000
AXPZ20 KNHC 071507
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT JUN 07 2008

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

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...TROPICAL WAVES...
TROPICAL WAVE OVER COSTA RICA AND NICARAGUA N OF 6N ALONG 84W 
MOVING W 10-15 KT. SCATTERED SHOWERS ASSOCIATED WITH THE WAVE 
OVER NICARAGUA.

...ITCZ...
ITCZ AXIS IS CENTERED ALONG 5N77W 7N90W 10N105W 8N120W 5N140W. 
NUMEROUS MODERATE TO STRONG CONVECTION FROM 5N-8N E OF 80W. 
SCATTERED STRONG CONVECTION WITHIN 90 NM S OF AXIS FROM 97W-103W 
AND WITHIN 60 NM EITHER SIDE OF AXIS FROM 109W-113W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 120 NM S OF AXIS FROM 
120W-125W.

...DISCUSSION...
UPPER LEVEL CYCLONIC CIRCULATION CENTERED NEAR 23N132W WITH 
TROUGH FROM THE CYCLONE SE TO 5N120W. RIDGE IS SW OF THE 
CYCLONIC CIRCULATION AND TROUGH S OF 20N ALONG 140W. MODERATE
TO STRONG SUBSIDENCE WITH DRY AIR AT THE MID/UPPER LEVELS OF THE 
ATMOSPHERE IS N OF THE ITCZ W OF 110W...HOWEVER SOME HIGH LEVEL
MOISTURE IS RIDING OVER THE RIDGE AXIS W OF 135W. AN UPPER HIGH 
IS LOCATED OVER THE SOUTHERN TIP OF THE BAJA PENINSULA NEAR 
23N110W. 

DEEP TROPICAL MOISTURE REMAINS ACROSS THE SOUTHERN HALF OF 
MEXICO THROUGH CENTRAL AMERICA AND IN THE PACIFIC E OF 105W... 
WITH SCATTERED TO NUMEROUS MODERATE/STRONG TSTMS. A 1007 MB 
SURFACE LOW IS LOCATED ABOUT 80 NM E OF ACAPULCO WITH A TROUGH 
EXTENDING FROM THE LOW TO 12N102W. SCATTERED MODERATE TO STRONG 
CONVECTION IS N OF 12N TO THE COAST OF MEXICO E OF THE TROUGH 
TO 92W. THE UPPER FLOW IS RATHER CHAOTIC BUT IN GENERAL NE/E 
FLOW DOMINATES THE TROPICAL PACIFIC. 

SURFACE RIDGE WITH AXIS FROM 32N138W TO 18N120W. BROKEN/OVERCAST
STRATOCUMULUS CLOUDS COVER THE AREA N OF 13N W OF 110W.

$$
DGS