(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20221126/0433Z
 (3) Volcano:Alaid (CAVW #290390)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2022-183
 (8) Volcano Location:N 50 deg 51 min E 155 deg 33 min
 (9) Area:Northern Kuriles, Russia
(10) Summit Elevation:2339 m (7671.92 ft)
(11) Volcanic Activity Summary:An explosive activity of the volcano continues. Satellite data by KVERT showed an ash plume extended about 220 km to the south-east of the volcano.

A moderate eruptive activity of the volcano continues. Ash explosions up to 6 km (20,000 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:3500 m (11480 ft) AMSL Time and method of ash plume/cloud height determination: 20221126/0321Z – JPSS-1 15m16
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 220 km (137 mi)
Direction of drift of ash plume/cloud of the volcano: SE / azimuth 133 deg
Time and method of ash plume/cloud determination: 20221126/0321Z – JPSS-1 15m16
(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.