000
AXPZ20 KNHC 050913
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC THU JUN 05 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 WAVE...
TROPICAL WAVE N OF 8N ALONG 85W MOVING W 10-15 KT. SCATTERED 
MODERATE TO STRONG CONVECTION ALONG...AND JUST OFFSHORE THE 
COAST OF COSTA RICA AND NICARAGUA.

...ITCZ...
INTERTROPICAL CONVERGENCE ZONE IS CENTERED ALONG 13N87W TO 
9N115W TO 02N140W. SCATTERED MODERATE TO STRONG CONVECTION 
WITHIN 120 NM EITHER SIDE OF AXIS FROM 90W-93W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 120 NM S OF AXIS 
FROM 95W-100W AND WITHIN 90 NM N OF AXIS FROM 101W-106W.

...DISCUSSION...
MID/UPPER LEVEL TROUGH EXTENDS FROM A CYCLONIC CIRCULATION W OF 
THE DISCUSSION AREA NEAR 17N148W TO 23N140W TO 27N123W. WEAKENING
RIDGE IS N OF THE TROUGH. MODERATE TO STRONG SUBSIDENCE COVERS
A LARGE AREA S OF 25N W OF 115W WHICH IS SUPPRESSING CONVECTIVE
ACTIVITY ALONG THE ITCZ. ANOTHER MID/UPPER LEVEL TROUGH EXTENDS
FROM A CYCLONIC CIRCULATION OVER THE INTER-MOUNTAIN WEST S ACROSS
NW MEXICO INTO THE GULF OF CALIFORNIA NEAR 27N111W. 
 
AN UPPER LEVEL RIDGE WITH AXIS FROM THE TEXAS GULF COAST ACROSS 
CENTRAL MEXICO TO AND ANTICYCLONIC CIRCULATION S OF THE BAJA 
PENINSULA NEAR 21N112W. UPPER DIFFLUENT FLOW CONTINUES TO 
SUPPORT CONVECTION ALONG AND NEAR THE ITCZ BETWEEN 89W-110W.  

BROAD SURFACE LOW PRES REMAINS OVER MUCH OF MEXICO. A 1O30 MB 
HIGH PRES ANALYZED JUST NW OF THE AREA NEAR 33N143W WITH A RIDGE 
EXTENDING SEWD THROUGH 24N130W TO 17N125W. HIGH PRES COVERS THE 
AREA N OF 15N W OF 122W.

$$
DGS