(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20211107/0105Z
 (3) Volcano:Karymsky (CAVW #300130)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2021-140
 (8) Volcano Location:N 54 deg 2 min E 159 deg 26 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:1486 m (4874.08 ft)
(11) Volcanic Activity Summary:The eruptive activity of the volcano continues. According to satellite data, an ash plume is extending about 110 km to the north-east of the volcano.

A moderate eruptive activity of the volcano continues. Ash explosions up to 10 km (32,800 ft) a.s.l. could occur at any time. 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: 20211106/2358Z – MODIS TERRA (31m32)
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 110 km (68 mi)
Direction of drift of ash plume/cloud of the volcano: NNE / azimuth 20 deg
Time and method of ash plume/cloud determination: 20211106/2358Z – MODIS TERRA (31m32)
(14) Remarks:
(15) Contacts: Dmitry V. Melnikov, IVS FEB RAS
dvm@kscnet.ru

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.