FVXX22 KWBC 121400 VOLCANIC ASH ADVISORY ISSUED 1400 UTC 12 OCT 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1129 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 12/0600 UTC. . ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTS OCCASIONAL ASH EMISSIONS AT THE VOLCANO TO FL220. NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 12/1315 UTC. SCATTERED LOW AND MID LEVEL CLOUDS COVER THE REGION MAKING ANY DETECTION OF ASH DIFFICULT. . 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 12/2000 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