000
AXPZ20 KNHC 260328
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE AUG 26 2008

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 
0315 UTC.

...SPECIAL FEATURE...

TROPICAL DEPRESSION JULIO IS CENTERED OVER GULF OF CALIFORNIA 
NEAR 28.0N 112.7W AT 26/0300 UTC MOVING N NW OR 345 DEG AT 06 
KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1002 MB. MAXIMUM 
SUSTAINED WIND SPEED IS 30 KT WITH GUSTS TO 45 KT. CURRENTLY 
SCATTERED MODERATE CONVECTION IS NOTED OVER THE GULF OF 
CALIFORNIA TO THE S OF 29N. SEE THE LATEST NHC FORECAST/ADVISORY 
UNDER AWIPS/WMO HEADERS MIATCMEP1/WTPZ21 KNHC FOR MORE DETAILS.

...TROPICAL WAVE...

A TROPICAL WAVE IS N OF 03N ALONG 84W MOVING W AT ABOUT 17 KT. 
ONLY SLIGHT ENHANCEMENT OF CONVECTION IS NOTED OVER THE PACIFIC 
WATERS.

...ITCZ...

THE ITCZ AXIS EXTENDS ALONG 11N86W TO 08N104W TO 14N118W TO 
08N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS NOTED 
WITHIN 60 NM EITHER SIDE OF LINE FROM 08N87W TO 06N97W AND ALSO 
WITHIN 150 NM EITHER SIDE OF LINE FROM 14N120W TO 12N129W. 
SCATTERED MODERATE CONVECTION IS NOTED WITHIN 120 NM OF 09N110W 
AND 09N120W AND ALSO WITHIN 90 NM EITHER SIDE OF LINE FROM 
09N125W TO 09N138W.

...DISCUSSION...

A COUPLE OF UPPER TROUGHS ARE NOTED OVER THE NORTHERN PORTION NW 
OF 30N116W TO 21M140W. AN UPPER LEVEL ANTICYCLONE...ASSOCIATED 
WITH DECAYING TROPICAL CYCLONE JULIO IS NEAR 27N110W WITH RIDGE 
SW TO 21N125W AND APPEARS TO BE BLOCKING THE SE ADVANCE OF THE 
UPPER TROUGHS. E OF THIS RIDGE...AN UPPER TROUGH EXTENDS ALONG 
18N92W TO 15N97W. NE UPPER FLOW DOMINATES THE DEEP TROPICS E OF 
130W.

CONVECTION IS ENHANCED OVER CENTRAL OLD MEXICO...AND ENHANCED 
EARLIER OVER JULIO...AND ALONG THE ITCZ BETWEEN 114W AND 132W. 
THE RESULTANT DEBRIS MOISTURE IS CONCENTRATED N OF 17N BETWEEN 
100W AND 114W AND S OF 17N BETWEEN 112W AND 133W. OTHERWISE VERY 
DRY UPPER AIR DOMINATES THE DISCUSSION AREA W OF A LINE FROM 
28N114W TO 12N140W. AT THE LOW LEVELS LOCALLY OVERCAST 
STRATOCUMULUS IS NOTED N OF 20N.

$$
NELSON