000
AXPZ20 KNHC 130400
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE NOV 13 2007

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...
ITCZ AXIS ALONG 10N85W  6N94W  8N112W  8N120W  11N124W  8N135W  
8N140W.  SCATTERED MODERATE CONVECTION WITHIN 120 NM S OF AXIS
E OF 92W AND WITHIN 30 NM S OF AXIS W OF 126W.

...DISCUSSION...
MID/UPPER LEVEL RIDGING EXTENDS W FROM SWRN CARIBBEAN ALONG 17N 
TO SRN HALF OF MEXICO THEN TURNS NW ALONG 100W TO TEXAS.  UPPER 
LEVEL ANTICYCLONE MOVING NE 15 KT...FORCED BY LARGE AMPLITUDE 
LONGWAVE TROUGH EXTENDING FROM 32N113W TO CYCLONIC VORTEX AT 
29N116W THEN CONTINUE TO 16N140W.  ASSOCIATED MODERATE TO STRONG 
SUBSIDENCE COVERS AREA WITHIN 240 NM OF TROUGH AXIS S OF VORTEX. 
UPPER LEVEL RIDGE COMPLETES PICTURE UPSTREAM FROM LONGWAVE 
TROUGH BRINGING SUBTROPICAL MOISTURE N OF 23N FROM 123-137W.  

AT THE SURFACE...
DIFFUSING FRONT MOVING SE 20 KT EXTENDS FROM 29N115W 24N117W 
22N123W.  SURGE OF NW-N WIND W OF FRONT BRING 20 KT ALONG BAJA 
CALIFORNIA COAST.

STATIONARY 1023 MB HIGH PRES AT 31N132W WITH RIDGE EXTENDING SE 
TO 18N112W.  NE TRADES 10N-20N W OF 130W TO REMAIN THROUGH 
FORECAST PERIOD.  

$$
WALLY BARNES