000
AXPZ20 KNHC 260341
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON JUN 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

...TROPICAL WAVES...
TROPICAL WAVE ALONG 77W HAS BEEN MOVING W AT 12 KT THE PAST FEW 
DAYS AND WILL MOVE INTO THE E PAC WATERS TONIGHT.

TROPICAL WAVE ALONG 97W N OF 4N MOVING W 12 KT. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 90 NM OF AXIS N OF 6N 
TO THE COAST OF CENTRAL AMERICA.

TROPICAL WAVE ALONG 108W FROM 6N TO 15N MOVING W 12 KT.  
SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 90 NM OF 
WAVE AXIS WITH CYCLONIC TURNING OBSERVED WITHIN THE ITCZ AT 
9N109W.

TROPICAL WAVE ALONG 128W FROM 7N TO 15N MOVING W AT 10 KT THE 
PAST 24 HOURS. ONLY SLIGHT CONVECTIVE ENHANCEMENT NOTED ALONG 
THE ITCZ AT THE MOMENT.

TROPICAL WAVE ALONG 138W FROM 5N TO 14N MOVING W 10 KT. UPPER 
LEVEL SUBSIDENCE IS SUPPRESSING CONVECTION AT THE MOMENT. 

..ITCZ...
INTERTROPICAL CONVERGENCE ZONE AXIS 9N78W 11N96W 10N126W 
6N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 270 NM EITHER 
SIDE OF LINE 10N78W 12N132W. 

...DISCUSSION...
A CUTOFF UPPER CYCLONE IS STILL EVIDENT AT 31N137W WITH A 
TROUGH EXTENDING S ALONG 23N137W TO A BASE NEAR 12N137W. THIS 
SYSTEM IS NOW PROGGED TO MOVE SLOWLY E AND DEEPEN S TO THE 
EQUATOR AS A TROPICAL UPPER RIDGE AMPLIFIES N ALONG 150W WITH 
ITS ANTICYCLONIC FLOW SPILLING SE INTO THE TROUGH ALONG 138W ON 
MON.  

AN UPPER ANTICYCLONE IS QUASI-STATIONARY NEAR 15N118W. A RIDGE 
AXIS EXTENDS SW TO NEAR 11N129W ENHANCING CONVECTION ALONG THE 
ITCZ BETWEEN 118W AND 130W. THE RESULTANT DEBRIS MOISTURE 
SPREADS N AND NE ALONG THE W PERIPHERY OF THE ANTICYCLONE TO 
NEAR 22N126W WHERE IT TURNS E TO NEAR 20N117W WHERE IT 
EVENTUALLY EVAPORATES. A RIDGE ALSO EXTENDS N TO BEYOND 32N125W 
MERGING WITH A LARGE RIDGE DOMINATING THE W COAST OF N AMERICA.
 
THE ENVELOPE OF ANTICYCLONIC FLOW IS N OF THE ITCZ SQUEEZED 
BETWEEN 128W AND 118W. AN UPPER CYCLONE IS NOTED NEAR 32N120W...
SLIPPING SW WITH TIME...WITH AN UPPER TROUGH EXTENDING S THROUGH 
ANOTHER CYCLONE AT 24N117W TO A BASE NEAR 18N109W. AT THE 
SURFACE A RIDGE EXTENDS ALONG 32N132W TO 15N103W. A WEAK TROUGH 
IS STILL EVIDENT ALONG 32N127W TO 28N137W. BROKEN TO OVERCAST 
STRATOCUMULUS IS OBSERVED NW OF LINE 17N140W 24N112W.
  
A TROPICAL UPPER TROUGH...TUTT...EXTENDS ACROSS THE SW N ATLC 
ALONG 30N53W ACROSS S FLORIDA TO A BASE OVER MEXICO AT 18N96W.
JUST TO S...AN UPPER ANTICYCLONE IS NEAR 14N104W WITH ITS 
ENVELOPE OF ANTICYCLONIC FLOW ZONAL ALONG 21N JUST TO THE S OF 
THE TUTT THEN SPILLING SE OVER THE CENTRAL CARIBBEAN AND 
RETURNING W ALONG THE TROPICAL E PAC WATERS JUST N OF THE 
EQUATOR TURNING NW ALONG 110W...WITH UPPER DIFFLUENCE ENHANCING 
CONVECTION ALONG THE E PAC ITCZ TO THE E OF 110W.

$$
NELSON