(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20201022/0319Z
(3) Volcano:	Bezymianny (CAVW #300250)
(4) Current aviation colour code:	ORANGE
(5) Previous aviation colour code:	red
(6) Source:	KVERT
(7) Notice Number:	2020-193
(8) Volcano Location:	N 55 deg 58 min E 160 deg 35 min
(9) Area:	Kamchatka, Russia
(10) Summit Elevation:	9452.96 ft (2882 m)
(11) Volcanic Activity Summary:	The explosive eruption of Bezymianny volcano finished. The large ash cloud continues to be in the area of Klyuchevskoy group of volcanoes, but its height has decreased to 5-5.5 km a.s.l. The cloud has divided on the northern part (105x57 km in size) and the southern (36x67 km in size). Activity of Bezymianny volcano continues. Ongoing its activity could affect low-flying aircraft.
(12) Volcanic cloud height:	16400-18040 ft (5000-5500 m) AMSL Time and method of ash plume/cloud height determination: 20201022/0230Z – Himawari-8
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 73 mi (118 km) Direction of drift of ash plume/cloud of the volcano: N / azimuth 352 deg Time and method of ash plume/cloud determination: 20201022/0230Z – Himawari-8 Start time of explosion and how determined: 20201021/2022Z – Video data
(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.