(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20230527/2316Z (3) Volcano:Sheveluch (CAVW #300270) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-72 (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:The extrusive volcanic eruption continues: lava blocks are squeezed out in the explosive crater of the Young Sheveluch, it is accompanied by powerful gas-steam activity, an incandescence of the lava dome, and sometimes hot avalanches. In the area of the Karan dome, powerful gas-steam activity is also observed, probably associated with the growth of a new lava dome. According to the video data, a some amount of ash, together with gas-steam emissions, is carried out from two centers: the active dome and the Karan dome. \n\nAn extrusive eruption of the volcano continues. A danger of ash explosions up to 10 km (32,800 ft) a.s.l. is remains. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:3500 m (11480 ft) AMSL Time and method of ash plume/cloud height determination: 20230527/2315Z – 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: E\nTime and method of ash plume/cloud determination: 20230527/2315Z – Video data(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.