FVXX21 KWBC 120630 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0630 UTC 12 FEB 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-179 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 MULTISPECTRAL AND INFRARED IMAGERY. GEOPHYSICAL INSTITUTE IN QUITO. WIND FORECAST FROM THE 12/0000 UTC AVIATION MODEL. . ERUPTION DETAILS: CONTINUOUS ERUPTION OF ASH AND STEAM . DETAILS OF ASH: DUE TO CLOUDS AND NIGHT TIME CONDITIONS NO ASH IS CURRENTLY SEEN IN SATELLITE IMAGERY THROUGH 0545 UTC. THE EVENING INSTITUTE REPORT STATED THAT THE VOLCANO REMAINS SEISMICLY ACTIVE AND IS VENTING AN ALMOST CONTINUOUS STREAM OF STEAM AND ASH. THE LAST FEW VISIBLE SATELLITE IMAGES OF THE DAY DID SHOW HINTS OF A PLUME FROM THE SUMMIT EXTENDING TO THE WEST. BASED ON THIS MOVEMENT AND THE FORECAST WINDS THERE IS NO REASON TO CHANGE CURRENT THINKING THAT THE HEIGHT OF THE ASH IS AROUND FL220. . TRAJECTORY: ASH AROUND FL220 WOULD MOVE TOWARD THE WEST TO WEST-SOUTHWEST AT 20 TO 30 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED AT 12/1230 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