000
AXPZ20 KNHC 050403 RRA
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU APR 05 2007

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 
0230 UTC.

...ITCZ...7N78W 8N84W 4N93W 5N140W. 
SCATTERED MODERATE TO STRONG 120 NM WIDE 83W TO 91W. SCATTERED 
MODERATE 90 NM WIDE 100W TO 103W.

...DISCUSSION...
MID/UPPER LEVEL TROUGH 32N131W 20N139W. 85-95 KT JET STREAM SE 
OF THE TROUGH AXIS FROM 19N140W TO 25N134W TO 32N130W. MODERATE 
TO STRONG SUBSIDENCE IS WITHIN 240 NM W OF THE JET...WITH A 
PLUME OF TROPICAL MOISTURE BEING ADVECTED NEWD N OF 25N E OF THE 
JET AXIS TO 118W. AN  UPPER LEVEL RIDGE EXTENDS FROM 32N120W TO 
13N125W. DEEP LAYER TROUGH E OF THE RIDGE WITH AXIS 32N99W TO  
13N104W. AN E-W RIDGE EXTENDS FROM AN ANTICYCLONIC CIRCULATION 
OVER NW COLOMBIA ACROSS THE SW CARIBBEAN TO NICARAGUA AND 
HONDURAS TO THE YUCATAN CHANNEL. UPPER LEVEL DIFFLUENCE SW OF 
THE RIDGE IS ENHANCING TSTMS ALONG THE ITCZ E OF 91W. 

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