FVXX21 KWBC 010930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0930 UTC 01 JUNE 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-640 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. TWELVE HOUR WIND FORECAST FROM THE 01/0000 UTC AVIATION MODEL. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS WITH SEVERAL EXPLOSIONS. . DETAILS OF ASH: LATEST SATELLITE IMAGERY THROUGH 01/0845 UTC SHOWS BROKEN MULTI-LAYERED CLOUDS OVER THE AREA. THIS MAKES IT DIFFICULT TO DETECT ANY ASH. THE MOST RECENT INFORMATION (0338 UTC) FROM GUAYAQUIL PLACES ASH OVER THE VOLCANO WITH NO HEIGHT SPECIFIED. THE MOST RECENT ASH HEIGHT REPORTED WAS UP TO FL300. . TRAJECTORY: ASH FROM THE SUMMIT TO FL300 WOULD MOVE TOWARD THE WEST AT 15-20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 01/1530 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