000
AXPZ20 KNHC 220915
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED AUG 22 2007

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.

...TROPICAL WAVE...
TROPICAL WAVE IS ALONG 112W FROM 3N TO 14N MOVING W NEAR 10 KT. 
ISOLATED SHOWERS ARE WITHIN 120 NM  OF AXIS.

...ITCZ...
ITCZ AXIS IS CENTERED ALONG 9N86W 13N96W 9N115W 12140W. 
SCATTERED MODERATE TO STRONG CONVECTION WITHIN 90 NM EITHER SIDE 
OF AXIS FROM 86W TO 91W.

...DISCUSSION...
A STRONG MID TO UPPER LEVEL ANTICYCLONIC CIRCULATION REMAINS 
JUST OFF THE THE NRN BAJA COAST NEAR 30N118W WITH RIDGE 
CONTROLLING THE UPPER PATTERN N OF 20N. THERE ARE NUMEROUS TSTMS 
OVER WRN MEXICO MOVING SW AROUND THE ANTICYCLONE TOWARD THE GULF 
OF CALIFORNIA. THIS ACTIVITY WILL LIKELY WEAKEN AS IT TRACKS 
TOWARDS THE STABLE OPEN WATERS. A SLOW MOVING UPPER LOW JUST W 
OF THE AREA NEAR 17N141W. MODERATE TO STRONG SUBSIDENCE WITH DRY 
STABLE AIR IS S OF 20N W OF 120W. MOISTURE IS MUCH MORE 
ABUNDANT IN THE TROPICAL E PORTION TO THE S OF HURRICANE DEAN. 

WEAK SURFACE TROUGH AS INDICATED BY QUIKSCAT DATA FROM 26N118W
22N128W. NO SIGNIFICANT WEATHER ASSOCIATED WITH THE TROUGH. THE 
TROUGH IS EMBEDDED IN A RIDGE THAT COVERS THE AREA N OF 15N W OF 
115W.

$$
DGS