(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20220921/2243Z
 (3) Volcano:Klyuchevskoy (CAVW #300260)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:green
 (6) Source:KVERT
 (7) Notice Number:2022-117
 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:4750 m (15580 ft)
(11) Volcanic Activity Summary:A strong wind lifts ash from the eastern slopes of Klyuchevskoy volcano, and a plume of resuspended ash extends for 225 km to the east of the volcano.

Klyuchevskoy volcano is quiet. The volcano has no eruption at now, but its gas-steam activity could affect low-flying aircraft.
(12) Volcanic cloud height:4000-4500 m (13120-14760 ft) AMSL Time and method of ash plume/cloud height determination: 20220921/2240Z – Video data
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 225 km (140 mi)
Direction of drift of ash plume/cloud of the volcano: ESE / azimuth 102 deg
Time and method of ash plume/cloud determination: 20220921/2150Z – Himawari-8 14m15
(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.