000
AXPZ20 KNHC 241521
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU MAY 24 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...9N83W 
9N105W 8N140W. SCATTERED MODERATE WITH ISOLATED STRONG 
CONVECTION IS WITHIN 60 NM OF THE POINT 8.7N89.3W. SCATTERED 
MODERATE TO STRONG CONVECTION IS WITHIN 100 NM OF THE POINT 
11.5N89.8W. SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 90 
NM OF THE POINT 7.9N95.6W. SCATTERED MODERATE WITH ISOLATED 
STRONG CONVECTION IS WITHIN 60 NM OF THE POINT 6.8N100.4W. 
SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION IS WITHIN 75 
NM OF THE POINT 8.2N124.7W.

...DISCUSSION...
UPPER LEVEL TROUGH IS NORTH OF A LINE 25N100W 17N140W.  THE 
ATMOSPHERE IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS 
NORTH OF THIS LINE TO 30N AND CLOUD FREE IN THE MIDDLE AND UPPER 
LEVEL NORTH OF 30N. 

MIDDLE LEVEL SHORTWAVE IS NORTH OF 21N EAST OF 125W.  THIS 
SYSTEM IS EXPECTED TO REMAIN THROUGH 24 HOURS THEN DRIFT EAST. 
LITTLE WEATHER IS ASSOCIATED WITH EITHER TROUGH. 

OVERCAST STRATOCUMULUS IS OBSERVED NORTH OF 20N FROM 114W TO 
130W WITH BROKEN STRATOCUMULUS WEST OF 125W.

REMAINDER OF MIDDLE AND UPPER LEVELS IS UNDER WEAK ANTICYCLONIC 
FLOW.

CONVECTION WITHIN THE ITCZ IS SOMEWHAT ENHANCED EAST OF 115W 
WITH UPPER LEVEL MOISTURE AND MULTI LEVEL CLOUDS EAST OF A LINE 
FROM 20N105W TO THE ITCZ NEAR 120W.

WEAK RIDGE IS NORTH OF THE ITCZ WEST OF 110W.  TROUGH IS ALONG 
107W FROM 7N TO 15N MOVING WEST 15 KT. ELSEWHERE BROAD WEAK 
TROUGH IS OBSERVED.

$$
LL