FVXX20 KWBC 221430 VOLCANIC ASH ADVISORY ISSUED: 2001AUG22/1430Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/206 . INFORMATION SOURCE: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: NEARLY CONTINUOUS ERUPTION SINCE 06/1203Z. . DETAILS OF ASH CLOUD: ALTHOUGH NO ASH HAS BEEN OBSERVED DUE TO EXTENSIVE CLOUDINESS OVER THE PAST 6 HOURS ENDING AT 22/1415Z THE GEOPHYSICAL INSTITUTE INDICATED THAT THE VOLCANO CONTINUES TO EMIT ASH COLUMNS TO BETWEEN FL200 AND FL250. . TRAJECTORY:. ASH HAS BEEN OBSERVED MOVING TOWARDS THE NORTHWEST. SPEED IS ESTIMATED AT 5 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 22/2030Z. . INTERNET URLS... MESSAGE LISTSERV WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML MESSAGES GRAPHICS AND IMAGERY WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWERCASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN