FVXX21 KWBC 151730 VOLCANIC ASH ADVISORY ISSUED: 2001SEP15/1730Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/243 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. SIX HOUR WIND FORECAST FROM THE 15/0600Z AVIATION MODEL. THE GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: ASH FIRST REPORTED AT 13/2206Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 15/1645Z SHOWS EXTENSIVE CLOUDINESS AROUND THE VOLCANO THUS MAKING DETECTION OF ASH DIFFICULT. THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH AT 15/0802Z MOVING WEST. . TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL250 WILL MOVE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 15/2330Z. . 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