(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20230105/0106Z (3) Volcano:Sheveluch (CAVW #300270) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-05 (8) Volcano Location:N 56 deg 38 min E 161 deg 18 min (9) Area:Kamchatka, Russia (10) Summit Elevation:3283 m (10768.24 ft), the dome elevation ~2500 m (8200 ft)(11) Volcanic Activity Summary:A growth of the lava dome continues, a strong fumarole activity, an incandescence of the lava dome, explosions, and hot avalanches accompanies this process. Video and satellite data by KVERT shows an ash plume associated with hot avalanches collapse from lava dome is exending for 15 km to the south-west of the volcano.\n\nAn extrusive eruption of the volcano continues. Ash explosions up to 10-15 km (32,800-49,200 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:7000-7500 m (22960-24600 ft) AMSL Time and method of ash plume/cloud height determination: 20230105/0007Z – Video data(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 15 km (9 mi)\nDirection of drift of ash plume/cloud of the volcano: SW / azimuth 236 deg \nTime and method of ash plume/cloud determination: 20230105/0020Z – Himawari-9 14m15\nStart time of explosion and how determined: 20230105/0003Z – Video data(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.