VXX22 KWBC 122000 VOLCANIC ASH ADVISORY ISSUED 2000 UTC 12 OCT 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1130 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE AT QUITO. AVIATION MODEL FROM 12/1200 UTC. . ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTS OCCASIONAL ASH EMISSIONS AT THE VOLCANO TO FL220. SATELLITE IMAGERY THROUGH 12/1915 UTC SHOWS LOW AND MID LEVEL CLOUDS OVER THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH AT THIS TIME. . TRAJECTORY: ACCORDING TO THE AVIATION MODEL ANY ASH THAT MAY EXIST UP TO FL220 WOULD MOVE TOWARDS THE WEST AT 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED AT 13/0200 UTC. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/). . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . KARST . NNNN