000
AXPZ20 KNHC 261521
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC WED APR 26 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 9N84W 9N110W 5N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 150 NM EITHER SIDE OF 
OF AXIS BETWEEN 111W AND 115W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION WITHIN 75 NM N OF AXIS BETWEEN 133W AND 136W.

...DISCUSSION...
MID/UPPER LOW IS CENTERED OFF THE COAST OF SOUTHERN CALIFORNIA 
NEAR 32N120W MOVING SSE 20 KT. A TROUGH AXIS EXTENDS SW OF THE 
LOW TO 10N140W. UPPER LEVEL CONFLUENT FLOW PATTERN IS PRODUCING 
STRONG SUBSIDENCE FROM 15N-23 W OF 128W. SUBTROPICAL JET IS ON 
THE SE SIDE OF THE UPPER TROUGH AND EXTENDS FROM 15N130W TO 
25N120W THEN OVER NORTHERN MEXICO TO THE TEXAS BIG BEND. UPPER 
LEVEL WIND SPEEDS ARE NEAR 100 KT IN THE JET CORE AND BROKEN 
CIRRUS CLOUDS ARE SPREADING INLAND OVER MUCH OF MEXICO. AN UPPER 
LEVEL ANTICYCLONE IS CENTERED NEAR 12N108W AND IS NEARLY 
STATIONARY. STRONG DIFFLUENCE ON THE SW SIDE OF THE ANTICYCLONE 
IS SUPPORTING A LARGE ITCZ CONVECTIVE CLUSTER FROM 5N-10N 
BETWEEN 112W-115W.

A SHARP MID/UPPER LEVEL TROUGH EXTENDS FROM THE YUCATAN 
PENINSULA S INTO THE PACIFIC NEAR 7N93W. CONFLUENT FLOW W OF THE 
TROUGH AXIS IS PRODUCING MODERATE/STRONG SUBSIDENCE FROM 6N-20N 
BETWEEN 90W-105W WHILE DEEP TROPICAL MOISTURE IS BEING ADVECTED 
NEWD ACROSS THE REST OF CENTRAL AMERICA AHEAD OF THE TROUGH.

HIGH PRES RIDGE COVERS THE PACIFIC N OF 10N W OF 110W...WITH 
BROKEN TO OVERCAST STRATOCUMULUS CLOUDS N OF 15N W OF 115W.

$$
DGS