Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 and is moving at 20-25 kts in SW direction. The full report is as follows: FVXX21 at 02:05 UTC, 28/01/20 from KNES VA ADVISORY DTG: 20200128/0203Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA:…