000
AXPZ20 KNHC 091520
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE AUG 09 2011

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ/MONSOON TROUGH...

THE MONSOON TROUGH IS LOCATED FROM 10N86W TO 11N98W TO 15N110W 
TO 10N130W. THE ITCZ AXIS IS LOCATED FROM 10N130W TO 08N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS LOCATED WITHIN 
180 NM S OF THE MONSOON TROUGH BETWEEN 93W AND 105W. SCATTERED 
MODERATE CONVECTION IS LOCATED WITHIN 90 NM S OF THE MONSOON 
TROUGH BETWEEN 115W AND 126W.

...DISCUSSION...

N OF 18N...
AN AREA OF SOUTHWESTERLY WINDS ALOFT IS LOCATED N OF 18N W OF 
132W WITH SATELLITE CLOUD DRIFT WINDS INDICATING SPEEDS UP TO 30 
KT. A STATIONARY UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
CENTERED OVER NW MEXICO IN THE VICINITY OF 30N110W WITH 
CLOCKWISE FLOW EXTENDING WESTWARD TO 122W N OF 22N. A SMALL 
MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS FORMING NEAR 19N120W 
AND IS FORECAST TO MOVE NW. WATER VAPOR IMAGERY SHOWS A LARGE 
AREA OF SUBSIDENCE ALOFT N OF 18N W OF 125W. AT THE SURFACE THE 
REMNANTS OF EUGENE IS CENTERED NEAR 19N139W WITH A CENTRAL 
PRESSURE OF 1014 MB. THE LOW IS FORECAST TO DISSIPATE IN 24 
HOURS OR LESS. 

S OF 18N...
A LARGE AREA OF MODERATE EASTERLY WINDS ALOFT IS LOCATED FROM 
NEAR THE EQUATOR TO 12N BETWEEN 95W AND 140W. AT THE SURFACE AN 
AREA OF SW SWELL WITH SEAS TO 9 FT IS LOCATED S OF 11N BETWEEN 
105W AND 130W AND IS FORECAST TO CONTINUE OVER THE NEXT TWO DAYS.

$$
CAB