(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20170330/0838Z
 (3) Volcano:Klyuchevskoy (CAVW #300260)
 (4) Current Aviation Color Code:ORANGE
 (5) Previous Aviation Color Code:orange
 (6) Source:KVERT
 (7) Notice Number:2017-44
 (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:Ash plume is extending for about 97 to the north-west from the volcano.

The explosive eruption of the volcano continues. Ash explosions up to 19,700-26,200 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft.
(12) Volcanic cloud height:21320 ft (6500 m) AMSL Time and method of ash plume/cloud height determination: 20170330/0810Z – Himawary-8
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 60 mi (97 km)
Direction of drift of ash plume/cloud of the volcano: NNW / azimuth 338 deg
Time and method of ash plume/cloud determination: 20170330/0810Z – Himawary-8
(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 Aviation Color Code is changes. VONAs are posted at http://www.kscnet.ru/ivs/kvert/index_eng.php.

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.