(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20211106/0429Z
 (3) Volcano:Karymsky (CAVW #300130)
 (4) Current aviation colour code:RED
 (5) Previous aviation colour code:red
 (6) Source:KVERT
 (7) Notice Number:2021-138
 (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:Explosions sent ash up to 7.5-8 km a.s.l., ash plume extended for 78 km to the east-northeast 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:7500-8000 m (24600-26240 ft) AMSL Time and method of ash plume/cloud height determination: 20211106/0350Z – Himawari-8
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 78 km (48 mi)
Direction of drift of ash plume/cloud of the volcano: ENE / azimuth 66 deg
Time and method of ash plume/cloud determination: 20211106/0350Z – Himawari-8
Start time of explosion and how determined: 20211106/0310Z – Satellite 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.