000
FZPN03 KNHC 210909
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC TUE DEC 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC TUE DEC 21.
24 HOUR FORECAST VALID 0600 UTC WED DEC 22.
48 HOUR FORECAST VALID 0600 UTC THU DEC 23.

.WARNINGS.

...GALE WARNING...
.WITHIN 15N94W TO 14N95W TO 16N95W TO 16N94W TO 15N94W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 8 TO 10 FT.
ELSEWHERE WITHIN 14N94W TO 13N94W TO 14N96W TO 16N95W TO 16N94W
TO 14N94W N WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST WITHIN 14N94W TO 12N95W TO 13N97W TO 16N96W TO
16N94W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST WITHIN 15N94W TO 14N96W TO 15N96W TO 16N95W TO
16N94W TO 15N94W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.SURFACE TROUGH FROM 19N132W TO 1011 MB LOW PRES NEAR 17N134W TO 
13N141W. E OF THE TROUGH WITHIN 17N129W TO 18N133W TO 21N133W TO
22N131W TO 21N124W TO 17N129W E TO SE WINDS 20 TO 30 KT. SEAS 
LESS THAN 8 FT. 
.18 HOUR FORECAST SURFACE TROUGH FROM 25N129W TO 18N133W. WITHIN
18N130W TO 18N134W TO 20N133W TO 25N129W TO 22N126W TO 18N130W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL. 
.24 HOUR FORECAST CONDITIONS MERGED WITH AREA BELOW. 

.COLD FRONT FROM 30N130W TO 23N139W. N OF THE FRONT WITHIN 27N132W
TO 24N136W TO 23N140W TO 30N140W TO 30N130W TO 27N132W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN NW SWELL. E OF THE FRONT WITHIN 29N126W
TO 28N128W TO 28N130W TO 30N131W TO 30N125W TO 29N126W S TO SW 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.24 HOUR FORECAST FRONT DISSIPATES. WITHIN 24N126W TO 20N132W TO
17N140W TO 30N140W TO 30N124W TO 24N126W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 24N126W TO 20N132W TO 17N140W TO 
30N140W TO 30N124W TO 24N126W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW TO N SWELL.

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

CONVECTION VALID AT 0900 UTC TUE DEC 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH FROM 09N83W TO 08N104W. THE ITCZ FROM 08N104W
TO 08N117W TO 09N127W. SCATTERED MODERATE 180 NM SOUTH OF THE 
MONSOON TROUGH E OF 85W. 

$$
.FORECASTER TORRES. NATIONAL HURRICANE CENTER.