816 
FZPN03 KNHC 201519
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED APR 20 2022

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED APR 20.
24 HOUR FORECAST VALID 1200 UTC THU APR 21.
48 HOUR FORECAST VALID 1200 UTC FRI APR 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 26N BETWEEN 114W AND 116W NW WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST FROM 25N TO 28N E OF 115W NW WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 25N TO 28N BETWEEN 114W AND 116W NW WINDS 
20 TO 25 KT. SEAS LESS THAN 8 FT.

.N OF 29N W OF 136W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW 
SWELL. 
.12 HOUR FORECAST NW OF A LINE FROM 30N132W TO 27N140W WINDS 20 
KT OR LESS. SEAS 8 TO 11FT IN NW SWELL.
.24 HOUR FORECAST NW OF A LINE FROM 30N128W TO 23N140W WINDS 20 
KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL...EXCEPT 12 TO 15 FT 
NW OF A LINE FROM 30N134W TO 27N140W.
.36 HOUR FORECAST NW OF A LINE FROM 30N124W TO 20N134W TO 
12N138W TO 13N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW 
SWELL...EXCEPT 12 TO 16 FT NW OF A LINE FROM 30N127W TO 25N140W.
.48 HOUR FORECAST NW OF A LINE FROM 30N118W TO 20N126W TO 
10N132W TO 11N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW 
SWELL...EXCEPT 12 TO 15 FT NW OF A LINE FROM 30N123W TO 
25N130W TO 23N140W.

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

CONVECTION VALID AT 1500 UTC WED APR 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM THE COSTA RICA/PANAMA BORDER TO 
06N95W TO 08N110W TO 10N125W TO LOW PRESSURE OF 1010 MB NEAR 
10N137W. THE ITCZ EXTENDS FROM 10N137W TO BEYOND 07N140W.
SCATTERED MODERATE CONVECTION IS NOTED S OF 10N BETWEEN 80W AND 
120W. MOST OF THIS CONVECTIVE ACTIVITY IS ALONG AND S OF THE 
TROUGH AXIS.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.