FVXX21 KWBC 221925 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1925 UTC 22 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-089 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....22/0000 UTC UPPER AIR DATA FROM TUNGURAHUA....1200 UTC AVIATION MODEL FORECAST SOUNDING DATA... . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM... . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 22/1845 UTC SHOWS NO SIGNS OF ANY ASH OR STEAM. HOWEVER THE LATEST REPORT FROM THE GEOPHYSICAL INSTITUTE INDICATES THAT THERE CONTINUE TO BE EXPLOSIONS INSIDE THE VOLCANO. THROUGHOUT THE DAY THERE HAS BEEN EXTENSIVE CLOUDINESS OBSTRUCTING THE VIEW OF THE SUMMIT AND THIS WOULD MAKE ANY ASH DETECTION DIFFICULT. IF ANY ASH AND STEAM EMISSIONS ARE OCCURRING THEY ARE LIKELY NEAR-SUMMIT TO PERHAPS AS HIGH AS FL200. . TRAJECTORY: ANY ASH AND STEAM FROM THE SUMMIT TO FL200 SHOULD MOVE TO THE WEST-SOUTHWEST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 23/0130 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. . ORRISON . NNNN