000
AXPZ20 KNHC 022211
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC TUE JUN 02 2009

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

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2115 UTC.

...ITCZ...
AXIS ALONG 09N84W TO 13N107W TO 08N117W TO 05N132W TO 06N140W. 
SCATTERED MODERATE S OF AXIS BETWEEN 88W AND 90W. SCATTERED 
MODERATE FROM 12N TO 15N BETWEEN 97W AND 100W. SCATTERED 
MODERATE ISOLATED STRONG WITHIN 180 NM S OF AXIS BETWEEN 112W 
AND 115W. SCATTERED MODERATE 10N TO 12N BETWEEN 115W AND 120W.

...DISCUSSION...
N OF 20N...QUASI-STATIONARY DEEP LAYER CYCLONE IS 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