000
AXPZ20 KNHC 262115
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SAT AUG 26 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...SPECIAL FEATURE...

AT 26/2100 UTC...TROPICAL STORM ILEANA WAS CENTERED NEAR 22.8N 
119.2W...OR 500 NM W OF THE SOUTHERN TIP OF BAJA CALIFORNIA... 
MOVING WNW 5 KT. MAXIMUM SUSTAINED WIND SPEED IS 50 KT WITH 
GUSTS TO 60 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 994 MB. 
SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS 
MIATCMEP5/WTPZ25 KNHC FOR MORE DETAILS. ILEANA IS SLOWLY 
WEAKENING. SCATTERED MODERATE CONVECTION IS WITHIN 100 NM OF THE 
CENTER.

LOW CENTER NEAR 11N90W MOVE W AT 10 KT.  SCATTERED MODERATE TO 
STRONG CONVECTION IS WITHIN 90 NM OF THE POINT 12.4N90.8W.  THIS 
CONVECTION IS NOT ORGANIZED IN A CYCLONIC ROTATION AND IS MOVING 
AWAY FROM THE CENTER.  THIS IS NOT FAVORABLE FOR DEVELOPMENT 
HOWEVER THIS SYSTEM MAY DEVELOP INTO A TROPICAL CYCLONE WITHIN 
THE NEXT 36 HOURS.

...TROPICAL WAVES...

TROPICAL WAVE ALONG 87W N OF 3N MOVING W AT 10 TO 15 KT. 
CONVECTION ASSOCIATED WITH THIS FEATURE HAS DIMINISHED AS THE 
WAVE APPROACHES THE LOW PRESSURE DISCUSSED IN THE SPECIAL 
FEATURES SECTION.

A LOW PRESSURE THAT WAS NEAR 12N108W HAS DECREASED IN 
ORGANIZATION AND NOW LOOKS MORE LIKE A TROPICAL WAVE ALONG 107W 
FROM 5N TO 18N MOVING W 10 TO 15 KT.  SCATTERED MODERATE TO 
STRONG CONVECTION IS WITHIN 100 NM W OF THE WAVE AXIS AND SHOWS 
NO SIGNS OF ORGANIZED CIRCULATION.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG...5N77W 11N100W 10N130W 6N140W. 
SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 90 NM OF THE 
POINT 12.4N90.8W. SCATTERED MODERATE WITH ISOLATED STRONG 
CONVECTION IS WITHIN 60 NM OF THE POINT 10.9N100.8W AND 
13.7N109W.

...DISCUSSION...

EXCEPT FOR AN AREA 500 NM IN DIAMETER CENTERED NEAR 24.3N119.7W 
THE AREA NORTHWEST OF A LINE FROM 32N103W TO THE ITCZ NEAR 135W 
THE MIDDLE AND UPPER PART OF THE ATMOSPHERE AND DRY AND CLOUD 
FREE IMPLYING LARGE SCALE UPPER LEVEL SUBSIDENCE.  BROAD 
CYCLONIC FLOW IS NOTED IN THIS AREA IN THE MIDDLE AND UPPER 
LEVELS.  THE AREA WEST OF 120W NORTH OF 20N IS COVERED WITH 
BROKEN STRATOCUMULUS CLOUDS IN THE LOWER LEVELS.  

THE AREA SOUTHEAST OF THE LINE IS DIFFLUENT ALOFT WITH AMPLE 
MOISTURE IN THE MIDDLE AND UPPER LEVELS WITH MULTI LAYERED 
CLOUDS AND AREAS OF EMBEDDED CONVECTION.

WEAK RIDGE IS NORTH OF 23N WEST OF 125W.  ELSEWHERE BROAD TROUGH 
IS ANALYZED OVER THE AREA.

$$
LL