FVXX20 KWBC 210530 VOLCANIC ASH ADVISORY ISSUED: 2001AUG21/0530Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/200 . INFORMATION SOURCE: GOES-8 ..INFRARED..MULTISPECTRAL IMAGERY. 06 HOUR WIND FORECAST FROM THE 21/0000Z AVIATION MODEL. . ERUPTION DETAILS: NEARLY CONTINUOUS ERUPTION SINCE 06/1203Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 0415Z SHOW DOES NOT SHOW ANY ASH. ASH WAS LAST OBSERVED IN THE 0115Z IMAGE IN THE VICINITY OF THE SUMMIT MOVING SLOWLY WESTWARD. . TRAJECTORY: ANY REMAINING ASH AT FL250 WOULD MOVE TOWARDS THE SOUTH SOUTHEAST AT 10 TO 15 KTS. ASH BELOW FL200 WOULD MOVE TOWARD THE WEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 21/1130Z. . 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. . NNNN