000
AXPZ20 KNHC 212100
TWDEP 

TROPICAL WEATHER DISCUSSION...RETRANSMITTED
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC FRI APR 21 2006

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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ...
ITCZ AXIS IS CENTERED ALONG 6N78W 7N105W 4N140W. SCATTERED 
MODERATE CONVECTION 90M WIDE 130W TO 135W.

...DISCUSSION...
MID/UPPER TROUGHEXTENDING FROM CYCLONIC CIRCULATION NEAR 32N124W 
TO 20N130W. A 90-100 KT JET STREAM ALONG THE BASE OF THE TROUGH 
FROM 18N140W TO 17N129W WHERE IT SPLITS THE SOUTHERN PORTION 
CONTINUES TO 13N121W WHILE THE NORTHERN PART EXTENDS NE TO THE 
NORTHERN BAJA PENINSULA. TROPICAL MOISTURE S OF THE JET AXIS IS 
BEING ADVECTED NE TOWARD BAJA CALIFORNIA. E OF THE TROUGH IS A 
MID/UPPER LEVEL RIDGE WITH AXIS FROM THE NEW MEXICO/ARIZONA 
BORDER ACROSS WESTERN MEXICO TO 20N. 

UPPER LEVEL TROUGH IN THE EASTERN PACIFIC EXTENDS FROM 16N112W 
TO 30N104W. MODERATE TO STRONG SUBSIDENCE AND DRY STABLE 
CONDITIONS IS S OF 20N E OF 105W...WITH VERY MINIMAL SHOWER 
ACTIVITY NOTED IN THE AREA. BROAD UPPER LEVEL RIDGE WITH AXIS 
FROM EQ AT 85W NE ACROSS CENTRAL INTO THE SW CARIBBEAN.

$$
DGS