000
AXPZ20 KNHC 211515
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC MON MAY 21 2007

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

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ...

INTERTROPICAL CONVERGENCE ZONE AXIS IS ALONG THE LINE...7N78W 
7N105W 7N140W. SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 
90 NM EITHER SIDE OF THE LINE 8N80.4W 3N77.5W. SCATTERED 
MODERATE TO STRONG CONVECTION IS WITHIN 75 NM OF THE LINE 
13.5N89.8W 10N89.5W 7.3N84W. SCATTERED MODERATE TO STRONG 
CONVECTION IS WITHIN 120 NM OF THE POINT 6.5N104.3W. SCATTERED 
MODERATE CONVECTION IS WITHIN 60 NM OF THE POINT 6.4N109.8W.
SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 90 NM OF THE 
POINT 6.7N122.3W. SCATTERED MODERATE TO STRONG CONVECTION IS 
WITHIN THE AREA FROM 6.4N TO 8.5N FROM 125W TO 132W.

...DISCUSSION...

MODERATE MIDDLE AND UPPER LEVEL SHORTWAVE IS NORTH OF 20N EAST 
OF 123W. LITTLE WEATHER IS ASSOCIATED WITH THE SYSTEM AND THE 
ATMOSPHERE IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS 
WITH MOSTLY OVERCAST STRATOCUMULUS IN THE LOWER LEVELS. 

WEAK MOSTLY MIDDLE LEVEL RIDGE IS NORTH OF 20N WEST OF 123W.  
LITTLE WEATHER IS ASSOCIATED WITH THE SYSTEM AND THE ATMOSPHERE 
IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS WITH MOSTLY 
BROKEN STRATOCUMULUS IN THE LOWER LEVELS. 

THE REMAINDER OF THE AREA IS COVERED BY WEAK RIDGE.

THE AREA EAST OF A LINE FROM 20N100W TO THE ITCZ NEAR 115W IS 
DIFLUENT ALOFT SUPPORTING WIDESPREAD CONVECTION AND LARGE AREA 
OF MULTI LEVEL CLOUDS.

AT THE SURFACE MODERATE RIDGE IS NORTH OF 10N WEST OF 112W.  
ELSEWHERE BROAD TROUGH IS ANALYZED AT THEW SURFACE.

$$
LL