FVXX21 KWBC 231930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1930 UTC 23 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-093 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY...23/0000 UTC UPPER AIR DATA FROM THE GEOPHYSICAL INSTITUTE...GUAYAQUIL MWO SIGMET REPORT... . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM... . DETAILS OF ASH: SATELLITE IMAGERY AS OF 23/1745 UTC DOES NOT INDICATE ANY ASH OR STEAM. THERE CONTINUES TO BE AN ABUNDANCE OF CLOUDINESS FROM BROKEN AREAS OF SHOWERS AND THUNDERSTORMS WHICH IS HEAVILY OBSCURING THE SUMMIT. HOWEVER THE LATEST REPORTS FROM THE GUAYAQUIL MWO INDICATE THAT THERE IS SOME ASH BEING EMITTED FROM THE SUMMIT. A SURFACE REPORT DID INDICATE ASH OVER THE SUMMIT AND A MOVEMENT TO THE WEST. AT THIS TIME THE CURRENT ASH EMISSIONS ARE LIKELY TO BE NEAR-SUMMIT AND REACH PERHAPS AS HIGH AS FL200. . TRAJECTORY: ANY ASH AND STEAM FROM THE SUMMIT TO FL200 SHOULD MOVE TO THE WEST AT 20 TO 25 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 24/0130 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