(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20220428/0434Z (3) Volcano:Karymsky (CAVW #300130) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:red (6) Source:KVERT (7) Notice Number:2022-30 (8) Volcano Location:N 54 deg 2 min E 159 deg 26 min (9) Area:Kamchatka, Russia (10) Summit Elevation:1486 m (4874.08 ft)(11) Volcanic Activity Summary:The emission of ash from the volcano has ended, but the ash cloud 28x34 km in size on the height 9 km a.s.l. continues to move to the west-northwest of the volcano; at 03:50 UTC the ash cloud was 289 km from the volcano.\n\nA moderate activity of the volcano continues. Ash explosions up to 12 km (39,400 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. (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/.\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.