FVXX20 KWBC 150558 VOLCANIC ASH ADVISORY ISSUED: 2001AUG15/0558Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/173 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL SIGMET. GEOPHYSICAL INSTITUTE IN QUITO. AVIATION MODEL UPPER WIND FORECAST. . ERUPTION DETAILS: CONTINUOUS ERUPTION SINCE 06/1203Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 0445Z SHOWED AN ASH PLUME EXTENDING FROM THE SUMMIT TO 0206S7915W OR APPROXIMATELY 114 KM (62 NMI) TO THE SOUTHWEST OF THE VOLCANO. THE PLUME WAS UP TO 36 KM (19 NMI) WIDE AND ESTIMATED TO BE UP TO FL280 BASED ON AN OBSERVATION TAKEN BY THE GEOPHYSICAL INSTITUTE AT 0142Z. . TRAJECTORY: TOWARDS THE SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 15/1200Z. . 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. . TURK . NNNN