000
AXPZ20 KNHC 021646
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN APR 02 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY 
THROUGH 1445 UTC.

...ITCZ...
ITCZ AXIS ALONG  4N80W  6N88W  4N107W  5N126W  2N140W.  
SCATTERED MODERATE TO STRONG WITHIN 90 NM OF AXIS FROM 87W TO 
100W.  SCATTERED MODERATE ISOLATED STRONG WITHIN 120 NM N OF 
AXIS FROM 104W TO 128W.

...DISCUSSION...
LONGWAVE UPPER LEVEL TROUGH ENTERS NW PORTION OF AREA ALONG 136W 
N OF 20N.  A 80 KT JET CORE ROUNDS ITS BASE AN HEADS NE 
ADVECTING LARGE AMOUNTS OF TROPICAL MOISTURE IN 6 DEG SWATH S 
AND E OF LINE FROM 23N140W TO 32N127W.  

DOWNSTREAM...FLATTENED MID/UPPER LEVEL ANTICYCLONE INSERTS DRY 
AIRMASS EASTWARD TO BAJA CALIFORNIA AND N MEXICO.  WEAK UPPER 
LEVEL TROUGH FROM W TEXAS TO 22N108W EXTENDS DRYNESS ACROSS 
REMAINDER OF MEXICO INTO SRN HALF OF GULF OF MEXICO AND WRN 
CARIBBEAN.  

BROAD WELL ANCHORED ANTICYCLONE CENTERED OVER VENEZUELA SUPPLY 
TROPICAL MOISTURE AROUND ITS SRN PERIPHERY NEEDED FOR 
DEVELOPMENT OF DEEP CONVECTION ALONG ITCZ.

AT THE SURFACE...TROUGH EXTEND FROM 30N125W TO 1016 MB LOW PRES 
NEAR 26N132W CONTINUES TO 20N136W TIGHTENS GRADIENT WITH 1022 MB 
HIGH PRES CENTERED AT 29N120W.  TRADES REMAIN BRISK FROM 5N TO 
18N THROUGH PERIOD.  GULF OF PAPAGAYO WINDS ALSO REMAIN UNABATED 
THROUGH 48 HRS. 

$$
WALLY BARNES