000
AXPZ20 KNHC 030336
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED JUN 03 2009

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

...ITCZ...
AXIS ALONG 08N82W TO 08N92W TO 12N106W TO 05N132W TO 06N140W. 
SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 180 NM S OF 
AXIS BETWEEN 90W AND 94W. SCATTERED MODERATE CONVECTION IS 
WITHIN 60 NM EITHER SIDE OF AXIS BETWEEN 110W AND 112W...AND 
BETWEEN 115W AND 117W...AND BETWEEN 120W AND 125W.

...DISCUSSION...
N OF 20N...QUASI-STATIONARY DEEP LAYER CYCLONE REMAINS CENTERED 
NEAR 37W128. AN ASSOCIATED SURFACE FRONT HAS DISSIPATED N OF 20N 
W OF 130W...WEST OF A STATIONARY 1018 MB SURFACE HIGH PRES CELL 
CENTERED NEAR 28N125W. A RELATIVELY TIGHT GRADIENT BETWEEN THE 
SURFACE HIGH AND THE BAJA COAST IS RESPONSIBLE FOR PERIODIC 20 
KT FLOW ALONG THE CENTRAL BAJA COAST. OVER THE NORTHERN GULF OF 
CALIFORNIA...DRAINAGE FLOW OVER THE NORTHERN BAJA PENINSULA 
ALONG WITH WESTERLY GRADIENT FLOW IS ENHANCING MORNING 
WINDS...UP TO 20 KT...BUT DIMINISHING THROUGH THE EARLY 
AFTERNOON.

S OF 20N...UPPER LOW REMAINS CENTERED NEAR 15N135W. UPPER 
DIVERGENCE ON THE SE SIDE OF THE UPPER LOW IS HELPING 
DEVELOPMENT OF MODEST CONVECTION ALONG A SURFACE TROUGH NEAR 
120W. 20 KT TRADE WIND FLOW ON THE SOUTH SIDE OF THE 1018 MB 
SURFACE HIGH NEAR 28N125W. FURTHER EAST...SCATTEROMETER AND SHIP 
OBSERVATIONS SHOW 20 KT GAP FLOW THROUGH THE GULF OF 
PAPAGAYO...RELATED TO ENHANCED TRADES OVER THE CARIBBEAN.

LITTLE CHANGE IS EXPECTED OVER THE NEXT COUPLE OF DAYS.

$$
CHRISTENSEN