000
AXPZ20 KNHC 011524
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE JUN 01 2010

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.

...ITCZ...
AXIS IS ALONG 06N82W TO 09N91W TO 10N106W TO 05N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 120 NM EITHER SIDE OF 
AXIS FROM 108W TO 111W AND WITHIN 120 NM N OF AXIS FROM 80W TO 86W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 150 NM S OF 
AXIS BETWEEN 100W AND 106W. SCATTERED MODERATE TO STRONG CONVECTION 
WITHIN 220 NM N AND 120 NM S OF AXIS BETWEEN 110W AND 116W. 

...DISCUSSION...
AN UPPER LEVEL TROUGH DOMINATES THE NORTHERN PORTION OF THE 
DISCUSSION AREA EXTENDING FROM NORTHERN BAJA CALIFORNIA COAST NEAR 
32N116W TO 26N125W TO 23N140W. 

IN THE DEEP TROPICS AN UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
CENTERED NEAR 13N115W. ANOTHER ANTICYCLONIC CIRCULATION IS CENTERED 
NEAR 11N134W. A 50-60 KT SUBTROPICAL JET ENTERS THE AREA NEAR 
15N140W AND EXTENDS NE-E AROUND THE NORTHERN PERIPHERY OF THE 
ANTICYCLONIC CIRCULATIONS TO THE SOUTHERN TIP BAJA CALIFORNIA. 

HIGH PRESSURE 1025 MB IS CENTERED NEAR 28N148W WITH SURFACE RIDGE 
EXTENDING TO 21N111W. WITH THIS WEAKER HIGH PRESSURE FURTHER FROM 
THE AREA COMPARED TO THE PAST SEVERAL DAYS...THERE IS ONLY A SMALL 
AREA OF NE 20 KT TRADES FROM 06N TO 20N W OF 135W. THESE TRADES WILL 
DROP BELOW THE 20 KT IN 48 HOURS.

A 1011 MB LOW PRES IS CENTERED NEAR 9N117W...AND IS NEARLY 
STATIONARY. WINDS TO 20 KT ARE WITHIN ABOUT 120 NM OF THE CENTER. 
SCATTERED TO NUMEROUS MODERATE TO STRONG CONVECTION IS WITHIN 250 NM 
NE AND E QUADRANTS. 

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