000
AXPZ20 KNHC 180331
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE JAN 18 2011

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE AXIS IS CENTERED ALONG 05N77W 
TO 05N103W TO 08N112W TO 07N140W. SCATTERED MODERATE CONVECTION 
WITHIN 90 NM N OF AXIS BETWEEN 115W AND 130W.

...DISCUSSION...

HIGH PRESSURE RIDGE EXTENDS ACROSS NORTHERN PORTION OF THE AREA 
ANCHORED BY A 1030 MB HIGH CENTERED NEAR 39N133W. THE PRESSURE 
GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE ASSOCIATED WITH 
THE ITCZ IS MAINTAINING FRESH TRADE WINDS W OF 135W BETWEEN 12N 
AND 18N. THE TRADES ARE ALSO ENHANCING LOW LEVEL CONVERGENCE AND 
SCATTERED MODERATE CONVECTION BETWEEN 110W AND 130W. HIGH PRES 
WILL REMAIN N OF THE AREA THROUGH 48 HOURS AND MAINTAIN AN AREA 
OF FRESH NORTHERLY WINDS OFF THE SOUTHERN CALIFORNIA AND BAJA 
CALIFORNIA COASTS...N OF 22N BETWEEN 120W AND 135W. LONG PERIOD 
NW SWELL IN THE FAR NW PART OF THE AREA WILL PROPAGATE SE ACROSS 
THE AREA W OF 120W AND N OF 08N THROUGH 48 HOURS. 

$$
MUNDELL