16.
48 HOUR FORECAST VALID 1200 UTC TUE OCT 17.

.WARNINGS.

...GALE WARNING...
.WITHIN 45 NM OF LINE FROM 16N95W TO 15N95W TO 14N95.5W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 9 FT.
.21 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. WITHIN 45 NM OF LINE FROM 16N95W TO 
14N95.5W TO 13N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LITTLE CHANGE. 
.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 
40 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 
16N95W TO 14N95.5W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 11 FT. REMAINDER OF THE AREA FROM 10N TO 15N BETWEEN 93W AND 
100W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW 
SWELL.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 15N117.5W 1006 MB. FROM 11N TO 19N BETWEEN 114W 
AND 117W S TO SE WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. ELSEWHERE 
FROM 10N TO 21N BETWEEN 111W AND 124W WINDS 20 KT OR LESS. SEAS 
8 TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
17N123W 1006 MB. WITHIN 240 NM NE SEMICIRCLE OF LOW WINDS 20 TO 
30 KT. SEAS 9 TO 12 FT. ELSEWHERE FROM 14N TO 23N BETWEEN 114W 
AND 128W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
20N126W 1008 MB. WITHIN 210 NM NE SEMICIRCLE OF LOW SE WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 17N TO 26N BETWEEN 
120W AND 128W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.

.W OF LINE FROM 28N140W TO 12N120W TO 03N97W TO 03.4S92W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 10N TO 16N BETWEEN 132W AND 138W AND S OF 
14N BETWEEN 98W AND 132W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN 
PRIMARILY SE AND SW SWELL.
.48 HOUR FORECAST S OF A LINE FROM 00N139W TO 15N125W TO 
13N100W WINDS 20 KT OR LESS. SEAS 8 FT IN SE AND SW SWELL.

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

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

CONVECTION VALID AT 1400 UTC SUN OCT 15...

.LOW PRES NEAR 15N117.5W 1006MB. NUMEROUS MODERATE TO STRONG 
FROM 13N TO 20N BETWEEN 115W AND 120W.   

.TROPICAL WAVE ALONG 89W N OF 05N. SCATTERED MODERATE FROM 07N 
TO 13N BETWEEN 90W AND 93W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N78W TO 07N101W THEN 
TRANSITIONS TO AN ITCZ AXIS TO NEAR 13N114W. THE MONSOON TROUGH 
RESUMES NEAR 13N119W TO LOW PRES NEAR 10N131W 1007 MB TO 
09N140W. SCATTERED MODERATE ISOLATED STRONG FROM 08N TO 12N 
BETWEEN 95W AND 102W...FROM 07N TO 11N BETWEEN 118W AND 
122W...AND WITHIN 90 NM EITHER SIDE OF THE MONSOON TROUGH AXIS W 
OF 128W. 

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.