(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20190612/0530Z
 (3) Volcano:Klyuchevskoy (CAVW #300260)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2019-97
 (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:The explosive eruption of the volcano continues. According to video data, ash emissions from the volcano continues. Ash plume extend for 120 km to the west-northwest of the volcano.

The explosive eruption of the volcano continues. Ash explosions up to 16,400-23,000 ft (5-7 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft.
(12) Volcanic cloud height:18040 ft (5500 m) AMSL Time and method of ash plume/cloud height determination: 20190612/0525Z – Video data
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 75 mi (120 km)
Direction of drift of ash plume/cloud of the volcano: WNW / azimuth 298 deg
Time and method of ash plume/cloud determination: 20190612/0500Z – Himawari-8
(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/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.