FVXX21 KWBC 131115 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1115 UTC 13 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-050 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY... REPORTS FROM THE GEOPHYSICAL INSTITUTE...13/0000 UTC AVIATION MODEL SOUNDING DATA... . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM...POSSIBLY SOME STRONGER EXPLOSIONS... . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 13/0845 UTC DOES NOT INDICATE ANY ASH OR STEAM. HOWEVER THERE HAVE BEEN SOME OCCASIONAL EMISSIONS OF ASH AND STEAM OVER THE LAST 24 HOURS. ADDITIONAL EMISSIONS OF ASH AND STEAM MAY OCCUR AT ANY TIME ACCORDING TO THE GEOPHYSICAL INSTITUTE. THE LATEST EMISSIONS PRODUCED ASH AND STEAM TO AN ESTIMATED FL250. . TRAJECTORY: ASH AND STEAM FROM THE SUMMIT TO FL250 SHOULD MOVE TO THE SOUTH-SOUTHWEST AT 10 TO 20 KNOTS... . 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/) . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED AROUND 13/1730 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . ORRISON . NNNN