(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20220523/2323Z (3) Volcano:Bezymianny (CAVW #300250) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:yellow (6) Source:KVERT (7) Notice Number:2022-39 (8) Volcano Location:N 55 deg 58 min E 160 deg 35 min (9) Area:Kamchatka, Russia (10) Summit Elevation:2882 m (9452.96 ft)(11) Volcanic Activity Summary:The extrusive-effusive eruption of the volcano continues, a strong fumarole activity, and an incandescence of the lava dome, and hot avalanches accompanies this process. Strong hot avalanches on the eastern flank of the lava dome continues. A gas-steam plume with some amount of ash is extending for 30 km to the northwest of the volcano.\n\nThe extrusive-effusive eruption of the volcano continues. Aerosol clouds and ash plumes from hot avalanches could occur at any time. Ongoing activity could affect low-flying aircraft. (12) Volcanic cloud height:4000-4500 m (13120-14760 ft) AMSL Time and method of ash plume/cloud height determination: 20220523/2300Z – Video data(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 30 km (19 mi)\nDirection of drift of ash plume/cloud of the volcano: WNW / azimuth 294 deg \nTime and method of ash plume/cloud determination: 20220523/2223Z – NOAA 19 (4m5)(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.