FVXX21 KWBC 300130 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0130 UTC 30 NOV 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-185 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND MULTISPECTRAL AND INFRARED IMAGERY...REPORT FROM THE GEOFISICO INSTITUTO. . ERUPTION DETAILS: CONTINUOUS STEAM AND ASH EMISSIONS AND OCCASIONAL EXPLOSIONS OF ASH. . DETAILS OF ASH: DUE TO CLOUDS OVER THE REGION SATELLITE IMAGERY THRU 0045 UTC CAN NO LONGER DETECT THE ASH PLUME SEEN PREVIOUSLY THIS AFTERNOON. THE INSTITUTO REPORTS THE VOLCANO CONTINUES TO EMIT GASES AND ASH BELOW FL250. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BELOW FL250 WOULD MOVE TO THE WEST AT LESS THAN 15 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 AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 30/0730 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN