000
AXPZ20 KNHC 030211
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE APR 03 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0245 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 6N78W 7N115W 5N125W 3N140W. 
SCATTERED MODERATE 90NM WIDE 78W TO 94W.

...DISCUSSION...

UPPER LEVELS...A N-S RIDGE IS ALONG 128W MOVING E 15-20 KT. A 
DEEP TROUGH EXTENDS FROM 32N110W TO 7N111W MOVING ENE 20-25 KT. 
DRY SINKING AIR ALOFT IS N OF 15N E OF 124W. A SWLY JET 
ORIGINATES AT THE BASE OF THE TROUGH AND EXTENDS ACROSS MEXICO 
AND INTO S CENTRAL U.S. CARRYING A PLUME OF MOISTURE 300 NM E OF 
A LINE FROM 17N1068W 30N99W. A FEW CLUSTERS OF MODERATE 
CONVECTION HAVE DVELOPED ALONG THE ITCZ AXIS E OF 94W.

AT THE SFC...WEAK HIGH  DOMINATES THE AREA WITH A RIDGE FROM 32N 
128W TO 20N105W. 20 TO 25 KT NE WINDS ...ARE NEAR THE NORTH 
COAST OF COSTA RICA AND THE SOUTHERN PART OF NICARAGUA INCLUDING 
THE GULF OF PAPAGAYO. 

$$
FT