Light rain and winds in Townsville, with the ocasional strong wind gusts. All windows taped up, all loose stuff put in shed or tossed in to the swimming pool.
As JourneyMan Mick said, waiting is the worst part.
I can still remember Althea in 1971 - big sheets of roofing iron floating past like they were paper, water in the downpipes in the house over the road actually going up the pipes, with a big fountain spray at the top, the rain all going horizontal, forcing its way in at the bottom of the downpipe.
Our biggest fear is damage from flying debris from surrounding properties, esp if roofs start peeling off and becoming airborne.
Our ensuite is a cyclone shelter, being a Besser block walled structure with a 6 inch reinforced concrete roof and a small window to the outside. I don't know why the local council doesn't insist on all building having this - it is minimal extra cost when building.
The attached picture gives a comparison of Yasi with other large cyclones.