It arrived from Townsville and later departed to Brisbane before then returning to Townsville where it appears to be based.
UPDATE! Just after this post was published, very late on Monday 31 August, VH-OFA "Ambulance 614" was back in CQ, visiting Rockhampton Airport, arriving from and later departing back to Townsville with it heading home in the wee small hours of Tuesday 1 September.
Meanwhile, late on Sunday 30 August, fellow LifeFlight (Aeromed) Canadair CL-600-2B16 Challenger 604 bizjet VH-OFC "Ambulance 634" was noted visiting Emerald Airport. It arrived from and later departed back to Brisbane.
Photo taken by 'JM' ©️