000
AXPZ20 KNHC 242108
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU MAR 24 2011

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE AXIS IS ANALYZED FROM 06N87W 
TO 03N114W TO 06N128W TO 03N140W WITH NO SIGNIFICANT CONVECTION 
NOTED.

...DISCUSSION...

HIGH PRESSURE 1032 MB CENTERED NEAR 33N158W HAS RIDGE EXTENDING 
INTO THE FORECAST AREA NEAR 28N140W TO 28N122W. THE PRESSURE 
GRADIENT BETWEEN THE RIDGE AND TROUGHING OVER MEXICO IS 
SUPPORTING FRESH 20 KT NW WINDS OFF THE W COAST OF BAJA 
CALIFORNIA AS DEPICTED IN THE LATEST ASCAT PASS. THE PRESSURE 
GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE NEAR THE ITCZ IS 
MAINTAINING FRESH TO STRONG TRADES FROM 06N TO 20N W OF 125W AS 
DEPICTED IN THE LATEST ASCAT AND WINDSAT PASSES. THE RIDGE WILL 
MAINTAIN OVER THE N PART OF THE AREA THROUGH THE FORECAST PERIOD 
AND WILL MAINTAIN THE WINDS OFF THE COAST OF BAJA CALIFORNIA AS 
WELL AS THE AREA OF TRADEWINDS.

THE REGIONAL WATERS ARE PRIMARILY DOMINATED BY LONG PERIOD NW 
SWELL...MERGING WITH CROSS EQUATORIAL SW SWELL MAINLY S OF 10N. 
ANOTHER SET OF LONG PERIOD NW SWELL HAS MOVED INTO THE N PART OF 
THE AREA...WITH SIGNIFICANT WAVE HEIGHTS AS HIGH AS 12 FT N OF 
29N BETWEEN 120W AND 130W. THE SEAS WILL BUILD TO 17 FT IN THIS 
AREA TONIGHT. THE SWELL WILL PROPAGATE S AND E ACROSS THE AREA W 
OF 110W THROUGH THE FORECAST PERIOD. 

$$
AL