FVXX21 KWBC 110300 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0300 UTC 11 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-427 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY...GEOPHYSICAL INSTITUTE... NATIONAL WEATHER SERVICE NUMERICAL MODELS. . ERUPTION DETAILS: ASH AND STEAM EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 0215 UTC SHOWS AN OCCASIONAL HOT SPOT IN NEAR INFRARED IMAGERY. LOW AND MID LEVEL CLOUDS COVER THE REGION AROUND THE VOLCANO MAKING ANY DETECTION OF ASH OR STEAM DIFFICULT. ANY ASH EMISSIONS ARE BELIEVED AT THIS TIME TO BE NEAR-SUMMIT WITH A HEIGHT AS HIGH AS FL200. . TRAJECTORY: ANY ASH AND STEAM FROM THE SUMMIT TO FL200 SHOULD MOVE TO THE WEST-NORTHWEST AT 15 TO 20 KNOTS. OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 11/0900 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. . KARST . NNNN