000
FZPN03 KNHC 152139
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SUN APR 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SUN APR 15.
24 HOUR FORECAST VALID 1800 UTC MON APR 16.
48 HOUR FORECAST VALID 1800 UTC TUE APR 17.

.WARNINGS.

...GALE WARNING...
.WITHIN 45 NM OF LINE FROM 16N95W TO 13N96.5W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS 8 TO 16 FT. 
ELSEWHERE WITHIN 90 NM OF LINE FROM 16N95W TO 14N95.5W TO 
12N98W N TO NE WINDS 20 TO 30 KT. SEAS TO 10 FT.
.06 HOUR FORECAST WITHIN 60 NM OF LINE FROM 16N95W TO 15N95W TO 
13N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 45 
KT. SEAS 12 TO 18 FT. ELSEWHERE WITHIN 90 NM OF LINE FROM 16N95W 
TO 13N97W TO 12N100W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14.5N95.5W 
TO 13.5N96.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 
TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 
16N95W TO 14N96W TO 12N98.5W TO 12N102W N TO NE WINDS 20 TO 30 
KT. SEAS 10 TO 14 FT. REMAINDER OF AREA FROM 08N TO 15N BETWEEN 
93W AND 104W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE 
SWELL.
.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 
14N95.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 
35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 
16N95W TO 14N95W TO 12.5N97W N TO NE WINDS 20 TO 30 KT. SEAS 9 
TO 12 FT. REMAINDER OF AREA FROM 04N TO 15N BETWEEN 93W AND 108W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 
14N95.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS TO 10 FT. ELSEWHERE FROM 03N TO 16N BETWEEN 93W AND 
110W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED N TO NE 
SWELL...HIGHEST NEAR 13N96.5W.  

.SYNOPSIS AND FORECAST.

.NW OF LINE FROM 27N114W TO 18N106W TO 12N108W TO 03N130W TO 
02N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED NW AND NE 
SWELL. 
.24 HOUR FORECAST NW OF LINE FROM 28N115W TO 20N110W TO 15N104W 
TO 09N104W TO 00N133W TO 00N140W WINDS 20 KT OR LESS. SEAS 8 TO 
11 FT IN MIXED NW AND NE SWELL...HIGHEST NW PART. 
.48 HOUR FORECAST W OF 110W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN MIXED NW AND NE SWELL.

.18 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING THE 
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST FROM 10N TO 11.5N E OF 89W...INCLUDING THE 
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 10N TO 11.5N E OF 88W...INCLUDING THE 
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 
08N TO 10.5N BETWEEN 88W AND 93W WINDS 20 KT OR LESS. SEAS TO 9 
FT IN MIXED NE AND NW SWELL.

.30 HOUR FORECAST GULF OF CALIFORNIA FROM 29N TO 31N SW TO W 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST TROUGH FROM 30N111.5W TO 26N111.5W. N OF 30N 
NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 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 2115 UTC SUN APR 15...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH EXTENDS FROM 09N73W TO 08.5N85W TO 08.5N96W. THE 
ITCZ STRETCHES FROM 08.5N96W TO 07N1118W TO 08.5N135W TO BEYOND 
08N140W. SCATTERED MODERATE TO STRONG CONVECTION IS NOTED FROM 
04.5N TO 13N BETWEEN 85W AND 111W. SIMILAR CONVECTION IS NOTED 
WITHIN 150 NM N AND 90 NM S OF THE ITCZ BETWEEN 112W AND 137W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.