Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 and is moving at 40 kts in ESE direction. The full report is as follows: FVAK21 at 03:32 UTC, 04/01/20 from PAWU VAAAK1 VA ADVISORY DTG: 20200104/0330Z VAAC: ANCHORAGE VOLCANO: SHISHALDIN 311360 PSN: N5445…