000
AXPZ20 KNHC 042048
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC WED APR 04 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2130 UTC.

...ITCZ...7N78W 8N84W 4N93W 5N140W. 
SCATTERED MODERATE TO STRONG 180 NM WIDE 83W TO 93W. SCATTERED 
MODERATE 120 NM WIDE 132W TO 136W.


...DISCUSSION...
MID/UPPER LEVEL TROUGH 32N133W 20N140W. 85-95 KT JET STREAM SE 
OF THE TROUGH AXIS FROM 19N140W TO 25N134W TO 32N132W. 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 120W. AN  UPPER LEVEL RIDGE EXTENDS FROM 32N120W TO 
13N125W. DEEP LAYER TROUGH E OF THE RIDGE WITH AXIS 32N100W TO  
13N106W. 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 90W. 

BROKEN TO OVERCAST LOW CLOUDS IS WITHIN 120 NM E OF THE FRONT. 
STATIONARY 1021 MB HIGH JUST N OF THE AREA NEAR 33N127W WILL 
PREVENT FURTHER WESTWARD MOVEMENT OF THE FRONT. 

$$
DGS