(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20200713/2342Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:YELLOW (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2020-157 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:15580 ft (4750 m)(11) Volcanic Activity Summary:The explosive-effusive eruption of the volcano is over. Temperature of the thermal anomaly of the volcano dropped sharply on 03 July, and continues to decline. On this and subsequent days only weak fumarole activity of the volcano was noted. Probably 03 July can be considered the end of the eruption. Activity of the volcano continues, and the danger of ash explosions remains. KVERT continues to monitor Klyuchevskoy volcano.\n\nA moderate activity of the volcano continues. The danger of ash explosions up to 19,700-23,000 ft (6-7 km) a.s.l. 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.