000
AXPZ20 KNHC 130907
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC THU MAR 13 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 6N77W 10N105W 8N130W 9N140W. SCATTERED MODERATE 
ISOLATED STRONG CONVECTION WITHIN 120 NM EITHER SIDE OF AXIS 
FROM 113W TO 117W. SCATTERED MODERATE CONVECTION WITHIN 60 NM N 
OF AXIS FROM 131W TO 135W.

...DISCUSSION...
UPPER LEVEL CYCLONIC CIRCULATION OVER THE SW PORTION OF THE AREA 
IS CENTERED NEAR 15N138W DRIFTING W. SOME MID/UPPER LEVEL 
MOISTURE IS DEVELOPING ALONG THE E SIDE OF THE CIRCULATION. AN
UPPER LEVEL RIDGE IS NW OF THE CYCLONIC CIRCULATION. MODERATE TO 
STRONG SUBSIDENCE WITH DRY STABLE AIR IS BETWEEN THE TWO 
SYSTEMS. MID/UPPER LEVEL TROUGH EXTENDS FROM SE NEW MEXICO 
THROUGH THE SOUTHERN BAJA PENINSULA TO 19N117W. THE TROUGH IS 
CAUSING SOME CLOUDINESS OVER MEXICO MAINLY N OF 24N. MID/UPPER
LEVEL RIDGE EXTENDS FROM THE CARIBBEAN ACROSS NICARAGUA AND
HONDURAS THEN NW INTO SOUTHERN MEXICO. MODERATE TO STRONG 
SUBSIDENCE WITH MOSTLY CLEAR SKIES WITHIN THE RIDGE FROM THE 
ITCZ TO 18N E OF 97W.

SURFACE RIDGE IS N OF 10N W OF 110W. A SURFACE TROUGH FROM THE S 
PACIFIC CROSSES THE EQUATOR AT 106W TO 3N113W. A FEW SHOWERS ARE 
ALONG THE TROUGH.

$$
DGS