(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20220720/0525Z
 (3) Volcano:Sheveluch (CAVW #300270)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2022-78
 (8) Volcano Location:N 56 deg 38 min E 161 deg 18 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:3283 m (10768.24 ft), the dome elevation ~2500 m (8200 ft)
(11) Volcanic Activity Summary:A growth of the lava dome continues, a strong fumarolic activity, and an incandescence of the lava dome, explosions, and hot avalanches accompanies this process. Video data by KVERT showed an ash plume up to 5 km a.s.l. extending to the east from the volcano.

The extrusive eruption of the volcano continues. Ash explosions up to 10-15 km (32,800-49,200 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:5000 m (16400 ft) AMSL Time and method of ash plume/cloud height determination: 20220720/0508Z – Video data
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 15 km (9 mi)
Direction of drift of ash plume/cloud of the volcano: E
Time and method of ash plume/cloud determination: 20220720/0508Z – Video data
(14) Remarks:
(15) Contacts: Anton A. Nuzhdaev, IVS FEB RAS
envi@kscnet.ru

Duty 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/.

In 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.