000
AXPZ20 KNHC 141602
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC FRI APR 14 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 
1500 UTC.

...ITCZ AXIS 4N77W 7N90W 5N110W 7N125W 5N140W. SCATTERED 
MODERATE TO STRONG WITHIN 150 NM N OF AXIS W OF 135W.

...DISCUSSION...
MID/UPPER LEVEL TROUGH EXTENDS FROM AN UPPER LEVEL CYCLONIC 
CIRCULATION OFF THE SOUTHERN CALIFORNIA COAST TO 32N123W. AS THE 
TROUGH PULLS NWD AND WEAKENS THE ASSOCIATED SURFACE COLD FRONT 
AS WEAKENED TO A TROUGH FROM 32N120W TO 25N 122W. BROKEN TO 
OVERCAST LOW TO MID LEVEL CLOUDS AND FEW SHOWERS ARE WITHIN 100 
NM E OF THE TROUGH. MODERATE TO STRONG SUBSIDENCE WITH DRY 
AIR AT THE MIDDLE LEVELS FROM 17N TO 28N W OF 130W AND WITHIN 
240 NM EITHER SIDE OF LINE 24N130W TO 28N123W.
A 110-130 KT SUBTROPICAL JET IS SE OF THE TROUGH AXIS FROM 
20N127W  NE INTO SOUTHERN CALIFORNIA.

MID/UPPER LEVEL ANTICYCLONIC CIRCULATION NEAR 18N111W WITH RIDGE 
EXTENDING NE ACROSS NORTHERN MEXICO INTO TEXAS. SHARP TROUGH 
EXTENDING FROM THE W CARIBBEAN OVER CENTRAL AMERICA NEAR 
HONDURAS/NICARAGUA INTO THE PACIFIC TO NEAR 9N96W. AN UPPER 
LEVEL RIDGE ACROSS S AMERICA EXTENDS NW INTO PANAMA AND COSTA 
RICA AND INTO THE PACIFIC NEAR 8N91W. WITH THE EXCEPTION OF 
PATCHY MOISTURE ALONG THE ITCZ A LARGE AREA STRONG SUBSIDENCE 
COVERS THE AREA S OF 25N BETWEEN 85W AND 110W.

$$
DGS