000
AXPZ20 KNHC 012135
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC FRI APR 1 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...
AXIS IS ALONG 05N80W TO 06N90W TO 03N99W TO 05N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 30 NM OF AXIS FROM 
90W TO 95W AND BETWEEN 111W AND 132W.

...DISCUSSION...
UPPER LEVEL CUT-OFF CYCLONIC CIRCULATION IN NW PORTION OF THE 
DISCUSSION AREA NEAR 27N135W HAS LESS MULTI-LAYER CLOUDS ROTATING
AROUND IT. THE LOW LIFTS NE SAT AS ANOTHER MID-LAT TROUGH DIVES S
AND EVENTUALLY FORMS ANOTHER CUT-OFF LOW NEAR 25N129W SUN NIGHT.
WEAK TROUGHING AND MINIMAL CLOUDINESS IS EVIDENT NEAR THE SURFACE
IN NE TRADE WIND FLOW. ITCZ CONVECTION HAS FLARED UP IN THE PAST 
12 HOURS BETWEEN 115W AND 130W...THE RESULT OF DIVERGENCE ALOFT.

USUAL HIGH PRES RIDGE OVER NW PORTION OF AREA IS NOT PRESENT AT 
THIS TIME...AS A RESULT TRADE WINDS ARE LESS THAN 20 KT OVER THE 
ENTIRE DISCUSSION AREA. HIGH PRES IS EXPECTED TO BUILD NW OF THE 
AREA SAT...ALLOWING A SLIGHT INCREASE IN FRESH TRADE WINDS. WEAK
MONSOONAL ITCZ IS TRYING TO DEVELOP W OF 100W WITH SPOTTY TSTMS.
PATTERN DOES NOT CHANGE SIGNIFICANTLY OVER THE NEXT 2-3 DAYS.

$$
MUNDELL