FVXX21 KWBC 042040 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2040 UTC 04 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-655 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: THE VOLCANO AND SURROUNDING VICINITY WERE OBSCURED BY CLOUDS IN SATELLITE IMAGERY THROUGH 2015 UTC. A LOW LEVEL PLUME SEEN EARLIER TODAY HAD BEEN ESTIMATED TO BE NEAR FL180. . TRAJECTORY: ANY ASH THAT MIGHT EXIST BETWEEN THE SUMMIT AND FL180 WOULD MOVE TOWARDS THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 05/0230 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. . TURK . NNNN