FVXX21 KWBC 150230 VOLCANIC ASH ADVISORY ISSUED 0230 UTC 15 AUG 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-953 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. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: GASES AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 15/0145 UTC POSSIBLY DUE TO THE EXTENSIVE LOW LEVEL WEATHER CLOUDS IN THE AREA. ON THE MORNING OF AUGUST 14 THE GEOPHYSICAL INSTITUTE REPORTED THREE MODERATE EXPLOSIONS PRODUCING ASH TO ABOUT FL200. . TRAJECTORY: ANY ASH THAT MIGHT EXIST FROM THE SUMMIT TO FL200 WOULD MOVE TOWARD THE WEST AT ABOUT 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 15/0830 UTC. . REAL TIME SATELLITE IMAGERY AND 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. . NNNN