000
FZPN03 KNHC 192216
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SUN DEC 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SUN DEC 19.
24 HOUR FORECAST VALID 1800 UTC MON DEC 20.
48 HOUR FORECAST VALID 1800 UTC TUE DEC 21.

.WARNINGS.

...GALE WARNING...

.06 HOUR FORECAST N OF 14.5N BETWEEN 95.5W AND 96.5W...INCLUDING 
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS BUILDING TO 
8 FT.
.12 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 
13N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 
KT. SEAS 8 TO 9 FT. 
.18 HOUR FORECAST WITHIN 45 NM OF A LINE FROM 16N95W TO 15N95W 
TO 13N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LITTLE CHANGE. 
.36 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 
14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 
KT. SEAS 9 TO 10 FT. ELSEWHERE WITHIN 45 NM OF A LINE FROM 
16N95W TO 14.5N95W TO 12.5N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 9 FT.
.48 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 15N95W 
TO 13.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
25 TO 35 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 45 NM OF A LINE 
FROM 16N95W TO 13.5N96W TO 11.5N98W N TO NE WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.

.SYNOPSIS AND FORECAST.

.FROM 07N TO 15N W OF 130W...AND FROM 10N TO 15N BETWEEN 121W 
AND 130W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NW AND NE 
SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST FROM 10N TO 11N E OF 88W...INCLUDING THE 
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST FROM 10N TO 11N E OF 88W...INCLUDING THE GULF 
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.06 HOUR FORECAST COLD FRONT FROM 30N136W TO 28N140W. NW OF 
FRONT WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.12 HOUR FORECAST COLD FRONT FROM 30N134W TO 26N140W. NW OF 
FRONT WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL. N OF 29N 
E OF FRONT TO A LINE FROM 30N131W TO 29N133W SW WINDS 20 TO 25 
KT. SEAS TO 8 FT NEAR FRONT.
.18 HOUR FORECAST COLD FRONT FROM 30N133W TO 25N140W. NW OF 
FRONT NW WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN NW SWELL... 
HIGHEST NEAR 30N140W. N OF 28N E OF FRONT TO A LINE FROM 30N130W 
TO 28N132W SW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 30N132W TO 24N140W. LITTLE 
CHANGE.
.36 HOUR FORECAST COLD FRONT FROM 30N130W TO 23N140W. NW OF 
FRONT WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL... 
HIGHEST NEAR 30N140W. N OF 28N E OF FRONT TO 126W S TO SW WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST COLD FRONT FROM 30N127W TO 24N132W THEN 
DISSIPATING FRONT TO 21N140W. W OF FRONT WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN NW SWELL.

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

CONVECTION VALID AT 2100 UTC SUN DEC 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS FROM SOUTHERN COSTA RICA NEAR 09N83W 
TO 07N90W TO 08N100W. THE ITCZ BEGINS NEAR 09N116W TO 08N132W TO 
07N140W. SCATTERED MODERATE CONVECTION CAN BE FOUND 13N-15N 
BETWEEN 105W-109W...AND FROM 08N-11N BETWEEN 123W-126W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.