FVXX21 KWBC 061500 VOLCANIC ASH ADVISORY ISSUED: 2001SEP06/1500Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/220 . INFORMATION SOURCE: GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET. AVIATION MODEL WIND FORECAST. GOES-8 VISIBLE AND MULTISPECTRAL AND INFRARED IMAGERY. . ERUPTION DETAILS: ASH CLOUD OBSERVED AT 1358Z. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE OBSERVED ASH OVER THE VOLCANO TO FL230 AT 1358Z. NO ASH CAN BE SEEN IN GOES-8 IMAGERY DUE TO EXTENSIVE LOW AND MID LEVEL CLOUDS. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN THE SUMMIT AND FL230 WOULD MOVE TOWARD THE WEST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE ONLY MESSAGE FOR THIS EVENT. . 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