FVXX21 KWBC 271830 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1830 UTC 27 FEB 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-247 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. AVIATION MODEL WINDS FORECAST. GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET. . ERUPTION DETAILS: NEARLY CONTINUOUS EMISSION OF GASES AND ASH. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 27/1745 UTC SHOWS SIGNIFICANT CLOUD COVER AROUND THE VOLCANO MAKING ANY ASH DETECTION DIFFICULT. THE GEOPHYSICAL INSTITUTE REPORT ESTIMATES THE ASH TO FL270 MOVING WESTERLY. . TRAJECTORY: ASH BELOW FL270 WILL MOVE WESTERLY AROUND 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 28/0130 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