(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20210211/0211Z (3) Volcano:Karymsky (CAVW #300130) (4) Current aviation colour code:YELLOW (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2021-22 (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 activity of Karymsky volcano significantly decreased. Last strong ash explosions of the volcano up to 5.5 km a.s.l. were observed on 02 January, 2021. The thermal anomaly over the volcano was noted last time on 05 February, 2021. A moderate gas-steam activity of the volcano continues. KVERT continues to monitor of Karymsky volcano.\n\nA moderate gas-steam activity of the volcano continues. The danger of ash explosions up to 16,400-23,000 ft (5-7 km) a.s.l. is remains. Ongoing activity could affect 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.