FVXX21 KWBC 180730 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 18 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-327 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL GEOPHYSICAL INSTITUTE REPORT . ERUPTION DETAILS: ALMOST CONTINUOUS EMISSIONS OF GASES AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 18/0645 UTC SHOWS CLOUDS COVERING THE AREA AROUND THE VOLCANO MAKING ANY DETECTION OF ASH DIFFICULT. THERE HAVE BEEN NO FURTHER REPORTS OF ASH EMISSION SINCE YESTERDAY AFTERNOON WHEN ASH WAS REPORTED AROUND FL180. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL180 WILL MOVE TOWARDS THE WEST SOUTHWEST AROUND 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 18/1330 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