FVXX21 KWBC 081530 . VOLCANIC ASH ADVISORY ISSUED 1530 UTC 08 NOV 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-090 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY . ERUPTION DETAILS: THE INSTITUTO GEOFISICO REPORTS A NEARLY CONTINUOUS EMISSION OF STEAM AND ASH NEAR THE SUMMIT AND STRONG SEISMIC ACTIVITY. . DETAILS OF ASH: SATELLITE IMAGERY THRU 1445 UTC DETECTS NO ASH OR STEAM BEING EMITTED FROM THE VOLCANO. EARLIER AT 0830 UTC MULTISPECTRAL IMAGERY DID SHOW A PLUME MOVING EASTWARD FROM THE SUMMIT. ANY ASH REMAINING FROM THIS ERUPTION IS ESTIMATED AT FL300. . TRAJECTORY: ASH UP TO FL300 WILL MOVE EASTWARD AT 10 TO 20 KTS. . 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/) . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED AROUND 08/2130 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . KARST . NNNN