Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 and is moving at 25-30 kts in NE direction. The full report is as follows: FVXX22 at 11:21 UTC, 19/02/19 from KNES VA ADVISORY DTG: 20190218/0711Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837…