FVXX21 KWBC 030730 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 03 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-648 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. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 03/0645 UTC SHOWS WEATHER CLOUDS COVERING THE AREA. THE LAST REPORT OF ASH WAS FROM RIOBAMBA (SERB) AT 02/2000Z WHICH REPORTED ASH AT FL140 HOWEVER DURING MUCH OF JUNE 2 THE GEOPHYSICAL INSTITUTE OBSERVED ASH TO FL180 NEAR THE VOLCANO SUMMIT. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN THE SUMMIT AND FL180 WOULD MOVE TOWARD THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 03/1330 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