On 3 November Garuda Indonesia diverted its embarkation point for Hajj pilgrims from Solo to Surabaya to keep flights from being delayed by volcanic ash from the erupting Mount Merapi [REF].
On 6 November at 11:07(UTC) the Australian government Bureau of Meteorology (VAAC) issued an ongoing code red Aviation Volcanic Ash Advisory and reported satellite image (MTSAT-2) derived information indicating a volcanic ash plume to FL550 OBS extending 190 nautical miles to the west of the mountain [REF].