000
AXPZ20 KNHC 100313
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL 
HURRICANE CENTER MIAMI FL
0405 UTC THU AUG 10 2006

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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY 
THROUGH 0315 UTC.

...TROPICAL WAVES...

A TROPICAL WAVE ALONG 135W TO THE N OF 4N HAS MOVED W 12 KT OVER 
THE PAST 24 HOURS. CONVECTION IS FLARING WITHIN 90 NM E OF THE 
WAVE FROM 8N TO 14N WITH BROAD CYCLONIC TURNING CENTERED ON 
10N136W.

A TROPICAL WAVE ALONG 123W TO THE N OF 2N HAS MOVED W 12 KT 
DURING THE PAST 24 HOURS. SCATTERED MODERATE CONVECTION NOTED 
FROM 8N TO 16N WITHIN 90 NM OF THE WAVE AXIS BUT DECREASING AT 
THE MOMENT.

A TROPICAL WAVE IS N OF 3N ALONG 88W AND HAS MOVED W AT ABOUT 18 
KT THE PAST 24 HOURS. CONVECTION IS ENHANCED ALONG THE ITCZ AT 
6N89.5W AND DISSIPATING OVER HONDURAS. 

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 9N78W 9N128W 8N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION NOTED WITHIN 180 NM EITHER 
SIDE OF LINE 7N80W 12N123W 8N140W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION IS OBSERVED ELSEWHERE FROM 12N TO 20N BETWEEN 
102W AND 121W. 

...DISCUSSION...

AN UPPER ANTICYCLONE IS OVER N TEXAS AT 34N97W WITH A RIDGE 
EXTENDING W ALONG ALONG 32N TO ANOTHER ANTICYCLONE AT 32N115W 
WITH THE RIDGE EXTENDING SW TO A CREST AT 23N140W. 

A SMALL UPPER CYCLONE IS NOTED NEAR 10N105W WITH AN INVERTED 
UPPER TROUGH EXTENDING N TO NEAR 19N108W. ANOTHER UPPER CYCLONE 
IS NOTED NEAR 18N122W AND IS SHIFTING SW WITH TIME. AN UPPER 
CYCLONE IS NEARLY STATIONARY AT 5N132W. AN UPPER ANTICYCLONE IS 
CENTERED NEAR 15N116W WITH A RIDGE N TO A CREST AT 20N114W. 
CONVECTION IS ENHANCED UNDER THE RIDGE. 

DRY UPPER AIR IS NOTED WITHIN 240 NM EITHER SIDE OF LINE 33N119W 
21N132W. OTHERWISE UPPER DEBRIS MOISTURE MOSTLY FROM ITCZ 
CONVECTION IS NOTED THROUGHOUT THE TROPICAL AREA N OF 5N.  

AT THE SURFACE...A RIDGE EXTENDS FROM 32N133W SE TO 21N110W. 
BROKEN STRATOCUMULUS CLOUDS ARE NOTED N OF 13N W OF 116W. 

GAPS WINDS...LATEST SSMI DATA INDICATES N TO NE WINDS TO 20 KT 
CONTINUE IN THE GULF OF TEHUANTEPEC...EXPECTED TO LAST ANOTHER 
8 HOURS OR SO. 
 
$$
NELSON