000
AXPZ20 KNHC 251555
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE SEP 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 
1515 UTC.
  
...TROPICAL WAVES...

TROPICAL WAVE ALONG 92W N OF 7N INTO WESTERN GUATEMALA IS MOVING 
W 10 TO 15 KT. THE WAVE IS VERY WEAK AND MINIMAL CONVECTION IS 
ASSOCIATED WITH IT.

TROPICAL WAVE ALONG 108W FROM 5N TO 15N IS MOVING W 10 KT. A 
WEAK 1009 MB LOW IS ATTACHED TO THE WAVE NEAR 12N. NO 
SIGNIFICANT CONVECTION IS ASSOCIATED WITH THIS FEATURE. 

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 9N85W 11N92W 12N102W 12N110W 13N122W 
13N130W 10N140W. SCATTERED MODERATE TO STRONG CONVECTION IS 
LOCATED FROM 5N TO 7N E OF 79W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION IS LOCATED WITHIN 150 NM N OF THE AXIS BETWEEN 
95W AND 100W. SCATTERED MODERATE CONVECTION IS LOCATED WITHIN 
120 NM S OF THE AXIS BETWEEN 110W AND 118W.

...DISCUSSION...

W OF 100W...
A MIDDLE/UPPER LEVEL TROUGH COVERS THE AREA N OF 20N W OF 125W 
WITH THE AXIS ALONG 131W. A JET EXTENDS FROM NEAR THE BASE OF 
THE TROUGH AT 15N130W TO 15N123W ACROSS THE N CENTRAL BAJA 
CALIFORNIA PENINSULA INTO NW MEXICO. SATELLITE CLOUD DRIFT WINDS 
ARE MEASURING 50 TO 60 KNOTS ALONG THE JET AXIS AND ARE 
STRONGEST FROM 10N TO 16N. ANTICYCLONIC FLOW ALOFT COVERS THE 
AREA BETWEEN ABOUT 108W AND 122W FROM 15N TO 25N. WATER VAPOR 
IMAGERY INDICATES CYCLONIC TURNING ALOFT ALONG THE MEXICAN COAST 
FROM 16N TO 20N CONTINUING OFFSHORE ABOUT 300 NAUTICAL MILES. A 
SURFACE TROUGH ASSOCIATED WITH THE REMNANTS OF TROPICAL 
DEPRESSION THIRTEEN EXTENDS FROM 15N134W TO 22N133W.

E OF 100W...
THE FLOW AT THE MIDDLE/UPPER LEVELS ARE MOSTLY EASTERLY TO 
NORTHEASTERLY OVER THE DEEP TROPICS. CLOUD DRIFT WINDS ARE IN 
THE 25 TO 35 KNOT RANGE IN THIS AREA. 

$$
CAB