(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20170616/0543Z
(3) Volcano:	Bezymianny (CAVW #300250)
(4) Current Aviation Color Code:	RED
(5) Previous Aviation Color Code:	orange
(6) Source:	KVERT
(7) Notice Number:	2017-138
(8) Volcano Location:	N 55 deg 58 min E 160 deg 35 min
(9) Area:	Kamchatka, Russia
(10) Summit Elevation:	9452.96 ft (2882 m)
(11) Volcanic Activity Summary:	According to the data by Tokyo VAAC, explosive event began at 0453 UTC on 16 June, 2017. At now an ash cloud in size 28x25 km drift to the north-east from the volcano. KVERT continues to monitor the volcano. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:	32800-39360 ft (10000-12000 m) AMSL Time and method of ash plume/cloud height determination: 20170616/0510Z – Himawari-8
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 25 mi (40 km) Direction of drift of ash plume/cloud of the volcano: NE / azimuth 50 deg Time and method of ash plume/cloud determination: 20170616/0510Z – 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 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.