000
AXPZ20 KNHC 250347
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI MAY 25 2007

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 
0300 UTC.

...ITCZ...
INTERTROPICAL CONVERGENCE ZONE AXIS...12N87W 7N109W 9N117W 
7N139W. SCATTERED MODERATE TO STRONG WITHIN 120 NM OF AXIS 
BETWEEN 90W AND 98W. SCATTERED MODERATE TO STRONG FROM 9N TO 14N 
BETWEEN 105W AND 110W. SCATTERED MODERATE WITHIN 60 NM BETWEEN 
123W AND 127W. 

...DISCUSSION...
UPPER LEVEL ANTICYCLONE CENTERED NEAR 11N89W IS SUPPORTING FLARE 
UP OF CONVECTION ALONG ITCZ NEAR A SURFACE TROUGH ALONG 90W. 
MORNING QUIKSCAT IMAGERY SHOWED MODERATE TO FRESH S TO SW CROSS 
EQUATORIAL FLOW S OF THIS FEATURE AND S OF THE ITCZ ACCOMPANIED 
BY MODERATE SLY SWELL.

AN UPPER LEVEL TROUGH EXTENDS SWD ALONG 120W OFF THE BAJA COAST. 
ANOTHER UPPER LEVEL ANTICYCLONE IS EVIDENT S OF THIS 
FEATURE...CENTERED NEAR 12N120W. DRY MID AND UPPER LEVEL AIR IS 
ADVECTING TO THE SE THEN E BETWEEN THE UPPER TROUGH AND RIDGE TO 
AN AREA S OF THE BAJA PENINSULA NEAR 110W. THIS AIR IS 
CONVERGING WITH WLY UPPER OUTFLOW FROM THE UPPER RIDGE NEAR 
11N89W. WEAK LOW TO MID LEVEL CYCLONIC CIRCULATION IS NOTED NEAR 
12N108W IN THE RELATIVELY LIGHT SHEAR ALOFT BETWEEN THE TWO 
ANTICYCLONIC SYSTEMS. A LARGE FIELD OF STRATOCUMULUS IS NOTED IN 
THE NLY FLOW W OF THIS TROUGH...GENERALLY N OF 15N.

SURFACE HIGH PRES 1032 MB CENTERED NEAR 32N142W. MODERATE TO 
FRESH TRADES TO THE S OF THE HIGH W OF 125W.

$$
CHRISTENSEN