FVXX21 KWBC 270930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0930 UTC 27 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-365 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY...GUAYAQUIL MWO...AVIATION MODEL FORECAST SOUNDING DATA. . ERUPTION DETAILS: CONTINUOUS DEGASSING WITH OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY AT 0845 UTC SHOWED NO SIGNATURES OF ASH. THE LAST REPORT OF ASH WAS AT 26/1900 UTC WHEN RIOBAMBA INDICATED ASH OVER THE SUMMIT. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL200 SHOULD MOVE TO THE NORTHWEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 27/1530 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. . BROWN . NNNN