(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20170309/0958Z (3) Volcano:Bezymianny (CAVW #300250) (4) Current Aviation Color Code:ORANGE (5) Previous Aviation Color Code:red (6) Source:KVERT (7) Notice Number:2017-22 (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 satellite data by KVERT, ash plume on the height about 4-4.5 km a.s.l. drift for about 274 km to the north-west from the volcano. Ash plume with large amount of ash for about 157 km longwise is located in 115 km from the volcano. Effusing of the lava flow occur at the north-western flank on the lava dome. Strong gas-steam activity of the volcano continues.\n\nActivity of the volcano continues. Strong ash explosions up to 49,200 ft (15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:13120-14760 ft (4000-4500 m) AMSL Time and method of ash plume/cloud height determination: 20170309/0930Z – Video data(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 170 mi (274 km)\nDirection of drift of ash plume/cloud of the volcano: NNW / azimuth 333 deg \nTime and method of ash plume/cloud determination: 20170309/0910Z – Himawary-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.