FVXX20 KWBC 172155 VOLCANIC ASH ADVISORY ISSUED: 2001JUN17/2155Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/79 . INFORMATION SOURCE: GEOPHYSICAL INSTITUTE...GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET. AVN MODEL WIND FORECAST. . ERUPTION DETAILS: THE GEOPHYSICAL INSTITUTE REPORTED AND ERUPTION AT 17/2100 UTC. WITH ASH MOVING AT LOWER LEVELS TO THE WEST AND AT HIGHER LEVELS TO THE EAST. . DETAILS OF ASH CLOUD: ASH IS NOT CURRENTLY SEEN IN IMAGERY AVAILABLE THROUGH 17/2045Z. AS SOON AS MORE CURRENT IMAGERY IS RECEIVED WE WILL UPDATE THE ADVISORY. FOR ASH TO MOVE EAST AT HIGHER LEVELS THE INITIAL ESTIMATED HEIGHT FROM WIND MODEL DATA WOULD BE AT LEAST TO FL340. . TRAJECTORY: ANY ASH ABOVE FL320 WILL MOVE SOUTHEAST TO EAST AROUND 20 TO 30 KNOTS AND BELOW FL320 WILL MOVE SOUTH WESTERLY AROUND 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED AROUND 2230 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