(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20170618/2053Z (3) Volcano:Sheveluch (CAVW #300270) (4) Current Aviation Color Code:ORANGE (5) Previous Aviation Color Code:orange (6) Source:KVERT (7) Notice Number:2017-143 (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:Satellite data show ash plume extended about 167 km to the east-south-east 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:22960 ft (7000 m) AMSL Time and method of ash plume/cloud height determination: 20170618/2021Z – NOAA 18 (4m5)(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 104 mi (167 km)\nDirection of drift of ash plume/cloud of the volcano: ESE / azimuth 113 deg \nTime and method of ash plume/cloud determination: 20170618/2021Z – NOAA 18 (4m5)\nStart time of explosion and how determined: 20170618/1620Z – Satellite data(14) Remarks:(15) Contacts: Alexander G. Manevich, IVS FEB RAS\nmag@kscnet.ru +74152202115\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.