000
AXPZ20 KNHC 010936
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN AUG 01 2010

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

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
THE INTERTROPICAL CONVERGENCE ZONE AXIS LIES FROM 08N82W TO 
08N100W TO 07N105W TO 11N135W TO 10N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 120 NM EITHER SIDE OF AXIS BETWEEN 83W 
AND 87W. SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM N OF 
AXIS BETWEEN 125W AND 135W. 

...DISCUSSION...

AN UPPER LEVEL ANTICYCLONE LIES OVER THE NW WATERS NEAR 19N130W 
WITH RIDGE EXTENDING NE TO SOUTHERN CALIFORNIA AND SW TO 
11N140W. AN UPPER LEVEL LOW IS CENTERED NEAR 21N123W. ASSOCIATED 
1008 MB SURFACE LOW IS SKEWED SOUTHEASTWARD NEAR 18N115W. 
SCATTERED MODERATE CONVECTION LIES WITHIN 210 NM N AND E 
QUADRANTS OF THIS LOW. UPPER LEVEL RIDGING PREVAILS ACROSS THE 
DEEP TROPICS. A 1008 MB SURFACE LOW IS NEAR 09N97W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION IS FOUND WITHIN 150 NM E 
QUADRANT. SURFACE HIGH PRESSURE IS CENTERED NEAR 39N141W. THE 
PRESSURE GRADIENT BETWEEN THIS HIGH AND THE ITCZ IS RESULTING IN 
A SMALL AREA OF 20 KT TRADES FROM 10N TO 16N W OF 131W. THE HIGH 
PRESSURE CENTER WILL SHIFT N OVER THE NEXT COUPLE OF DAYS WHICH 
WILL DECREASE THE TRADES BELOW 20 KT BY 48 HOURS. SOUTHERLY 
SWELLS ARE AFFECTING THE REGION S OF 10N AND WILL CONTINUE TO 
SUBSIDE THROUGH THE REMAINDER OF THE WEEKEND.

$$
AL