(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20230904/0031Z
 (3) Volcano:Sheveluch (CAVW #300270)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2023-92
 (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:Video and satellite data by KVERT shows a strong wind lifts ash from the southern slopes of Sheveluch volcano, and a plume of resuspended ash is extending about 110 km to the east of the volcano.

An extrusive-effusive eruption of the volcano continues. A danger of ash explosions up to 10 km (32,800 ft) a.s.l. is remains. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:2500-3000 m (8200-9840 ft) AMSL Time and method of ash plume/cloud height determination: 20230904/0030Z – Video data
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 110 km (68 mi)
Direction of drift of ash plume/cloud of the volcano: E / azimuth 93 deg
Time and method of ash plume/cloud determination: 20230904/0000Z – Himawari-9 14m15
(14) Remarks:
(15) Contacts: Dmitry V. Melnikov, IVS FEB RAS
dvm@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.