000
FZPN03 KNHC 171546
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE APR 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC TUE APR 17.
24 HOUR FORECAST VALID 1200 UTC WED APR 18.
48 HOUR FORECAST VALID 1200 UTC THU APR 19.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM OF LINE FROM 16N95W TO 14.5N95.5W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 8 TO 12 FT. 
ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO 14.5N95W TO 
12.5N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER 
OF AREA FROM 04N TO 14N BETWEEN 93W AND 100W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN N TO NE SWELL. FROM 04N TO 18N BETWEEN 
100W AND 110W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED NE 
AND NW SWELL.
.03 HOUR FORECAST WITHIN 45 NM OF A LINE FROM 16N95W TO 
13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
30 KT. SEAS 8 TO 11 FT. OTHERWISE...LITTLE CHANGE.
.12 HOUR FORECAST GULF OF TEHUANTEPEC WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. 

.SYNOPSIS AND FORECAST.

.NW OF LINE FROM 28N115W TO 17N110W TO 03.4S110W TO 00N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED NW AND NE SWELL... 
EXCEPT MIXED SW AND NE SWELL S OF 03N BETWEEN 110W AND 120W. 
.24 HOUR FORECAST N OF 10N AND W OF 112W TO LINE FROM 30N124W TO 
24N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NW AND NE 
SWELL. ELSEWHERE S OF 16N BETWEEN 90.5N AND 127W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 11N TO 22N W OF 116W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN MIXED NW AND NE SWELL. S OF 11N BETWEEN 90.5W 
AND 126W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.FROM 09.5N TO 12.5N E OF 89W...INCLUDING GULF OF PAPAGAYO...NE 
WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 09N TO 11.5N BETWEEN 89W 
AND 91W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NE AND NW 
SWELL.
.24 HOUR FORECAST FROM 10N TO 12N E OF 91W...INCLUDING GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 10.5N TO 12N E OF 88W...INCLUDING GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.COLD FRONT FROM 31N113W TO 26N117W. N OF FRONT E OF 117.5W NW 
TO N WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.06 HOUR FORECAST FRONT ILL DEFINED. N OF 27N E OF 117W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.12 HOUR FORECAST N OF 28N E OF 117W NW TO N WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.24 HOUR FORECAST N OF 28N E OF 117W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN NW SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST N OF 24N E OF 120W WINDS 20 KT OR LESS. SEAS 
TO 8 FT IN NW SWELL. 

.COLD FRONT FROM 31N113W TO 26N117W. GULF OF CALIFORNIA N OF 
FRONT NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.06 HOUR FORECAST GULF OF CALIFORNIA 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 1500 UTC TUE APR 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM 10N71.5W TO 06.5N79W TO 09N84W TO 
05.5N90W. THE ITCZ STRETCHES FROM 05.5N90W TO 08N112W TO 07N120W 
TO BEYOND 08N140W. SCATTERED MODERATE TO STRONG CONVECTION IS 
FROM 03.5N TO 07N E OF 92W TO THE COAST OF COLOMBIA. SCATTERED 
MODERATE TO STRONG CONVECTION IS NOTED FROM 04.5N TO 13N BETWEEN 
104W AND 140W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.