000
AXPZ20 KNHC 191557
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN AUG 19 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.

...TROPICAL WAVES...

TROPICAL WAVE ALONG 91W N OF 5N IS MOVING W ABOUT 10 KT. MINIMAL 
CONVECTION IS ASSOCIATED WITH THIS FEATURE.

TROPICAL WAVE ALONG 137W FROM 6N TO 16N IS MOVING W 10 TO 15 KT. THE 
WAVE IS VERY WEAK AND MINIMAL CONVECTION IS ASSOCIATED WITH IT.

...ITCZ...

ITCZ AXIS ALONG 9N84W 7N99W 11N109W 15N114W 10N127W 11N137W 11N140W. 
SCATTERED MODERATE CONVECTION IS LOCATED WITHIN 90 NM OF THE AXIS 
BETWEEN 100W AND 110W. ISOLATED MODERATE CONVECTION IS LOCATED 
WITHIN 30 NM OF THE AXIS E OF 94W. 

SCATTERED MODERATE CONVECTION IS LOCATED WITHIN A 45 NM RADIUS OF 
15N96W. 

...DISCUSSION...

N OF 15N...
A WELL-DEFINED MIDDLE/UPPER LEVEL TROUGH IS LOCATED OVER THE NW PART 
OF THE DISCUSSION AREA WITH THE AXIS ALONG 134W N OF ABOUT 20N. 
CYCLONIC FLOW IS LOCATED N OF 20N W OF 128W AND THE FEATURE IS 
DIGGING SOUTHWARD. ANTICYCLONIC FLOW ALOFT COVERS MOST OF THE AREA N 
OF 15N E OF 125W WITH THE RIDGE AXIS LOCATED FROM 27N125W INTO FAR 
NW MEXICO. AT THE SURFACE A 1003 MB SURFACE LOW IS LOCATED NEAR 
21N113W AND IS MOVING NW 10 TO 15 KT. SCATTERED STRONG CONVECTION IS 
LOCATED W OF THE CENTER WITHIN A 90 NM RADIUS OF 20.5N116.5W. WATER 
VAPOR IMAGERY SHOWS STRONG SUBSIDENCE N OF 15N W OF 128W. 

S OF 15N...
SATELLITE CLOUD DRIFT WINDS ALOFT INDICATE EASTERLY FLOW OVER THE 
DEEP TROPICS WITH WINDS IN THE 25 TO 35 KNOT RANGE. STRONG 
SUBSIDENCE IS LOCATED S OF 15N W OF 125W.

$$
CAB