(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.\n\nExplosive-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\n22960-26240 ft (7000-8000 m) AMSL Time and method of ash plume/cloud height determination: 20170615/0600Z – Himawari-8\n\nSecond ash plume\n22960-26240 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\nDistance of ash plume/cloud of the volcano: 398 mi (640 km)\nDirection of drift of ash plume/cloud of the volcano: ENE / azimuth 65 deg \nTime and method of ash plume/cloud determination: 20170615/0600Z – Himawari-8\n\nSecond ash plume\nDistance of ash plume/cloud of the volcano: 183 mi (294 km)\nDirection of drift of ash plume/cloud of the volcano: SW / azimuth 227 deg \nTime 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\ngirina@kscnet.ru +74152202044\n\nDuty 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.\n\nIn 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.