FVXX21 KWBC 121145 VOLCANIC ASH ADVISORY ISSUED 1145 UTC 12 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1068 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE IN QUITO. . ERUPTION DETAILS: STEAM AND ASH EMISSIONS. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTS VOLCANIC ASH OVER THE VOLCANO TO FL300 AT 12/1045 UTC. CLOUDS COVER THE VOLCANO IN SATELLITE IMAGERY THROUGH 12/1115 UTC MAKING IT DIFFICULT TO DETECT ANY ASH. . TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL300 WOULD MOVE TOWARDS THE WEST AT 20 TO 25 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 12/1730 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