FVXX21 KWBC 202200 VOLCANIC ASH ADVISORY ISSUED: 2001SEP20/2200 VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/265 . INFORMATION SOURCE: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. TWELVE HOUR WIND FORECAST FROM THE 20/1200Z AVIATION MODEL. . ERUPTION DETAILS: ASH REPORTED OVER VOLCANO AT 20/1544Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 20/2115Z SHOWS A SLIGHT INDICATION OF ASH EXTENDING JUST TO THE WEST-SOUTHWEST OF THE SUMMIT. THIS AGREES WITH THE GEOPHYSICAL INSTITUTE REPORT OF ASH OVER THE SUMMIT AT 20/2029Z TO FL200 MOVING WEST-SOUTHWEST. . TRAJECTORY: ASH AT FL200 WILL MOVE WEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 21/0400Z. . 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. . WALTER . NNNN