FVXX21 KWBC 090300 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0300 UTC 09 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-419 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY...GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE AS OF 0240 UTC REPORTS AN INCREASE IN TREMOR ACTIVITY ON THE MOUNTAIN AND ASH ESTIMATED TO BE BETWEEN 3 AND 5 KM ABOVE THE SUMMIT MOVING ALMOST DUE WEST. THIS WOULD PLACE THE ASH BETWEEN FL260 AND FL320. SATELLITE IMAGERY THOUGH 0215 UTC SHOWS A VERY SMALL AREA OF POSSIBLE ASH VISIBLE FOR ONE IMAGE (0145 UTC) EXTENDING 18 KM TO THE WEST SOUTHWEST OF THE VOLCANO. A HOT SPOT IS VISIBLE AND HAS BEEN VISIBLE ON MULTISPECTRAL IMAGERY FOR THE PAST FEW HOURS. . TRAJECTORY: ASH FROM THE SUMMIT TO FL240 SHOULD MOVE TO THE WEST AND NORTHWEST AT 10 TO 20 KNOTS. ASH FROM FL240 TO FL320 SHOULD MOVE TO THE SOUTHWEST AT 15 TO 25 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 09/0900 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. . NNNN