000
AXPZ20 KNHC 251531
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN NOV 25 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 IS ALONG THE LINE...6N77W 9N105W 
9N140W. SCATTERED MODERATE CONVECTION IS WITHIN 60 NM OF THE 
FOLLOWING POINTS 10N105W AND 10N112.5W AND 7.5N128.5W AND 
14.4N137.8W.

...DISCUSSION...
UPPER LEVELS...
STRONG SHORTWAVE OVER NORTHERN MEXICO CONTINUE TO MOVE EAST AWAY 
FROM THE AREA. DRY AIR COVERS MOST OF MEXICO EAST OF THE GULF OF 
CALIFORNIA. 

ANOTHER STRONG SHORTWAVE IS OVER THE NORTHWEST PART OF THE AREA 
NORTHWEST OF LINE 32N127W 25N132W 24N140W.  THE AREA IS ALSO DRY 
AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS. THIS TROUGH IS 
FORECAST TO SLOW AND REMAIN OVER THE NORTHERN PART OF THE AREA 
FOR THE NEXT SEVERAL DAYS. 

THE RIDGE BETWEEN THE ABOVE TROUGHS IS DIFLUENT ALOFT WITH A 
BROAD AREA OF OVERCAST MULTI LEVEL CLOUDS COVERING AN AREA 300 
NM EITHER SIDE OF A LINE 32N122W 25N127W 18N140W. THIS AREA IS 
MOVING EAST AND IS BEGINNING TO AFFECT THE NORTH BAJA CALIFORNIA 
PENINSULA.

WEAK RIDGE COVERS THE REMAINDER OF THE AREA. DRY AIR IN THE 
MIDDLE AND UPPER LEVELS IS EAST OF A LINE 20N105W TO THE ITCZ 
NEAR 120W. AN AREA OF CONVECTION IS EMBEDDED IN THE REGION  
WITHIN 120 NM OF THE POINT 14.5N103W.

SURFACE...
WEAK RIDGE IS NORTH OF 15N WEST OF 118W. REMAINDER OF THE AREA 
IS COVERED BY WEAK TROUGH.
 
GAP WINDS IN GULF OF PAPAGAYO REGION OF NEAR 20 KT WILL CONTINUE 
THROUGH 12 HOURS THEN DIMINISH.

GAP WINDS WILL BEGIN IN THE GULF OF TEHUANTEPEC REGION IN ABOUT 
30 HOURS.

$$
LL