FVXX21 KWBC 211430 VOLCANIC ASH ADVISORY ISSUED 1430 UTC 21 OCT 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1165 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. THE METEOROLOGICAL WATCH OFFICE IN GUAYAQUIL. 21/1200 UTC FORECAST UPPER WINDS FROM THE 21/0000 UTC AVIATION MODEL. 21/1200 UTC GOES-8 DERIVED WINDS. . ERUPTION DETAILS: THE LAST ASH EMISSION REPORTED WAS AT 20/1940 UTC. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1415 UTC DOES NOT INDICATE THE PRESENCE OF ASH. THE MET WATCH OFFICE HAS NOT RECEIVED ANY REPORTS OF ASH FROM THE GEOPHYSICAL INSTITUTE SINCE THE LAST REPORT. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR SUMMIT LEVEL SHOULD MOVE WEST SOUTHWEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE LAST ADVISORY ISSUED ON THIS EVENT. . 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. . HUGHES . NNNN