(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20230419/0347Z (3) Volcano:Sheveluch (CAVW #300270) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-64 (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 fumarolic activity, an incandescence of the lava dome, and explosions accompanies this process. Satellite data by KVERT shows a plume of resuspended ash is extending for 146 km to the west-northwest of the volcano. In addition, the ash deposited after the Sheveluch volcano eruption on 10-13 April, 2023, rose from the slopes of the volcanoes of the Klyuchevskaya group, and the plume of resuspended ash also extended for 164 km to the west-northwest of these volcanoes.\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:4000 m (13120 ft) AMSL Time and method of ash plume/cloud height determination: 20230419/0310Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 146 km (91 mi)\nDirection of drift of ash plume/cloud of the volcano: WNW / azimuth 283 deg \nTime and method of ash plume/cloud determination: 20230419/0310Z – Himawari-9 14m15(14) Remarks:plumes of resuspended ash(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.