FVXX21 KWBC 261630 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1630 UTC 26 FEB 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-242 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE REPORT 1800 UTC AVIATION MODEL WINDS FORECAST. . ERUPTION DETAILS: NEARLY CONTINUOUS EMISSION OF GASES WITH OCCASIONAL EMISSION OF ASH. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 26/1545 UTC SHOWS THICK CLOUDS COVERING THE REGION. THE INSTITUTE REPORTS SEISMIC ACTIVITY REMAINS FAIRLY CONSTANT WITH NO REAL BIG SIGNATURES WHICH WOULD INDICATE A STRONGER ASH EMISSION. SURFACE VIEWS OF THE VOLCANO REMAIN OBSCURED BY CLOUDS. WITH ASH EMISSIONS NOT BEING STRONG THE ESTIMATED HEIGHT OF ANY ASH IS BELOW FL190. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL190 SHOULD MOVE TO THE WEST SOUTHWEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 26/2230 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