(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20200418/0141Z (3) Volcano:Karymsky (CAVW #300130) (4) Current aviation colour code:YELLOW (5) Previous aviation colour code:yellow (6) Source:KVERT (7) Notice Number:2020-53 (8) Volcano Location:N 54 deg 2 min E 159 deg 26 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4874.08 ft (1486 m)(11) Volcanic Activity Summary:According to satellite data, a moderate gas-steam activity of the volcano Karymsky continues. A very weak thermal anomaly over the volcano was noted on 06 April, 2020, last time. However, over the past few weeks we have noted a small ash content in the gas-steam plumes of the volcano (traces of ash in the snow). Probably, activity of the volcano is gradually increasing. KVERT continues to monitor Karymsky volcano.\n\nA moderate gas-steam activity of the volcano continues. Ash explosions up to 10,000- 13,100 ft (3-4 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircrafts. (12) Volcanic cloud height:NO ASH CLOUD PRODUSED(13) Other volcanic cloud information:NO ASH CLOUD PRODUSED(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 colour code is changed. 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.