000
AXPZ20 KNHC 120335
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT MAY 12 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...
INTERTROPICAL CONVERGENCE ZONE AXIS 7N78W 10N87W 8N101W 10N115W 
10N121W 7N130W 6N140W. SCATTERED MODERATE CONVECTION WITHIN 120 NM 
OF AXIS BETWEEN 95W AND 123W. SCATTERED MODERATE CONVECTION WITHIN 
90 NM OF 6N138W.

...DISCUSSION...
LONG WAVE MID LEVEL TROUGH N OF THE AREA EXTENDS SSW THROUGH 32N135W 
TO 25N140W. AN UPPER LEVEL TROUGH EXTENDS FROM 30N115W TO 13N125W. 
EXTENSIVE HIGH CLOUDS FROM CONVECTION WITHIN THE ITCZ IS SURGING 
NORTH ABOUT 300 NM EAST OF THE TROUGH AXIS...SPREADING INTO CENTRAL 
MEXICO AND SOUTHERN BAJA CALIFORNIA.

REMAINDER OF THE AREA IS COVERED BY WEAK ANTICYCLONIC FLOW ALOFT. 
ITCZ CONVECTIVE CLOUDINESS EXTENDS TO 13N FROM 100W WEST TO THE 
ABOVE MENTIONED UPPER TROUGH.

A WEAK SURFACE RIDGE EXTENDS SE FROM 32N136W TO 17N115W. A SFC TROUGH
IS ANALYZED WITHIN THE ITCZ NEAR 119W. LITTLE CHANGE TO THE CURRENT 
SYNOPTIC PATTERN EXPECTED NEXT 2-3 DAYS.

$$
MUNDELL