(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20231018/0416Z
(3) Volcano:	Bezymianny (CAVW #300250)
(4) Current aviation colour code:	ORANGE
(5) Previous aviation colour code:	orange
(6) Source:	KVERT
(7) Notice Number:	2023-116
(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:	An extrusive eruption of the volcano continues. Large hot avalanches continue to collapsed on the eastern slopes of the lava dome, the ash from which rise up to 4.5-5 km a.s.l., and an ash plume is moving to the northwest of the volcano. An extrusive eruption of the volcano continues. Ash explosions up to 10-15 km (32,800-49,200 ft) a.s.l. could occur during next 1-3 days. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:	4500-5000 m (14760-16400 ft) AMSL Time and method of ash plume/cloud height determination: 20231018/0207Z – Suomi NPP 15m16
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 32 km (20 mi) Direction of drift of ash plume/cloud of the volcano: NW / azimuth 323 deg Time and method of ash plume/cloud determination: 20231018/0207Z – Suomi NPP 15m16
(14) Remarks:
(15) Contacts:	Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS girina@kscnet.ru +74152202044 Duty 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/. In 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.