FVXX21 KWBC 062208 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2208 UTC 06 DEC 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-214 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE..MULTISPECTRAL AND INFRARED IMAGERY. UPPER AIR DATA AND REPORTS FROM THE GEOPHYSICAL INSTITUTE. U.S. NATIONAL WEATHER SERVICE MODEL DATA. . ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND STEAM. . DETAILS OF ASH: THUNDERSTORMS HAVE MOVED OVER THE SUMMIT AND IMMEDIATE VICINITY. SATELLITE IMAGERY THROUGH 2115 UTC COULD NOT DETECT ASH THROUGH THE CLOUD COVER. THE PLUME ESTIMATED AT FL600 IN THE LAST ADVISORY HAS DISSIPATED BUT IT IS PRESUMED THAT THE VOLCANO CONTINUES TO EMIT ASH AND STEAM TO FL200. . TRAJECTORY: THE ASH AT FL200 WOULD MOVE TOWARDS THE WEST AT 10 KT. . 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 AND VAFTAD. . EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES AND MINUTES OF A DEGREE. EXAMPLE: 16.70N 62.20W WILL BE 1642N6212W . THE NEXT STATEMENT WILL BE ISSUED BY 06/0400 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN