South East Tasmania Forecast - Weather (Synoptic) Situation:

An area of low pressure lies over the southeastern mainland, with an associated trough extending northwards, while a ridge of high pressure lies to the south of Tasmania. A moist easterly flow over Tasmania will continue as the low becomes complex on Saturday and moves southwards, with a rain band to extend over Tasmania producing locally heavy falls about the north and northeast. Rain will continue through Sunday as the low moves near the southwest of Tasmania, with winds to shift northwesterly during the afternoon. The flow will then tend southerly on Monday as the low moves away to the southeast, with a high to move to the south of Tasmania on Tuesday as winds tend easterly later.

Bureau of Meteorology