FVXX20 KWBC 232000 VOLCANIC ASH ADVISORY ISSUED: 2001AUG23/2000Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/211 . INFORMATION SOURCE: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. GEOPHYSICAL INSTITUTE. SIX HOUR WIND FORECAST FROM THE 23/0600Z AVIATION MODEL. . ERUPTION DETAILS: NEARLY CONTINUOUS ERUPTION SINCE 06/1203Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 23/1915Z DOES NOT INDICATE ANY VOLCANIC ASH. IT HAS BEEN OVER 24 HOURS SINCE ASH WAS OBSERVED BY THE GEOPHYSICAL INSTITUTE. HOWEVER, THE VOLCANO REMAINS UNSTABLE AND MAY ERUPT AT ANY TIME. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL200 WILL MOVE TOWARDS THE SOUTH OR SOUTHWEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THIS WILL BE THE LAST ADVISORY BUT WE WILL MONITOR THE VOLCANO CAREFULLY AND ISSUE ANOTHER BULLETIN IF AN ERUPTION OCCURS. . 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. . KARST . NNNN