000
AXPZ20 KNHC 031503
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE APR 3 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ...
AXIS 5N77W 6N86W 6N115W 3N140W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION WITHIN 150 NM S OF AXIS FROM 81W TO 85W AND 
WITHIN 50 NM EITHER SIDE OF AXIS FROM 89W TO 93W. SCATTERED 
MODERATE CONVECTION WITHIN 70 NM EITHER SIDE OF AXIS FROM 121W 
TO 123W.

...DISCUSSION...
UPPER LEVEL RIDGE EXTENDS FROM 32N125W TO 7N140W. A 95-105 KT 
JET STREAM IS BETWEEN THE RIDGE AND A TROUGH W OF THE AREA FROM 
25N140W TO 32N131W. BROKEN CIRRUS CLOUDS ARE WITHIN 240 NM S OF 
THE JET AXIS. AN AREA OF SUBSIDENCE AND DRY AIR IS LOCATED FROM 
8N-25N BETWEEN 110W-130W. A MID/UPPER LEVEL TROUGH EXTENDS FROM 
SW TEXAS ACROSS NORTHERN MEXICO TO THE SOUTHERN TIP OF THE BAJA 
PENINSULA THEN CONTINUES S TO 11N107W. AN E-W RIDGE EXTENDS 
ALONG 10N...E OF 100W. UPPER LEVEL DIFFLUENCE IS ENHANCING ITCZ 
CONVECTION E OF 95W.

HIGH PRES RIDGE WITH AXIS FROM 32N126W TO 17N109W. BROKEN TO 
OVERCAST STRATUS AND STRATOCUMULUS CLOUDS WITHIN THE RIDGE N OF 
15N W OF 120W. A 1011 MB LOW OVER THE FAR NORTHERN GULF OF 
CALIFORNIA NEAR 31N114W WITH TROUGH FROM THE LOW TO 27N 111W.

$$
DGS