(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20210929/0313Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:green (6) Source:KVERT (7) Notice Number:2021-118 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:The activity of the volcano is low. A strong wind raises ash from the slope of the volcano. Satellite and video data by KVERT showed a resuspended ash plume extended to the east of the volcano.\n\nResuspended ash plumes can be observed at altitudes of 9,800-16,400 ft (3-5 km) a.s.l. Ongoing activity could affect low-flying aircrafts. (12) Volcanic cloud height:3000-4000 m (9840-13120 ft) AMSL Time and method of ash plume/cloud height determination: 20210929/0310Z – Video data(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 75 km (47 mi)\nDirection of drift of ash plume/cloud of the volcano: E / azimuth 91 deg \nTime and method of ash plume/cloud determination: 20210929/0145Z – MODIS AQUA (31m32)(14) Remarks:(15) Contacts: Dmitry V. Melnikov, IVS FEB RAS\ndvm@kscnet.ru \n\nDuty scientist: +79622825253 (16) Next Notice:A new VONA will be issued if conditions change significantly or the colour code is changed. VONAs are posted at http://www.kscnet.ru/ivs/kvert/.\n\nIn Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FEB RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users.