000
AXPZ20 KNHC 031524
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU JUN 03 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.

...TROPICAL WAVE...

TROPICAL WAVE EXTENDS FROM WESTERN PANAMA TO 06N81W. A RELATIVE 
VORTICITY MAXIMUM IS NOTED NEAR THE WAVE AXIS. THE WAVE ALSO 
COINCIDES WITH A DEEP LAYER MOISTURE MAXIMUM EVIDENT IN TOTAL 
PRECIPITABLE WATER IMAGERY. SCATTERED MODERATE CONVECTION IS 
ALONG THE WAVE FROM 05N TO 07N.

...ITCZ...

AXIS IS ALONG 09N84W TO 08N97W TO 10N109W TO 08N118W TO 06N127W 
TO 07N140W. SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 
120 NM N OF THE AXIS BETWEEN 88W AND 91W...WITHIN 75 NM OF THE 
AXIS BETWEEN 91W AND 93W...AND WITHIN 120 NM S OF THE AXIS 
BETWEEN 93W AND 95W. SCATTERED MODERATE CONVECTION IS WITHIN 60 
NM S OF THE AXIS BETWEEN 107W AND 110W...AND WITHIN 120 NM OF 
THE AXIS BETWEEN 114W AND 116W. SCATTERED MODERATE TO STRONG 
CONVECTION IS WITHIN 75 NM S OF THE AXIS BETWEEN 117W AND 120W 
....WITHIN 90 NM S OF THE AXIS BETWEEN 127W AND 132W...AND 
WITHIN 90 NM S OF THE AXIS W OF 133W.

...DISCUSSION...

AN UPPER LEVEL ANTICYCLONIC IS POSITIONED NEAR 29N127W WITH A 
RIDGE NW TO 32N134W AND ALSO ALONG 30N E INTO NW MEXICO. S OF 
THE RIDGE A SHARP UPPER LEVEL TROUGH TROUGH EXTENDS
FROM THE BIG BEND OF TEXAS ACROSS NORTHERN MEXICO ACROSS THE 
SOUTHERN TIP OF BAJA CALIFORNIA TO 22N113W TO 22N129W TO 
25N140W. MODERATE TO STRONG SUBSIDENCE WITH DRY AIR AT THE MID 
AND UPPER LEVELS COVERS THE AREA FROM 14N TO 24N E OF 130W. 

IN THE DEEP TROPICS AN UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
CENTERED NEAR 12N113W. UPPER LEVEL DIFFLUENT FLOW S-SW OF THE 
ANTICYCLONE IS ENHANCING CONVECTION ALONG THE ITCZ MAINLY 
BETWEEN 110W AND 124W. A RIDGE EXTENDS FROM THE ANTICYCLONIC 
CIRCULATION TO ANOTHER ANTICYCLONIC CIRCULATION CENTERED NEAR 
THE GULF OF TEHUANTEPEC. DRY AIR IS IN PLACE FROM 10N TO 14N 
BETWEEN 94W AND 110W...WITH CONVECTION BEING ENHANCED ON THE SE 
SIDE OF THE TEHUANTEPEC ANTICYCLONE E OF 94W.

AT THE SURFACE...1021 MB HIGH PRES IS JUST W OF THE DISCUSSION 
AREA CENTERED NEAR 28N141W WITH A BROAD AND WEAK RIDGE COVERING 
THE AREA N OF 14N W OF 105W. A SMALL AREA OF NE 20 KT TRADES IS 
PRESENT FROM 08N TO 14N W OF 130W AND ARE EXPECTED TO DIMINISH 
TO LESS THAN 20 KT BETWEEN 24-48 HOURS. 

A SURFACE TROUGH EXTENDS FROM 13N117W TO 07N123W. SCATTERED 
MODERATE TO STRONG CONVECTION IS WITHIN 60 NM W OF THE TROUGH N 
OF 09N...AND WITHIN 150 NM W OF THE TROUGH S OF 09N.

$$
LEWITSKY