000
FZPN03 KNHC 210907
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC SAT APR 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT APR 21.
24 HOUR FORECAST VALID 0600 UTC SUN APR 22.
48 HOUR FORECAST VALID 0600 UTC MON APR 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30 NM OF LINE FROM 16N95W TO 14N95W...INCLUDING GULF OF 
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO 14N95W TO 13N96W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED N TO NE AND SW 
SWELL. FROM 09N TO 11N BETWEEN 96W AND 101W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN MIXED NE AND SW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.W OF LINE FROM 19N140W TO 13N128W TO 07N140W NE WINDS 20 TO 25 
KT. SEAS 9 TO 10 FT. ELSEWHERE W OF LINE FROM 30N139W TO 19N132W 
TO 13N112W TO 10N112W TO 08N122W TO 06N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL. 
.24 HOUR FORECAST W OF LINE FROM 16N140W TO 15N129W TO 12N127W TO 
10N140W NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE W OF 
LINE FROM 30N135W TO 19N129W TO 10N122W TO 07N140W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. 
.48 HOUR FORECAST W OF LINE FROM 21N140W TO 15N129W TO 10N128W TO 
08N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10.5N88.5W...INCLUDING GULF 
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT IN MIXED NE AND 
SW SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 15 NM OF LINE FROM 11N86W TO 
11N88W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS 
LESS THAN 8 FT.

.12 HOUR FORECAST N OF LINE FROM 30N120W TO 28N131W WINDS 20 KT 
OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST N OF LINE FROM 29N120W TO 26N132W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST N OF 28N BETWEEN 122W AND 132W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN NW SWELL.

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

CONVECTION VALID AT 0845 UTC SAT APR 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 07N77W TO 06N86W TO 05N113W. ITCZ CONTINUES FROM 
05N113W TO BEYOND 05N140W. SCATTERED MODERATE ISOLATED STRONG 
FROM 06N TO 08N BETWEEN 82W AND 84W AND FROM 04N TO 10N BETWEEN 
108W AND 113W. ISOLATED MODERATE AND STRONG WITHIN 60 NM EITHER 
SIDE OF A LINE FROM 08N92W TO 04N98W.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.