000
AXPZ20 KNHC 240910
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU APR 24 2008

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
ITCZ AXIS ALONG 6N77W 7N85W 5N110W 2N1120W 3N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 100 NM N OF AXIS FROM 
115W TO 124W.

...DISCUSSION...
MOSTLY ZONAL FLOW PATTERN ACROSS THE AREA N OF 20N WITH FLAT 
BROAD UPPER LEVEL TROUGH EXTENDING FROM NORTHERN MEXICO  25N120W 
TO 26N130W. A 65-75 KT WIND MAX S OF THE BROAD TROUGH FROM 
24NW40W 23N120W INTO NORTHERN MEXICO NEAR 30N105W. MODERATE TO 
STRONG SUBSIDENCE NOTED WITHIN 420 NM N OF WIND MAX. 
ANTICYCLONIC CIRCULATION CENTERED NEAR 8N120W WITH BROAD RIDGE 
COVERING REMAINING AREA S OF 20N W OF 110W.

UPPER LEVEL RIDGE EXTENDS FROM COLOMBIA WWD ACROSS PANAMA AND 
COSTA RICA TO 11N100W. DRY AIR IS LOCATED N OF THE RIDGE AXIS 
WITH ABUNDANT TROPICAL MOISTURE S OF THE RIDGE AXIS WITHIN AN 
AREA OF DIFLUENT FLOW. A NARROW SHEAR AXIS SEPARATES THE 
ANTICYCLONIC CIRCULATION AND THE RIDGE FROM CENTRAL MEXICO FROM 
18N96W TO 8N106W.

A 1027 MB HIGH PRES IS CENTERED NEAR 29N132W WITH RIDGE FROM THE 
HIGH TO 13N1110W. BROKEN STRATOCUMULUS CLOUDS COVERS THE AREA N 
OF 10N W OF 120W.

$$
DGS