000
AXPZ20 KNHC 140908
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN SEP 14 2008

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 WAVES...
WEAK TROPICAL WAVE FROM 6N-13N ALONG 98W MOVING W 10 KT. ONLY 
ISOLATED WEAK CONVECTION IS WITHIN 30 NM W OF THE WAVE. 

...ITCZ...
ITCZ AXIS IS CENTERED ALONG 6N77W 9N100W 9N115W 8N140W. 
SCATTERED MODERATE TO STRONG WITHIN 200 NM S OF AXIS E OF 79W 
AND WITHIN 90 NM EITHER SID OF AXIS FROM 92W TO 96W

...DISCUSSION...
BROAD E TO W ORIENTED UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
CENTERED NEAR 25N130W. AN UPPER LEVEL CYCLONIC CIRCULATION AND 
ASSOCIATED TROUGH TO THE N OF THE AREA HAS FLATTENED THE RIDGE.
MID/UPPER TROUGH EXTENDS FROM SOUTHERN ARIZONA ACROSS CENTRAL 
BAJA CLAIFORNIA TO 22N124W. A LARGE AREA OF SUBSIDENCE WITH DRY 
STABLE CONDITIONS COVERS THE AREA N OF THE ITCZ W OF 110W...WITH 
ONLY A FEW SHOWERS ALONG THE ITCZ. ANTICYCLONIC CIRCULATION OVER 
MEXICO NEAR 24N102W. RIDGE EXTENDS SW FROM THIS ANTICYCLONE TO 
17N120W. UPPER LEVEL DIFFLUENT FLOW IS ENHANCING CONVECTIVE 
ACTIVITY ACROSS CENTRAL MEXICO.

SURFACE HIGH PRES COVERS THE AREA N OF 21N W OF 125W. 
BROKEN/OVERCAST STRATOCUMULUS CLOUDS COVERS THE AREA N OF 18N W 
OF 115W.

$$
DGS