FVXX21 KWBC 300400 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0400 UTC 30 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-630 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. 12 HOUR WIND FORECAST FROM THE 29/1800 AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 30/0315 UTC SHOWS NO CURRENT PLUME DUE TO EXTENSIVE CLOUD COVER IN THE AREA AROUND THE VOLCANO. THE LATEST GEOPHYSICAL INSTITUTE REPORT AT 30/00058 UTC REPORTED ASH OVER THE VOLCANO. . TRAJECTORY: ANY ASH BETWEEN THE SUMMIT AND FL270 WOULD MOVE TO THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 30/1000 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