000
FZPN03 KNHC 182039
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE APR 18 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE APR 18.
24 HOUR FORECAST VALID 1800 UTC WED APR 19.
48 HOUR FORECAST VALID 1800 UTC THU APR 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN COLD FRONT N OF AREA. 30N117W TO 30N123W TO 27N123W TO 
26N120W TO 27N118W TO 30N117W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW SWELL.
.12 HOUR FORECAST COLD FRONT FROM 30N115W TO 27N130W. WITHIN 
29N114W TO 30N116W TO 30N118W TO 28N117W TO 27N115W TO 27N114W TO
29N114W NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE 
WITHIN 28N118W TO 30N140W TO 26N140W TO 27N127W TO 27N117W TO 
28N118W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN 26N114W TO 
29N114W TO 30N135W TO 27N140W TO 11N140W TO 26N114W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 21N113W TO 29N115W TO 30N128W TO 
20N140W TO 10N140W TO 09N126W TO 21N113W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NW TO N SWELL.

.WITHIN 11N136W TO 12N140W TO 06N140W TO 07N137W TO 11N136W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH AREA DESCRIBED ABOVE.

.WITHIN 11N86W TO 11N87W TO 10N88W TO 09N88W TO 09N87W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2030 UTC TUE APR 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 07N78W TO 03N110W. ITCZ FROM 03N110W TO 
02N115W...AND FROM 01N130W TO BEYOND 01N140W. ANOTHER ITCZ 
FROM 01S90W TO 03.4S115W. SCATTERED MODERATE FROM 04N TO 08N 
BETWEEN 83W AND 88W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.