000
AXPZ20 KNHC 290958
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON MAY 29 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0915 UTC.

...SPECIAL FEATURE...

TROPICAL STORM ALETTA IS ESTIMATED NEAR 16.2N 101.0W AT 0900 
UTC. THIS POSITION IS ABOUT 95 MILES...155 KM...SOUTHWEST OF 
ACAPULCO MEXICO. ALETTA IS DRIFTING N AT 2 KT. ESTIMATED MINIMUM 
CENTRAL PRESSURE IS 1002 MB. MAXIMUM SUSTAINED WIND SPEED IS 40 
KT WITH GUSTS TO 50 KT. NUMEROUS STRONG CONVECTION WITHIN 75 NM 
E SEMICIRCLE AND 45 NM W SEMICIRCLE.  OUTFLOW IS IMPROVING AND 
CONVECTION IS MORE ORGANIZED AROUND THE SYSTEM.  SEE LATEST NHC 
FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP1/WTPZ21 KNHC 
FOR MORE DETAILS. 

...TROPICAL WAVES...

A TROPICAL WAVE ALONG 95W FROM 2N TO 13N HAS MOVE W 10 KT. 
SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION WITHIN 45 NM 
OF THE POINT 5.8N92W AND THE POINT 6N95.4W.  THERE IS LITTLE 
ORGANIZATION TO THE CONVECTION.

..ITCZ...

ITCZ AXIS IS CENTERED ALONG...5N77W 5N90W 13N110W 7N120W 4N140W. 
SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION IS WITHIN 60 
NM OF THE POINT 3.6N78.3W. SCATTERED MODERATE TO STRONG 
CONVECTION IS WITHIN 60 NM OF THE POINT 13N111.8W. SCATTERED 
MODERATE TO STRONG CONVECTION IS WITHIN 75 NM EITHER SIDE OF 
AXIS FROM 124W TO 135W.

...DISCUSSION...

MIDDLE AND UPPER LEVEL TROUGH IS NORTH OF 28N E OF 125W.  THE 
SYSTEM IS MOVING EAST OVER THE SOUTHERN PART OF CALIFORNIA AND 
NORTHWESTERN MEXICO.  LITTLE WEATHER IS ASSOCIATED WITH THE 
SYSTEM.

MIDDLE AND UPPER LEVEL CYCLONIC CIRCULATION IS FROM 10N TO 25N W 
OF 130W.  DRY AIR IS OBSERVED IN THE MIDDLE AND UPPER LEVEL 
IMPLYING UPPER LEVEL SUBSIDENCE. 

THE REMAINDER OF THE AREA IS COVERED BY WEAK ANTICYCLONIC FLOW 
IN THE MIDDLE AND UPPER LEVELS.

SURFACE HIGH PRESSURE IS CENTERED NEAR 32N135W AND THE 
ASSOCIATED CIRCULATION COVERS THE AREA NORTH OF 12N WEST OF 
110W.  REMAINDER OF AREA IS COVERED BY WEAK TROUGH.  

$$
LL