000
AXPZ20 KNHC 080930
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SAT MAR 08 2008

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

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

...ITCZ...
ITCZ AXIS ALONG 1N80W 7N110W 5N125W 7N140W. SCATTERED MODERATE 
CONVECTION WITHIN 60 NM EITHER SIDE OF AXIS FROM 133W TO 137W.

...DISCUSSION...
MID/UPPER LEVEL RIDGE BUILDING OVER THE W PORTION OF THE 
DISCUSSION AREA W OF AROUND 120W...WITH RIDGE AXIS ALONG 130W. 
MID/UPPER LEVEL TROUGH EXTENDS FROM CYCLONIC CIRCULATION OVER NE 
TEXAS ACROSS NORTHERN MEXICO THROUGH CENTRAL BAJA CALIFORNIA TO 
ANOTHER CYCLONIC CIRCULATION NEAR 25N115W. EXCEPT FOR MID TO 
UPPER LEVEL MOISTURE NEAR THE CYCLONIC CIRCULATION NEAR THE 
COAST OF BAJA MOSTLY MODERATE TO STRONG SUBSIDENCE N OF 20N 
BETWEEN 105W-120W. LARGE UPPER LEVEL ANTICYCLONIC CIRCULATION 
REMAINS OVER THE WESTERN CARIBBEAN WITH RIDGE EXTENDING W OF THE 
CIRCULATION ACROSS HONDURAS AND NICARAGUA INTO THE PACIFIC TO 
8N102W. DIVERGENT FLOW ALOFT ON THE SW SIDE OF THE UPPER 
ANTICYCLONE IS INTERACTING WITH LOW LEVEL CONVERGENCE ALONG THE 
ITCZ TO ENHANCE AN AREA OF SCATTERED CONVECTION FROM THE EQUATOR 
TO 5N BETWEEN 87W AND 94W.

SURFACE HIGH PRES JUST N OF THE AREA NEAR 33N129W WITH RIDGE SE
TO 18N11W. A COUPLE OF SURFACE TROUGHS ARE ANALYZED ALONG THE 
ITCZ
ONE ALONG 12N112W TO 5N114W. SCATTERED MODERATE CONVECTION WITHIN
150 NM W OF THROUGH FROM 10N-12N. ANOTHER TROUGH FROM 11N137W TO
8N140W.

$$
DGS