(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20170617/0201Z
(3) Volcano:	Klyuchevskoy (CAVW #300260)
(4) Current Aviation Color Code:	ORANGE
(5) Previous Aviation Color Code:	orange
(6) Source:	KVERT
(7) Notice Number:	2017-142
(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:	Explosive eruption of the volcano continues. Satellite data show ash plume extend for about 100 km to the east from the volcano. Explosive eruption of the volcano continues. Ash explosions up to 26,200-32,800 ft (8-10 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:	16400-19680 ft (5000-6000 m) AMSL Time and method of ash plume/cloud height determination: 20170617/0029Z – MODIS TERRA (31m32)
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 62 mi (100 km) Direction of drift of ash plume/cloud of the volcano: E / azimuth 99 deg Time and method of ash plume/cloud determination: 20170617/0029Z – MODIS TERRA (31m32)
(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.