(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20201118/2141Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2020-213 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:15580 ft (4750 m)(11) Volcanic Activity Summary:The emission of ash from the volcano continues. A big ash cloud 65x70 km in size is observing over Klyuchevskoy group of volcanoes. The main direction of ash plume at now - the south-southeast of the volcano-.\n\nA moderate explosive-effusive eruption of the volcano continues. Ash explosions up to 19,700-26,240 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft. (12) Volcanic cloud height:22960-24600 ft (7000-7500 m) AMSL Time and method of ash plume/cloud height determination: 20201118/2135Z – Video data(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 31 mi (50 km)\nDirection of drift of ash plume/cloud of the volcano: S / azimuth 180 deg \nTime and method of ash plume/cloud determination: 20201118/2100Z – Himawari-8(14) Remarks:(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina@kscnet.ru +74152202044\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.