000
FZPN03 KNHC 180336
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT DEC 18 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT DEC 18.
24 HOUR FORECAST VALID 0000 UTC SUN DEC 19.
48 HOUR FORECAST VALID 0000 UTC MON DEC 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 10N86W TO 09N88W TO 10N90W TO 12N88W TO 12N86W TO 
10N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 15N133W TO 16N140W TO 21N140W TO 21N135W TO 18N130W TO 
15N133W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE 
WITHIN 06N107W TO 04N140W TO 24N140W TO 26N131W TO 16N109W TO 
06N107W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL. 
.24 HOUR FORECAST WITHIN 11N121W TO 08N131W TO 10N140W TO 21N140W
TO 21N128W TO 11N121W NE TO E WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW TO N SWELL. 
.48 HOUR FORECAST WITHIN 09N124W TO 09N140W TO 18N140W TO 14N130W
TO 15N121W TO 09N124W WINDS 20 KT OR LESS. SEAS TO 8 FT.

.WITHIN 26N118W TO 23N125W TO 24N128W TO 30N133W TO 30N118W TO
26N118W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 26N110W TO 26N111W TO 30N114W TO 32N114W TO 29N112W TO
26N110W...INCLUDING GULF OF CALIFORNIA...NW TO N WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE. 
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.42 HOUR FORECAST COLD FRONT NW OF THE AREA. WITHIN 29N137W TO 
29N139W TO 29N140W TO 30N140W TO 30N137W TO 29N137W NW WINDS 20 
TO 25 KT. SEAS BUILDING TO 8 FT. 
.48 HOUR FORECAST COLD FRONT FROM 29N134W TO 27N139W. N OF THE 
FRONT WITHIN 29N136W TO 27N139W TO 27N140W TO 30N140W TO 30N135W 
TO 29N136W NW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN NW SWELL.

.48 HOUR FORECAST WITHIN 14N94W TO 14N95W TO 16N96W TO 16N95W TO
16N94W TO 14N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW WINDS 
20 TO 30 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0350 UTC SAT DEC 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N84W TO 09N94W. THE ITCZ 
CONTINUES FROM 09N94W TO 07N130W TO BEYOND 08N140W. SCATTERED 
MODERATE FROM 07N TO 13N BETWEEN 97W TO 112W AND FROM 06N TO 13N
BETWEEN 113W TO 140W. 

$$
.FORECASTER TORRES. NATIONAL HURRICANE CENTER.