FVXX21 KWBC 310352 VOLCANIC ASH ADVISORY ISSUED 0352 UTC 31 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-892 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: THE FINAL VISIBLE IMAGES OF THE DAY ENDING AT 30/2215 UTC SUGGESTED THE POSSIBILITY OF A LOW LEVEL PLUME MOVING TOWARDS THE WEST. HOWEVER NO ASH COULD BE DISCERNED IN EITHER INFRARED OR MULTISPECTRAL SATELLITE IMAGERY THROUGH 0315 UTC UNDER MOSTLY CLEAR CONDITIONS. . TRAJECTORY: ANY ASH THAT MIGHT EXIST NEAR THE SUMMIT LEVEL WOULD MOVE TOWARD THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 31/1000 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORIES 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