000
AXPZ20 KNHC 131503
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU APR 13 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 9N84W 6N110W 5N140W. SCATTERED MODERATE ISOLATED 
STRONG FROM 3N TO 7N BETWEEN 89W AND 94W AND FROM 6N TO 9N 
BETWEEN 134W AND 138W.
 
...DISCUSSION...
MID TO UPPER LEVEL TROUGH EXTENDS FROM CYCLONIC CIRCULATION NEAR
32N130W TO 20N140W. ISOLATED SHOWERS ARE NEAR THE UPPER LOW FROM 
26N TO 30N BETWEEN 128W AND 134W. OTHERWISE MODERATE TO STRONG 
SUBSIDENCE CREATING DRY/STABLE CONDITIONS FROM 17N TO 25N W OF 
132W. E OF THE TROUGH A 300 NM WIDE BAND OF HIGH CLOUDINESS IS S 
OF A SUBTROPICAL JET...95-130 KT...FROM 15N140W NEWD OVER THE N 
BAJA PENINSULA AND S CALIFORNIA. ASSOCIATED SURFACE COLD FRONT 
ENTERS AREA NEAR 32N124W 23N128W TO 18N134W. BROKEN TO OVERCAST 
LOW CLOUDS AND FEW LIGHT SHOWERS ARE WITHIN 150 NM E OF THE 
FRONT N OF 20N. MID TO UPPER LEVEL RIDGE EXTENDS FROM 
ANTICYCLONIC CIRCULATION NEAR 15N110W TO INTO NW MEXICO TO SE 
ARIZONA. UPPER LEVEL TROUGH WITH AXIS FROM THE NW CARIBBEAN 
THOUGH HONDURAS INTO THE PACIFIC NEAR 10N92W. STRONG SUBSIDENCE 
AND DRY/STABLE CONDITIONS ALOFT OVER PORTIONS OF CENTRAL AMERICA 
N OF COSTA RICA AND INTO MEXICO AND ACROSS THE PACIFIC N OF 10N 
E OF 115W.

$$
DGS