(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20201002/0138Z
(3) Volcano:	Klyuchevskoy (CAVW #300260)
(4) Current aviation colour code:	YELLOW
(5) Previous aviation colour code:	green
(6) Source:	KVERT
(7) Notice Number:	2020-181
(8) Volcano Location:	N 56 deg 3 min E 160 deg 38 min
(9) Area:	Kamchatka, Russia
(10) Summit Elevation:	15580 ft (4750 m)
(11) Volcanic Activity Summary:	According to video data, the Strombolian activity of Klyuchevskoy volcano began to observing from 22:03 UTC on 01 October, 2020, and such activity continues. Explosions send ash up to 300-400 m above the crater of the volcano (about 5 km a.s.l.), a gas-steam plume containing some amount of ash descends along the slope of the volcano towards the east. An ash plume is not detect on the satellite images at this time. A moderate explosive eruption of the volcano possibly will continues. Ash explosions up to 16,400-19,700 ft (5-6 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft.
(12) Volcanic cloud height:	16400 ft (5000 m) AMSL Time and method of ash plume/cloud height determination: 20201002/0038Z – Video data
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 6 mi (10 km) Direction of drift of ash plume/cloud of the volcano: E Time and method of ash plume/cloud determination: 20201002/0038Z – 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.