(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20191002/0445Z
 (3) Volcano:Sheveluch (CAVW #300270)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2019-148
 (8) Volcano Location:N 56 deg 38 min E 161 deg 18 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:10768.24 ft (3283 m), the dome elevation ~8200 ft (2500 m)
(11) Volcanic Activity Summary:According to satellite data, an ash plume up to 6.5-7.5 km a.s.l. continues to drift to the east from the volcano. Рrobably ash fallout on the Komandorskie Islands (Commander Islands)

Explosive-extrusive eruption of the volcano continues. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:21320-24600 ft (6500-7500 m) AMSL Time and method of ash plume/cloud height determination: 20191002/0252Z – JPSS-1 (14m15)
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 301 mi (485 km)
Direction of drift of ash plume/cloud of the volcano: ESE / azimuth 109 deg
Time and method of ash plume/cloud determination: 20191002/0252Z – JPSS-1 (14m15)
Start time of explosion and how determined: 20191002/2339Z – Video data
(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/index_eng.php.

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.