000
AXPZ20 KNHC 062053
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU APR 06 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.

...ITCZ...
AXIS 5N80W 3N100W 5N120W 4N120W. 
SCATTERED MODERATE ISOLATED STRONG 60 NM WIDE FROM 120W TO 135W.
 
...DISCUSSION...
MID/UPPER TROUGH ALONG NW CORVER OF AREA IS MOVING E 20 -25 KT. 
BROAD N/S RIDGE EXTENDS FROM ANTICYCLONE NEAR 11N126W TO 
32N128W. A MID/UPPER TROUGH WITH AXIS 30N110W TO 10N118W IS 
MOVING E 15-20 KT. BROAD UPPER RIDGE WITH AXIS ALONG 32N90W TO 
WEAK ANTICYCLONIC CENTER AT 8N100W CUTS OFF FLOW OF TROPICAL 
MOISTURE N OF 10N ADVECTED E BY WEAK JETS ROUNDING BASES OF 
PREVIOUSLY MENTIONED TROUGHS.  VERY DRY AIR MASS DUE TO MODERATE 
TO STRONG UPPER SUBSIDENCE E OF RIDGE AXIS EXTEND THROUGH 
CENTRAL AMERICA TO SRN HALF OF GULF OF MEXICO AND WRN 
CARIBBEAN.  
A SURFACE HIGH 1023 MB AT 29N124W WITH A RIDGE TO 
DOMINATES THE AREA. 

$$
TORRE