FVXX21 KWBC 100720 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0720 UTC 10 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-549 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR FORECAST FROM THE 10/0000 UTC AVN MODEL. GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: OCCASIONAL STEAM AND ASH EMISSIONS. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTED PROBABLE ASH OVER THE VOLCANO TO FL220 AT 0717 UTC MOVING WEST. MULTI-LAYERED CLOUDS AROUND THE VOLCANO ARE OBSCURING THE DETECTION OF ANY ASH IN SATELLITE IMAGERY THROUGH 0645 UTC. . TRAJECTORY: ANY ASH THAT MAY EXIST TO FL220 WOULD MOVE TOWARDS THE WEST AT 20 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 10/1330 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS 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