000
FZPN03 KNHC 181539
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SAT DEC 18.
24 HOUR FORECAST VALID 1200 UTC SUN DEC 19.
48 HOUR FORECAST VALID 1200 UTC MON DEC 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT 30N135W TO 28N140W. NW OF FRONT NW WINDS TO 20 KT. 
SEAS 9 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 30N132W TO 27N140W. N OF 27N WITHIN 
300 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 12 FT PRIMARILY IN NW SWELL. 
.48 HOUR FORECAST COLD FRONT 30N123W TO 27N132W STATIONARY TO 
26N140W. NW OF LINE 30N118W TO 15N140W WINDS LESS THAN 20 KT. 
SEAS 8 TO 14 FT PRIMARILY IN NW SWELL. 

.TROUGH 14N134W TO 10N130W. WITHIN 240 NM W OF TROUGH NE WINDS 
20 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST TROUGH 15N140W TO 17N136W. WITHIN 120 NM W OF 
TROUGH NE WINDS TO 20 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST TROUGH W OF AREA. CONDITIONS MERGE.

.S OF 07N W OF 134W SE WINDS 20 KT. SEAS TO 9 FT.
.24 HOUR FORECAST S OF 07N W OF 135W E WINDS 20 KT. SEAS TO 8 
FT.
.48 HOUR FORECAST FROM 05N TO 10N W OF 130W NE TO E WINDS 20 KT. 
SEAS TO 8 FT.

.LOW PRES 10N110W 1010 MB. WITHIN 90 NM E SEMICIRCLE WINDS 20 
KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 10N113W 1009 MB. WITHIN 180 NM 
SE AND 120 NM NW QUADRANTS WINDS 20 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST LOW PRES NEAR 10N116W 1008 MB. LITTLE CHANGE 
IN WINDS AND SEAS.  

.LOW PRES NEAR 07N88W 1011 MB. WITHIN 180 NM SE QUADRANT SW 
WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 07N87W 1009 MB. WITHIN 120 NM SE 
SEMICIRCLE SW WINDS 20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.18 HOUR FORECAST N OF 14N BETWEEN 94W AND 96W INCLUDING THE 
GULF OF TEHUANTEPEC...N WINDS 20 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.36 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 1500 UTC SAT DEC 18...

.INTERTROPICAL CONVERGENCE ZONE...AXIS 06N77W TO LOW PRES NEAR 
07N88W TO LOW PRES NEAR 10N110W TO 07N125W TO 12N136W TO 
10N140W. SCATTERED MODERATE ISOLATED STRONG N OF 01N E OF 82W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 120 NM OF 10N110W. 
SCATTERED MODERATE ISOLATED STRONG FROM 06N TO 11N W OF 137W.

$$
.FORECASTER AL. TROPICAL PREDICTION CENTER.