(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20221222/2341Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:GREEN (5) Previous aviation colour code:yellow (6) Source:KVERT (7) Notice Number:2022-191 (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 explosive eruption of Strombolian type of Klyuchevskoy volcano lasted on 18-26 November, 2022. The temperature of the thermal anomaly decreased to background level on 28 November, and remains at the same level till now. KVERT continues to monitor Klyuchevskoy volcano.\n\nThe activity of the volcano continues. Ongoing activity could affect low-flying aircraft. (12) Volcanic cloud height:NO ASH CLOUD PRODUSED(13) Other volcanic cloud information:NO ASH CLOUD PRODUSED(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.