000
AXPZ20 KNHC 310327
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON JUL 31 2006

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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...TROPICAL WAVES...

TROPICAL WAVE ALONG 93W N OF 4N IS MOVING W ABOUT 15 KT. 
EASTERLIES ALOFT WILL INHIBIT TROPICAL CYCLONE DEVELOPMENT.
STRONG CONVECTION IS LOCATED ALONG THE CENTRAL AMERICA COASTLINE 
W OF 87W CONTINUING OFFSHORE ABOUT 60 NM. SIMILAR ACTIVITY IS 
LOCATED OVER THE GULF OF TEHUANTEPEC.

TROPICAL WAVE ALONG 102W FROM 4N TO 17N IS MOVING W 10 KT WITH A 
1009 MB LOW NEAR 12N102W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION IS LOCATED FROM 10N TO 13N BETWEEN 102W AND 105W. 

TROPICAL WAVE ALONG 118W FROM 7N TO 20N IS MOVING W 12 KT WITH A 
1008 MB LOW NEAR 15N117W. SCATTERED MODERATE TO STRONG 
CONVECTION FROM 13N TO 17N BETWEEN 116W AND 120W. THIS SYSTEM 
MAY DEVELOP INTO A TROPICAL DEPRESSION IN THE NEXT DAY OR TWO.

..ITCZ...

ITCZ AXIS IS CENTERED ALONG...9N83W 11N101W 14N116W 12N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 90 NM OF 
14N99.5W AND FROM 12N TO 14N W OF 137W.

...DISCUSSION...

UPPER LEVEL ANTICYCLONIC CIRCULATION IS CENTERED OVER THE NW 
PART OF THE DISCUSSION AREA NEAR 25N134W. THE CIRCULATION IS 
NEARLY STATIONARY. FURTHER EAST A MIDDLE/UPPER TROUGH HAS ITS 
AXIS ALONG 126W N OF 20N WITH CYCLONIC FLOW LOCATED 5 TO 6 
DEGREES EITHER SIDE OF THE TROUGH. FLOW ALOFT BECOMES 
ANTICYCLONIC EAST OF THE TROUGH INTO MEXICO N OF 18N. THE FLOW 
IS PREDOMINATELY EASTERLY ALOFT OVER THE DEEP TROPICS EAST OF 
110W.

$$
CAB