FVXX21 KWBC 030200 VOLCANIC ASH ADVISORY ISSUED 0200 UTC 03 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1030 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE. SIGMETS FROM GUAYAQUIL METEOROLOGICAL WATCH OFFICE. . ERUPTION DETAILS: GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 03/0115 UTC SHOWS LOW AND MID LEVEL CLOUDINESS OVER THE VOLCANO MAKING IT DIFFICULT TO DETECT VOLCANIC ASH. THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE VOLCANO AT 02/1633 UTC AND ANOTHER REPORT AT 02/1348 UTC REPORTED ASH TO FL220 MOVING TO THE SOUTHWEST. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN THE SUMMIT AND FL220 WOULD MOVE TO THE SOUTHWEST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 03/0800 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. . KARST . NNNN