000
AXPZ20 KNHC 062118
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SUN MAY 06 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...ITCZ...
INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...6N77W 9N105W 
11N110W 9N125W CONTINUE 7N125W 6N140W.
SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 75 NM OF THE 
FOLLOWING POINTS 5.8N80W AND 7N85.6W AND 7.5N91.3W AND 7.6N97.9W 
AND 8.6N104.5W AND 5.7N128.9W AND 6.2N133.6W.
SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 120 NM OF THE 
POINT 10.4N111.7W. SCATTERED MODERATE TO STRONG CONVECTION IS 
WITHIN 150 NM OF THE POINT 9.1N121.5W. SCATTERED MODERATE TO 
STRONG CONVECTION IS WITHIN 90 NM OF THE POINT 6.2N137.8W.

...DISCUSSION...
MIDDLE AND UPPER LEVEL RIDGE IS NORTH OF 25N WEST OF 128W. THE 
AREA IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS WITH 
BROKEN TO OVERCAST STRATOCUMULUS IN THE LOWER LEVELS.

REMAINDER OF THE AREA NORTH OF 20N IS ANALYZED AS A MIDDLE AND 
UPPER LEVEL TROUGH WITH THE STRONGEST PART OF THE SYSTEM NORTH 
OF 24N EAST OF 123W. THIS AREA IS ALSO DRY AND CLOUD FREE IN THE 
MIDDLE AND UPPER LEVELS. IN THE LOWER LEVELS CLEAR SKIES ARE 
NORTH OF 28N EAST OF 126W. ELSEWHERE BROKEN TO OVERCAST 
STRATOCUMULUS ARE OBSERVED.

REMAINDER OF THE MIDDLE AND UPPER LEVELS ARE DOMINATED BY WEAK 
ANTICYCLONIC FLOW.  THE ITCZ IS ACTIVE WITH NUMEROUS AREAS OF 
CONVECTION. UPPER LEVEL MOISTURE FROM THIS CONVECTION IS 
ADVECTING OVER THE SOUTH HALF OF MEXICO WITH ONLY THIN SCATTERED 
TO BROKEN HIGH CLOUDS.

AT THE SURFACE A MODERATE RIDGE IS NORTH OF 15N WEST OF 120W 
WITH A WEAK RIDGE ELSEWHERE NORTH OF THE ITCZ WEST OF 106W.  
ELSEWHERE BROAD TROUGH IS ANALYZED.

$$
LL