(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20170327/0202Z
 (3) Volcano:Kambalny (CAVW #300010)
 (4) Current Aviation Color Code:ORANGE
 (5) Previous Aviation Color Code:orange
 (6) Source:KVERT
 (7) Notice Number:2017-34
 (8) Volcano Location:N 51 deg 18 min E 156 deg 52 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:7071.68 ft (2156 m)
(11) Volcanic Activity Summary:The explosive eruption of the volcano continues. Satellite data showed an ash plume about 830 km to the south-east from the volcano.

The explosive eruption of the volcano continues. Ash explosions up to 19,700-26,200 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:16400 ft (5000 m) AMSL Time and method of ash plume/cloud height determination: 20170327/0041Z – MODIS TERRA (31m32)
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 516 mi (830 km)
Direction of drift of ash plume/cloud of the volcano: SE / azimuth 133 deg
Time and method of ash plume/cloud determination: 20170327/0041Z – MODIS TERRA (31m32)
(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 Aviation Color Code is changes. 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.

CITATION GUIDELINES

For formal scientific citation of this VONA/KVERT Information Release, please use the following:
VONA/KVERT Information Release, March 27, 2017. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2017-34.
Aviation Colour Codes

GREEN

Volcano is in normal, non-eruptive state

   or, after a change from a higher level:

Volcanic activity considered to have ceased, and volcano reverted to its normal, non-eruptive state.

YELLOW

Volcano is experiencing signs of elevated unrest above known background levels.    

 or, after a change from higher level:

Volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.

ORANGE

Volcano is exhibiting heightened unrest with increased likelihood of eruption.

   or,

Volcanic eruption is underway with no or minor ash emission.
[specify ash-plume height if possible]

RED

Eruption is forecast to be imminent with significant emission of ash into the atmosphere likely.

  or,

Eruption is underway with significant emission of ash into the atmosphere.
[specify ash-plume height if possible]