000
AXPZ20 KNHC 151507
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT APR 15 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 N77W 6N86W 5N105W 6N140W. SCATTERED MODERATE TO 
STRONG WITHIN 150 NM N OF AXIS FROM 110W AND 119W AND WITHIN 150 
NM EITHER SIDE OF AXIS FROM 131W TO 138W.

...DISCUSSION...
BROAD MID/UPPER LEVEL TROUGH COVERS THE AREA N OF 15N W OF 120W. 
MODERATE TO STRONG SUBSIDENCE WITH DRY AIR AT THE MIDDLE LEVELS 
IS NW OF LINE FROM 15N140W 20N125W TO THE NORTHERN BAJA 
PENINSULA. A 90-100 KT SUBTROPICAL JET IS E OF THE TROUGH AXIS 
FROM 25N122W NE TO SW NEW MEXICO. MID/UPPER LEVEL RIDGE EXTENDS 
FROM 9N113W TO ANTICYCLONIC CIRCULATION NEAR 16N112W WITH RIDGE 
CONTINUING NE ACROSS CENTRAL MEXICO INTO THE NW GULF OF MEXICO.

A VERY SHARP MID/UPPER LEVEL TROUGH EXTENDING FROM THE YUCATAN 
PENINSULA TO CYCLONIC CIRCULATION NEAR 13N96W CONTINUING TO 
3N98W. WITH THE EXCEPTION OF PATCHY MOISTURE ALONG THE ITCZ A 
LARGE AREA STRONG SUBSIDENCE COVERS THE AREA S OF 25N BETWEEN 
85W AND 105W. AN UPPER LEVEL RIDGE ACROSS THE SW CARIBBEAN 
EXTENDS W INTO NICARAGUA AND AND HONDURAS.

SURFACE HIGH PRES RIDGE IS N OF 15N W OF 115W...WITH BROKEN TO 
OVERCAST STRATOCUMULUS CLOUDS N OF 13N W OF 120W. 

$$
DGS