000
AXPZ20 KNHC 090405
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED NOV 08 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...SPECIAL FEATURE...
TROPICAL DEPRESSION NINETEEN E NEAR 14.6N 105.1W 1005 MB AT 0300 
UTC NOV 09 MOVING NW OR 315 DEG AT 6 KT.  MAXIMUM SUSTAINED 
WIND 30 GUSTS 40 KT.  SEE LATEST NHC FORECAST/ADVISORY UNDER 
AWIPS/WMO HEADERS MIATCMEP4/WTPZ24 KNHC FOR MORE DETAILS. 
NUMEROUS STRONG CONVECTION WITHIN 120 NM OF DEPRESSION CENTER.

...TROPICAL WAVES...
NONE.

...ITCZ...
ITCZ AXIS ALONG 9N83W  7N92W  13N104W  6N133W  6N140W.
ISOLATED MODERATE WITHIN 90 NM OF AXIS FROM 90W TO 96W AND FROM 
109W TO 117W. 

...DISCUSSION...
WEIRD LAID BACK UPPER LEVEL TROUGH RUNS E-W ALONG 26N FROM 
CYCLONIC VORTEX AT 29N110W TO 25N132W.  VERY DRY AIR MASS N OF 
22N PREVENTS ANY CONVECTION DEVELOPMENT.  SECOND CYCLONIC VORTEX 
AT 16N143W COMBINES WITH BROAD MID/UPPER LEVEL RIDGE TO ADVECT 
TROPICAL MOISTURE NWD W OF 130N S OF 22N.  LARGE ANTICYCLONIC 
CIRCULATION CENTERED AT 11N98W DOMINATES FLOW S OF 22N E OF 130W 
ALLOWING TROPICAL MOISTURE FROM CARIBBEAN BASIN TO CROSS INTO E 
PAC AT ITCZ LEVEL.  OTHERWISE AREA REMAINS PRETTY DRY BUT 
LACKING UPLIFTING MECHANISM TO ENHANCE ITCZ CONVECTION.  ONLY 
FEATURES NOTED ARE TROPICAL DEPRESSION DISCUSSED ABOVE AND WEAK 
LOW PRES SYSTEM NEAR 10N113W BEING MONITORED FOR 
DEVELOPMENT...BUT ITS CLOSENESS TO THE DEPRESSION CURTAILS ITS 
POSSIBILITIES. 

AT THE SURFACE...HIGH PRES CENTER 1028 MB WELL N OF AREA HAS 
RIDGE EXTEND 23N118W KEEPING MODERATE TRADES N OF 10N W OF 120W. 

$$
WALLY BARNES