(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20191220/0949Z (3) Volcano:Bezymianny (CAVW #300250) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2019-181 (8) Volcano Location:N 55 deg 58 min E 160 deg 35 min (9) Area:Kamchatka, Russia (10) Summit Elevation:9452.96 ft (2882 m)(11) Volcanic Activity Summary:Activity of the volcano began to increasing from beginning of December. The incandescence of the volcano summit in the dark time, a small lava flow on the western flank of the lava dome and a strong fumarolic activity were obserwing during the last weeks. The temperature of thermal anomaly continues to gradually increasing. The volcano was covered by clouds for most of yesterday. Strong ash explosions up to 10-15 km a.s.l. could occur at any time. KVERT continues to monitor Bezymianny volcano. \n\nActivity of the volcano gradually increases. Strong ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and 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/index_eng.php.\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.