000
AXPZ20 KNHC 021551
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU MAR 01 2007

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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 5N78W 9N87W 5N100W 5N115W 4N125W 
8N134W 5N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED WITHIN A 60 NM RADIUS OF 4N90W.
 
...DISCUSSION...

A STRONG MIDDLE/UPPER LEVEL TROUGH JUST W OF THE DISCUSSION AREA 
HAS ITS AXIS ALONG 145W N OF 10N...MOVING E ABOUT 10 KT. 
CYCLONIC FLOW IS LOCATED E OF THE AXIS TO ABOUT 130W WITH STRONG 
SOUTHWESTERLY WINDS ALOFT IN THE 90 TO 100 KNOT RANGE FROM 15N 
TO 28N. THE FLOW ALOFT BECOMES MORE ZONAL N OF 20N E OF 130W 
INTO MEXICO WITH CLOUD DRIFT WINDS IN THIS AREA BETWEEN 70 AND 
80 KNOTS. 

BROAD RIDGING AT THE MIDDLE AND UPPER LEVELS COVERS THE DEEP 
TROPICS S OF 20N E OF ABOUT 120W. WATER VAPOR IMAGERY INDICATES 
STRONG SUBSIDENCE OVER THIS AREA.

$$
CAB