(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20170615/0656Z
(3) Volcano:	Sheveluch (CAVW #300270)
(4) Current Aviation Color Code:	RED
(5) Previous Aviation Color Code:	red
(6) Source:	KVERT
(7) Notice Number:	2017-134
(8) Volcano Location:	N 56 deg 38 min E 161 deg 18 min
(9) Area:	Kamchatka, Russia
(10) Summit Elevation:	10768.24 ft (3283 m), the dome elevation ~8200 ft (2500 m)
(11) Volcanic Activity Summary:	Activity of the volcano continues. Two ash cloud continues to drift to the north-east and to the south-west ftom Sheveluch volcano. A front of ash plume 1 is about 640 km to the east-north-east (azimuth 65 degrees) from the volcano. A front of ash plume 2 is about 294 km to the south-west (azimuth 227 degrees) from the volcano. Explosive-extrusive eruption of the volcano continues. 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:	First ash plume 22960-26240 ft (7000-8000 m) AMSL Time and method of ash plume/cloud height determination: 20170615/0600Z – Himawari-8 Second ash plume 22960-26240 ft (7000-8000 m) a.s.l. Time and method of ash plume/cloud height determination: 20170615/0600Z – Himawari-8
(13) Other volcanic cloud information:	First ash plume Distance of ash plume/cloud of the volcano: 398 mi (640 km) Direction of drift of ash plume/cloud of the volcano: ENE / azimuth 65 deg Time and method of ash plume/cloud determination: 20170615/0600Z – Himawari-8 Second ash plume Distance of ash plume/cloud of the volcano: 183 mi (294 km) Direction of drift of ash plume/cloud of the volcano: SW / azimuth 227 deg Time and method of ash plume/cloud determination: 20170615/0600Z – 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.