000
AXPZ20 KNHC 230907
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED APR 23 2008

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

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
ITCZ AXIS ALONG 06N77W TO 05N100W TO 01N120W TO 02N140W. 
SCATTERED MODERATE TO STRONG FROM 3N TO 7N BETWEEN 82W TO 100W.

...DISCUSSION...
BROAD UPPER LEVEL TROUGH ENTERS THE DISCUSSION AREA FROM 32N121W 
TO 25N135W. 75-85 KT JET EXTENDS FROM 20N140W 25N120W ACROSS 
CENTRAL BAJA CALIFORNIA TO SE ARIZONA. MODERATE TO STRONG 
SUBSIDENCE MAINTAINS WITH DRY AIR AT THE MID AND UPPER LEVELS OF 
THE ATMOSPHERE IS WITHIN 360 NM N OF THE JET...WITH 
BROKEN/OVERCAST CIRRUS CLOUDS ARE WITHIN 240 NM S OF THE JET. 
ANTICYCLONIC CIRCULATION CENTERED NEAR 8N120W WITH BROAD RIDGE 
COVERING REMAINING AREA S OF 20N W OF 110W.

UPPER LEVEL RIDGE FROM COLOMBIA ACROSS PANAMA AND COSTA RICE TO 
12N100W. DRY AIR IS LOCATED N OF THE RIDGE AXIS WITH ABUNDANT 
TROPICAL MOISTURE S OF THE RIDGE AXIS. A NARROW TROUGH SEPARATES 
THE ANTICYCLONIC CIRCULATION AND THE RIDGE FROM CENTRAL MEXICO 
FROM 19N98W TO 7N108W.

A 1025 MB HIGH PRES IS CENTERED NEAR 27N134W WITH RIDGE FROM THE
HIGH TO 11N1110W. BROKEN STRATOCUMULUS CLOUDS COVER THE AREA N 
OF 7N W OF 120W. 

$$
DGS