000
AXPZ20 KNHC 100913
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC THU JUN 10 2010

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...
TROPICAL WAVE N OF 2N ALONG 83W MOVING W 10-15 KT. ACTIVE 
CONVECTION IS DESCRIBED BELOW UNDER ITCZ.

TROPICAL WAVE FROM 16N98W TO 6N99W MOVING W 15 KT. NO 
SIGNIFICANT CONVECTION ASSOCIATED WITH THE WAVE.

...ITCZ...
AXIS IS ALONG 8N84W 11N100W 8N120W 6N140W. SCATTERED MODERATE 
ISOLATED STRONG CONVECTION WITHIN 120 NM S OF AXIS FROM 84W-88W 
AND WITHIN 60 NM EITHER SIDE OF AXIS FROM 101W-106W.

...DISCUSSION...
UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED NEAR 21N135W MOVING 
W. A TROUGH EXTENDS FROM THE CYCLONIC CIRCULATION SW TO 16N140W. 
AN E-W ORIENTED UPPER LEVEL RIDGE IS N OF CYCLONIC CIRCULATION
WITH AXIS FROM THE N COAST OF BAJA CALIFORNIA NEAR 32N116W TO
29N125W TO 28N140W. MODERATE TO STRONG SUBSIDENCE WITH DRY 
STABLE AIR AT THE MIDDLE AND UPPER LEVELS IS NW OF THE CYCLONIC 
CIRCULATION.

AN UPPER LEVEL TROUGH EXTENDS FROM THE SW U.S. ACROSS NORTHERN
GULF OF CALIFORNIA THROUGH THE CENTRAL BAJA PENINSULA TO 25N123W.
DISSIPATING SHOWERS E OF THE TROUGH OVER NORTHERN MEXICO. AN
UPPER LEVEL ANTICYCLONIC CIRCULATION S OF THE TROUGH IS CENTERED 
JUST OFF THE COAST OF MEXICO NEAR PUERTO VALLARTA. A RIDGE 
EXTENDS FROM THE ANTICYCLONIC CIRCULATION TO 16N120W 10N135W. 
HIGH LEVEL MOISTURE IS BEING ADVECTED NE IN THE SLY FLOW BETWEEN 
THE RIDGE AND ABOVE MENTIONED CYCLONIC CIRCULATION. OTHERWISE 
MODERATE TO STRONG SUBSIDENCE IS WITHIN 360 NM EITHER SIDE OF 
THE RIDGE AXIS.

SURFACE RIDGE COVERS THE ARE N OF 15N W OF 115W. ELY TRADES TO 
20 KT ARE ALONG THE SOUTHERN PERIPHERY OF THE RIDGE FROM 12N-20N 
W OF 135W. A 1012 MB  LOW IS ANALYZED IN THE GULF OF PANAMA NEAR
8N79W. SCATTERED MODERATE TO STRONG CONVECTION IS N OF 6N E OF
80W. 

$$
DGS