000
FZPN03 KNHC 200913
HSFEP2

HIGH SEAS FORECAST 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC MON DEC 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MON DEC 20.
24 HOUR FORECAST VALID 0600 UTC TUE DEC 21.
48 HOUR FORECAST VALID 0600 UTC WED DEC 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT 30N125W TO 25N140W. NW OF FRONT NW WINDS 20 KT. SEAS 
10 TO 14 FT PRIMARILY IN NW SWELL. ELSEWHERE W OF LINE 30N118W 
TO 15N140W WINDS LESS THAN 20 KT. SEAS 8 TO 11 FT PRIMARILY IN 
NW SWELL.
.24 HOUR FORECAST FRONTAL TROUGH 30N121W TO 24N130W TO 16N140W
AND COLD FRONT 30N135W TO 28N140W. NW OF COLD FRONT NW WINDS 20 
TO 25 KT. SEAS 12 FT. N OF 28N WITHIN 240 NM E FRONTAL TROUGH SW 
WINDS 20 KT. SEAS 13 FT. ELSEWHERE W OF LINE 30N115W TO 10N140W  
WINDS LESS THAN 20 KT. SEAS 8 TO 12 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST COLD FRONT MERGE 30N121W TO 21N129W TO 
17N140W. N OF 26N WITHIN 660 NM W OF FRONT NW WINDS 20 KT. SEAS 
12 TO 15 FT IN NW SWELL. N OF 28N WITHIN 240 NM E FRONT SW WINDS 
20 KT. SEAS 10 FT. ELSEWHERE W OF LINE 30N115W TO 10N120W  WINDS 
LESS THAN 20 KT. SEAS 8 TO 11 FT PRIMARILY IN NW SWELL. 

.LOW PRES AT 07N85W 1009 MB. WITHIN 180 NM SE QUADRANT SW WINDS 
20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 07N86W 1008 MB. WITHIN 180 NM SE 
SEMICIRCLE SW WINDS 20 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW PRES NEAR 07N90W 1010 MB. WITHIN 180 NM OF 
LOW PRES WINDS 20 KT. SEAS TO 8 FT.

.LOW PRES AT 08N118W 1010 MB. WITHIN 120 NM SE QUADRANT S TO SW 
WINDS 20 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW PRES NEAR 12N119W 1008 MB. WITHIN 120 NM 
SE QUADRANT SW WINDS 20 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST TROUGH 09N122W TO 18N119W. CONDITIONS MERGE.

.GULF OF TEHUANTEPEC N WINDS 20 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST N WINDS 20 KT. SEAS LESS THAN 8 FT.

.GULF OF PAPAGAYO FROM 09N TO 11N E OF 89W NE TO E WINDS 20 KT.  
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE. 

.24 HOUR FORECAST S OF 05N W OF 120W E TO SE WINDS 20 KT. SEAS 
TO 8 FT IN SE SWELL.
.48 HOUR FORECAST S OF 08N W OF 120W E TO SE WINDS 20 KT. SEAS 
TO 9 FT IN SE SWELL.

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

CONVECTION VALID AS OF 0900 UTC MON DEC 20...

.LOW PRES 07N85W...SCATTERED MODERATE WITHIN 240 NM E OF CENTER. 

.LOW PRES 08N118W...SCATTERED MODERATE WITHIN 240 NM OF CENTER. 

.SCATTERED MODERATE TO STRONG WITHIN 30 NM OF 16N138W.

.INTERTROPICAL CONVERGENCE ZONE AXIS 09N83W TO LOW PRES AT 
07N85W TO 04N90W TO LOW PRES AT 08N118W TO 05N140W. NO 
SIGNIFICANT CONVECTION.
 
$$
.FORECASTER NELSON. TROPICAL PREDICTION CENTER.