000
AXPZ20 KNHC 270307
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI OCT 27 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 
0230 UTC.

...SPECIAL FEATURE...
.TROPICAL DEPRESSION EIGHTEEN E NEAR 16.9N 105.6W 1007 MB AT 
0300 UTC OCT 27 MOVING W OR 270 DEG AT 7 KT. MAXIMUM SUSTAINED 
WINDS 30 KT GUSTS 40 KT. FORECAST/ADVISORIES ON TROPICAL 
DEPRESSION EIGHTEEN-E ARE ISSUED UNDER WMO HEADER WTPZ23 KNHC 
AND UNDER AWIPS HEADER MIATCMEP3. 

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 7N78W 10N110W 9N123W 10N140W. 
CONVECTION...SCATTERED MODERATE ISOLATED STRONG 70NM WIDE 78W TO 
81W. SCATTERED STRONG 90NM WIDE 123W TO 126W.


...DISCUSSION...
BROAD CYCLONIC CIRCULATION AT UPPER LEVELS NEAR 27N138W IS 
DRIFTING W WITH A TROUGH THROUGH 32N124W. TROPICAL MOISTURE IS 
WITHIN 200 NM OF A LINE FROM 18N140W TO CENTRAL BAJA CALIFORNIA 
AND IS MOVING RAPIDLY NE INTO NORTHERN MEXICO AND THE SW U. S. 

A LARGE RIDGE EXTENDS FROM NEAR 20N105W TO 8N130W. THE RIDGE IS 
EMBEDDED IN A LARGE AREA OF DRY AIR.

AT THE SURFACE A TROPICAL WAVE NEAR 138W IS MOVING W 10-15 KT 
WITH LITTLE SIGNIFICANT CONVECTION. A RIDGE EXTENDS FROM 32N 
130W TO 20N120W.

$$
FETS