I don't think they'll know for sure how serious it will be till tomorrow afternoon, I guess then if its going to be quite sever we'll have to think about what to do.
Cyclones rarely come this low, its the first one in my lifetime. Being on the coast we already get the stronger winds so I would imagine these will be quite bad. They are predicting 120km/hr winds.
Spoke to mum tonight, she said she'll be incredibly worried for all us kids if it hits, we are all spread out over perth. My twin sister msged me tonight telling me to be prepared and be careful. My brother also lives on the coast but south of the river so I hope he'll be ok