000
FZPN03 KNHC 191542
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC THU APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU APR 19.
24 HOUR FORECAST VALID 1200 UTC FRI APR 20.
48 HOUR FORECAST VALID 1200 UTC SAT APR 21.

.WARNINGS.

...GALE WARNING...
.12 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 
95.5W N WINDS 25 TO 35 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W 
INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 8 TO 
14 FT. ELSEWHERE WITHIN 75 NM OF A LINE FROM 16N95W TO 11N97W N 
TO NE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. FROM 08N TO 12N 
BETWEEN 100W AND 105W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE 
AND SW SWELL. 
.30 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14.5N95.5W 
TO 12N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
30 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 
16N95W TO 11N97W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED 
NE AND SW SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N96W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 11 FT. ELSEWHERE FROM 12N TO 15N BETWEEN 94W AND 97W WINDS 
20 KT OR LESS. SEAS TO 9 FT IN MIXED NE AND SW SWELL.

.SYNOPSIS AND FORECAST.

.FROM 11N TO 15N BETWEEN 128W AND 135W NE WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT. ELSEWHERE FROM 12N TO 24N W OF 127W WINDS 20 KT 
OR LESS. SEAS TO 8 FT IN NW SWELL. 
.24 HOUR FORECAST TROUGH FROM 05N128W TO 13N125W. S OF 17N TO A 
LINE FROM 11N120W TO 05N140W NE WINDS 20 TO 25 KT. SEAS 8 TO 11 
FT. ELSEWHERE W OF A LINE FROM 25N140W TO 15N110W TO 05N123W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL. 
.48 HOUR FORECAST TROUGH FROM 06N128W TO 15N122W. FROM 08N TO 
14N BETWEEN 122W AND 129W NE WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. 
ELSEWHERE W OF A LINE FROM 30N133W TO 11N113W TO 03N135W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.

.S OF LINE FROM 03.4S92W TO 11N94W TO 13N117W TO 00N121W WINDS 
20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10N89W...INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N86W TO 
10N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS 
TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N86W TO 
10N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS 
TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE. 

.12 HOUR FORECAST N OF 25N E OF 116W...INCLUDING SEBASTIAN 
VIZCAINO BAY...NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST N OF 22N E OF 116W...INCLUDING SEBASTIAN 
VIZCAINO BAY...NW WINDS 20 TO 25 KT. SEAS TO 8 FT. ELSEWHERE E 
OF A LINE FROM 30N124W TO 22N115W WINDS 20 KT OR LESS. SEAS 8 TO 
9 FT IN NW SWELL. 
.48 HOUR FORECAST N OF 29N BETWEEN 120W AND 129W WINDS 20 KT OR 
LESS. SEAS 8 FT IN NW SWELL.

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

CONVECTION VALID AT 1430 UTC THU APR 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 07N77W TO 06N94W. ITCZ FROM 06N94W TO 
07N115W TO 05N130W TO BEYOND 06N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 120 NM EITHER SIDE OF TROUGH AND ITCZ 
AXIS BETWEEN 90W AND 119W. NUMEROUS MODERATE TO STRONG FROM 03N 
TO 09N BETWEEN 121W AND 132W. 

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.