000
AXPZ20 KNHC 280319
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT JUL 28 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.

...TROPICAL WAVES...
TROPICAL WAVE ALONG 107W FROM 6N TO 15N MOVING W 10 KT. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS LOCATED FROM 7N 
TO 12N BETWEEN 107W AND 112W. LATEST SATELLITE IMAGERY INDICATES 
A BROAD AREA OF CYCLONIC TURNING WITHIN TWO TO THREE DEGREES 
EITHER SIDE OF THE WAVE AXIS.      

...ITCZ...
ITCZ AXIS ALONG 9N83W 12N105W 7N120W AND THEN FROM 16N118W 
10N130W 8N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED FROM 7N TO 12N BETWEEN 107W AND 112W.  

...DISCUSSION...
N OF 20N...
A LARGE MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED IN 
THE VICINITY OF 25N123W...MOVING WEST 10 TO 15 KNOTS. CYCLONIC 
FLOW COVERS THE AREA NORTH OF 20N BETWEEN 118W AND 130W. AT THE 
SURFACE THE REMNANTS OF DALILA ARE CENTERED NEAR 24N119W. THE 
CIRCULATION IS DEVOID OF ANY DEEP CONVECTION BUT THE LATEST 
INFRARED SATELLITE IMAGERY INDICATES A SWIRL OF LOW LEVEL CLOUDS 
UP TO THREE DEGREES FROM THE CENTER WITH WINDS ESTIMATED AT 20 
TO 25 KNOTS. THE LOW WILL GRADUALLY DISSIPATE OVER THE NEXT DAY 
OR TWO.

S OF 20N...
WATER VAPOR IMAGERY SHOWS A LARGE AREA OF SUBSIDENCE BETWEEN 
118W TO BEYOND 140W. FURTHER EAST...THE FLOW ALOFT IS EASTERLY 
TO NORTHEASTERLY TO THE MEXICAN AND CENTRAL AMERICA COAST. THIS 
INCLUDES THE AREA IN THE VICINITY OF THE TROPICAL WAVE ALONG 
106W. RECENT CLOUD DRIFT WINDS IN THIS AREA ARE IN THE 35 TO 45 
KNOT RANGE.

$$
CAB