FVXX21 KWBC 130100 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0100 UTC 13 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-560 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVN MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: IN THE LAST VISIBLE IMAGERY OF THE DAY AT 12/2215Z A VERY NARROW FAINT PLUME COULD BE SEEN MOVING WEST NORTHWEST (288 DEGREES) FROM THE SUMMIT AND EXTENDED OUT AROUND 30 KM (16 NMI) AND WAS ROUGHLY 5 KM (3 NMI) WIDE. IN CURRENT INFRARED AND MULTISPECTRAL IMAGERY THROUGH 13/0015Z THERE WAS NO DETECTION OF THE PLUME. THE LAST GEOPHYSICAL INSTITUTE REPORT ESTIMATED THE PLUME HEIGHT AT AROUND FL200. . TRAJECTORY: ANY ASH THAT MAY EXIST FROM THE SUMMIT TO FL200 WOULD MOVE TOWARD THE WEST NORTHWEST AROUND 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 13/0700 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