FVXX22 KWBC 231430 VOLCANIC ASH ADVISORY ISSUED 1430 UTC 23 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1103 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. THE GEOPHYSICAL INSTITUTE. AVIATION MODEL WIND FORECAST. . ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 23/1415 UTC SHOWS NO ASH ALTHOUGH THERE IS EXTENSIVE CLOUDINESS IN THE AREA. THE LATEST REPORT OF ASH FROM THE GEOPHYSICAL INSTITUTE AT 23/1342 INDICATED ASH AT FL250 MOVING WEST. . TRAJECTORY: ANY ASH AT FL250 WOULD MOVE BETWEEN WEST AND SOUTHWEST AT 10 TO 15 KTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 23/2030 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