Sheveluch Volcano. Monitoring
Aviation Color Code:
ORANGE 
Current State: A growth of the lava dome continues, a strong fumarole activity, and an incandescence of the lava dome, explosions, and hot avalanches accompanies this process. According to video data, explosions sent ash up to 7 and 5 km a.s.l. on 19 and 21 June, respectively. Satellite data by KVERT showed: on 19-20 and 21 June, respectively, ash clouds moved for 255 east-northeast and for 70 km southwest of the volcano; a thermal anomaly over the volcano all week. 
Danger Prognosis for Aviation: 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.