FVXX21 KWBC 280100 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0100 UTC 28 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-111 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. GEOPHYSICAL INSTITUTE IN QUITO. INFORMATION FROM UNITED AIRLINES. GUAYAQUIL MWO. 6 HOUR WIND FORECAST FROM THE 27/1800 UTC AVIATION MODEL. . ERUPTION DETAILS: ERUPTION OCCURRED AT FROM 27/1721 TO 27/1733 UTC. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 27/2345 UTC SHOWS CONSIDERABLE CLOUDINESS AROUND THE VOLCANO. THESE CLOUDS ARE MAKING DETECTION OF PAST OR PRESENT ASH IMPOSSIBLE. . TRAJECTORY: ANY REMAINING ASH WOULD MOVE SOUTHWEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 28/0700 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. . WALTER . NNNN