000
AXPZ20 KNHC 040925
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED APR 4 2007

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...AXIS 8N83W 6N100W 7N127W 6N140W. SCATTERED MODERATE 
CONVECTION WITHIN 90 NM S OF AXIS E OF 92W.

...DISCUSSION...
A N-S UPPER RIDGE EXTENDS ALONG 122W. A DEEP TROUGH EXTENDS FROM 
29N105W TO 10N109W. ANOTHER TROUGH APPROACHING NW PORTION OF AREA 
ALONG 140W...WITH MOISTURE PLUME EVIDENT AHEAD OF TROUGH AXIS...N OF 
20N BETWEEN 126W AND 137W. E-W RIDGE EXTENDS E OF 110W TO CENTRAL 
AMERICA. 

AT THE SURFACE A WEAK STATIONARY FRONT IS ANALYZED IN EXTREME NW PART
OF DISCUSSION AREA. STATIONARY 1021 MB HIGH NEAR 32N127W WILL PREVENT
FURTHER WESTWARD MOVEMENT...WITH FRONT EXPECTED TO DISSIPATE NEXT 24 
HOURS. TUES EVENING QUIKSCAT SHOWED DISTINCT LACK OF SIGNIFICANT WIND
FEATURES ACROSS THE BASIN. WINDS ARE VERY LIGHT...TOPPING OUT AT 15
TO 20 KT IN THE TRADE WIND BELT BETWEEN 5N AND 20N. ELSEWHERE WINDS 
ARE GENERALLY 5-10 KT...WITH LITTLE CHANGE EXPECTED NEXT 24-48 HRS. 

$$
MUNDELL