000
FZPN03 KNHC 182110
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
2230 UTC SAT DEC 18 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SYNOPSIS VALID 1800 UTC SAT DEC 18.
24 HOUR FORECAST VALID 1800 UTC SUN DEC 19.
48 HOUR FORECAST VALID 1800 UTC MON DEC 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT 30N132W TO 28N140W. NW OF FRONT NW WINDS TO 20 KT. 
SEAS 10 TO 11 FT IN NW SWELL. WITHIN 300 NM E OF FRONT SW WINDS 
20 TO 25 KT. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT 30N127W TO 26N140W. NW OF FRONT 
WINDS LESS THAN 20 KT. SEAS 11 TO 14 FT IN NW SWELL. N OF 27N 
WITHIN 240 NM E OF FRONT SW WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. 
ELSEWHERE NW OF LINE 30N122W TO 23N140W WINDS LESS THAN 20 KT. 
SEAS 8 TO 10 FT PRIMARILY IN NW SWELL. 
.48 HOUR FORECAST COLD FRONT 30N124W TO 27N132W THEN STATIONARY 
TO 24N140W. NW OF FRONT WINDS LESS THAN 20 KT. SEAS 11 TO 13 FT 
IN NW SWELL. N OF 27N WITHIN 240 NM E OF FRONT SW WINDS 20 TO 25 
KT. SEAS 9 TO 11 FT. ELSEWHERE NW OF LINE 30N117W TO 21N130W TO 
14N140W  WINDS LESS THAN 20 KT. SEAS 8 TO 10 FT PRIMARILY IN NW 
SWELL. 

.TROUGH 17N138W TO 08N140W. FROM 14N TO 18N WITHIN 240 NM E OF 
TROUGH NE WINDS 20 KT. SEAS TO 8 FT. S OF 08N W OF 134W SE WINDS 
20 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST TROUGH W OF AREA 15N140W TO 17N136W. FROM 14N 
TO 18N W OF 135W E WINDS 20 KT. SEAS TO 8 FT. S OF 07N W OF 135W 
E WINDS 20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST TROUGH W OF AREA. FROM 05N TO 12N W OF 130W NE 
TO E WINDS 20 KT. SEAS 8 FT.

.LOW PRES 10N112W 1010 MB. WITHIN 120 NM E SEMICIRCLE WINDS 20 
KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 10N114W 1010 MB. WITHIN 180 NM 
SE AND 120 NM NW QUADRANTS WINDS 20 KT. SEAS 8 FT. 
.48 HOUR FORECAST LOW PRES NEAR 10N117W 1008 MB. LITTLE CHANGE 
IN WINDS AND SEAS.  

.LOW PRES NEAR 07N87W 1010 MB. WITHIN 180 NM SE QUADRANT SW 
WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 07N87W 1009 MB. WITHIN 150 NM SE 
SEMICIRCLE SW WINDS 20 KT. SEAS 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.12 HOUR FORECAST N OF 14N BETWEEN 94W AND 96W INCLUDING THE 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS BUILDING TO 9 
FT. 
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AS OF 2100 UTC SAT DEC 18...

.INTERTROPICAL CONVERGENCE ZONE...AXIS 06N77W TO LOW PRES NEAR 
07N87W TO LOW PRES NEAR 10N112W TO 07N126W TO 12N140W. 
SCATTERED MODERATE ISOLATED STRONG N OF 02N E OF 83W. SCATTERED 
MODERATE WITHIN 120 NM OF 10N110W. SCATTERED MODERATE ISOLATED 
STRONG FROM 06N TO 11N W OF 138W.

$$
.FORECASTER COBB. TROPICAL PREDICTION CENTER.