000
AXPZ20 KNHC 020924
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED MAY 02 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...

INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...6N77W 6N100W 
7N140W.  SCATTERED MODERATE TO STRONG CONVECTION IS OVER THE 
GULF OF PANAMA.  SCATTERED MODERATE CONVECTION IS WITHIN 60 NM 
OF THE POINT 9.1N84.7W JUST OFF THE COAST OF COSTA RICA.
SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION IS WITHIN 75 
NM OF THE POINT 6.7N99.2W.

...DISCUSSION...

CYCLONIC CIRCULATION HAS MOVED OVER THE SOUTHWEST U.S. AND WILL 
CONTINUE TO MOVE AWAY FROM THE AREA.  BROAD TROUGH IS NORTH OF A 
LINE FROM 29N100W 24N115W 24N135W 20N140W. NORTH OF THIS LINE TO 
ABOUT 31N THE ATMOSPHERE IS DRY AND CLOUD FREE IN THE MIDDLE AND 
UPPER LEVELS. IN THE LOWER LEVELS OVERCAST STRATOCUMULUS IS EAST 
OF 120W WITHIN 240 NM NORTH OF THE LINE WEST OF 128W.  OTHERWISE 
THE LOWER LEVELS ARE ALSO CLEAR. BROKEN TO OVERCAST HIGH CLOUDS 
ARE NORTH OF 31N OVER THE PACIFIC.

REMAINDER OF THE MIDDLE AND UPPER LEVELS IS ANALYZED AS A BROAD 
ANTICYCLONIC CIRCULATION EXCEPT FOR AN UPPER TROUGH SOUTH OF 
MEXICO WITHIN THE AREA FROM 17N100W TO THE ITCZ NEAR 100W TO 
15N86W. THIS TROUGH IS THE SOUTHERN EXTENSION OF A TROUGH OVER 
THE GULF OF MEXICO. IT IS DRY AND CLOUD FREE IN THE MIDDLE AND 
UPPER LEVELS WITHIN THIS TROUGH REGION.  THE ANTICYCLONIC 
CIRCULATION AREA NORTH OF THE ITCZ IS MOIST IN THE UPPER LEVELS 
WITH BROKEN HIGH CLOUDS.

MODERATE SURFACE RIDGE IS NORTH OF THE ITCZ WEST OF 108W. 
REMAINDER OF THE SURFACE MAP IS ANALYZED AS A BROAD TROUGH.

$$
LL