FVXX21 KWBC 070430 VOLCANIC ASH ADVISORY ISSUED: 2001JAN07/0430Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/12 . INFORMATION SOURCE: INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: ASH OBSERVED OVER THE SUMMIT AT 06/1530Z. . DETAILS OF ASH CLOUD: NO ASH IS DETECTED IN SATELLITE IMAGERY THROUGH 07/0345Z. THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH OVER THE VOLCANO AT 06/1530Z TO ABOUT FL230 MOVING TOWARD THE WEST. . TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL230 IS FORECAST TO MOVE TOWARD THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 07/1030Z. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN