000
AXPZ20 KNHC 250906
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC FRI MAY 25 2007

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...
INTERTROPICAL CONVERGENCE ZONE AXIS 12N87W 7N110W 9N120W 7N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 150 NM 
EITHER SIDE OF AXIS FROM 92W TO 99W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION WITHIN 120 NM N OF AXIS FROM 122W TO 127W.

...DISCUSSION...
A BROAD UPPER LEVEL TROUGH EXTENDS FROM SW ARIZONA ACROSS THE 
BAJA PENINSULA TO 26N121W. A 75-85 KT JET IS S OF THE TROUGH 
FROM 25N124W TO THE COAST OF MEXICO NEAR 23N105W. AN UPPER LEVEL 
ANTICYCLONIC CIRCULATION  IS EVIDENT S OF THE TROUGH...WITH 
RIDGE FROM THE CIRCULATION TO 21N127W TO 28N129W. FLOW BETWEEN 
THE RIDGE AND A CYCLONIC CIRCULATION W OF THE AREA IS ADVECTING 
TROPICAL MOISTURE NWD FROM 10N-27N W OF 125W. ANOTHER E TO W 
RIDGE EXTENDS FROM THE ANTICYCLONE TO GUATEMALA. OTHERWISE DRY 
AIR AT THE MID AND UPPER LEVEL AIR IS N OF 15N BETWEEN MEXICO 
AND 125W.
 
A 1006 MB IS LOCATED NEAR 12N108W AND IS NEARLY STATIONARY. THE 
LOW IS BEING MONITORED FOR POSSIBLE TROPICAL CYCLONE DEVELOPMENT.
NUMEROUS MODERATE TO STRONG TSTMS FROM 8N TO 15N BETWEEN 105W 
AND 111W.

SURFACE RIDGE WITH AXIS FROM 32N140W TO 17N114W. A LARGE FIELD 
OF STRATOCUMULUS IS NOTED IN THE N OF 15N W OF 115W.

$$
DGS