000
AXPZ20 KNHC 071509
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC WED MAY 07 2008

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

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ...
INTERTROPICAL CONVERGENCE ZONE ALONG 06N78W TO 03N95W TO 08N115W 
TO 04N140W. SCATTERED MODERATE TO STRONG CONVECTIONWITHIN 120 NM 
EITHER SIDE OF AXIS FROM 106W-116W AND WITHIN 150 NM S OF AXIS 
FROM 116W-121W AND WITHIN 90 NM N OF AXIS FROM 123W-126W.

...DISCUSSION...
MID/UPPER LEVEL CUTOFF CYCLONIC CIRCULATION IS CENTERED NEAR 
20N131W WITH TROUGH S TO 8N125W. UPPER LEVEL ANTICYCLONIC 
CIRCULATION E OF THE TROUGH NEAR 13N105W WITH RIDGE NW TO THE 
BAJA PENINSULA AND ANOTHER RIDGE NE ACROSS CENTRAL MEXICO INTO 
THE GULF OF MEXICO. SW FLOW BETWEEN THE TWO CIRCULATIONS IS 
ADVECTING TROPICAL MOISTURE TO SOUTHERN BAJA CALIFORNIA AND 
WESTERN MEXICO. UPPER LEVEL DIFFLUENT FLOW IS ENHANCING 
CONVECTIVE ACTIVITY ALONG THE ITCZ BETWEEN 110W-120W.
VIGOROUS UPPER LEVEL CYCLONIC CIRCULATION OVER EASTERN NEW 
MEXICO WITH TROUGH EXTENDING SWD INTO NORTHERN MEXICO. A
90-100 KT JET OVER NORTHERN MEXICO FROM 26N108W INTO CENTRAL 
TEXAS. MODERATE TO STRONG SUBSIDENCE IS N OF THE JET AXIS
WITH MOSTLY CLEAR SKIES IN THE ARE.

SURFACE RIDGE WITH AXIS FROM 32N137W TO 12N112W. BROKEN/OVERCAST
STRATOCUMULUS CLOUDS ARE WITHIN THE RIDGE N OF 15N.

$$
DGS