000
AXPZ20 KNHC 272059
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2045 UTC.

...SPECIAL FEATURES...
.TROPICAL DEPRESSION EIGHTEEN E NEAR 15.6N 105.8W 1009 MB AT 
2100 UTC OCT 27 MOVING WSW OR 240 DEG AT 6 KT. MAXIMUM SUSTAINED 
WINDS 25 KT GUSTS 35 KT. ELSEWHERE WITHIN 150 NM OF CENTER WINDS 
20 KT SEAS TO 8 FT. SCATTERED MODERATE CONVECTION IS WITHIN 200 
NM NW QUADRANT. SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO 
HEADERS MIATCMEP3/WTPZ23 KNHC FOR MORE DETAILS.

A GALE WARNING IS EXPECTED OVER THE GULF OF TEHUANTEPEC WITH N 
WINDS 30 TO 40 KT AND SEAS BUILDING TO 11 FT. 

...ITCZ...
ITCZ AXIS IS CENTERED ALONG 9N80W 8N100W 10N115W 7N125W 9N140W. 
SCATTERED MODERATE FROM 5N TO 7N BETWEEN 78W AND 85W. SCATTERED 
MODERATE WITHIN 75 NM OF THE AXIS BETWEEN 88W AND 91W. SCATTERED 
MODERATE FROM 13N TO 16N BETWEEN 132W AND 137W.

...DISCUSSION...

A  STRONG SOUTHWESTERLY JET IS WITHIN 200 NM OF A LINE 20N140W
28N125W AND 30N110W. EXTENSIVE TROPICAL MOISTURE IS BEING 
ADVECTED INTO MEXICO AND THE SW US WITH THE JET. AN UPPER RIDGE 
EXTENDS FROM 20N105W TO 10N140W. THE RIDGE IS IN A LARGE AREA OF 
DRY AIR WHICH DOMINATES THE REST OF THE AREA.
AT THE LOW LEVELS A RIDGE EXTENDS FROM 30N134W TO 20N120W. 


$$
FETORRES