An unstable airmass and low pressure are bringing scattered showers and storms to WA's northern half, the NT, tropical northern Qld, and inland SA. Moist onshore winds are bringing isolated storms across eastern Qld.

Becoming warmer over Vic, Tas and NSW in NE'ly winds ahead of a trough and cool change crossing SA. A broad area of instability, storms and heat will deepen over the NT and northeast WA, with another area also developing over Qld. Gusty and warming E'ly winds for southern WA.

A stormy trough and cool change will move across NSW to southern Qld. Cool for Tas, Vic and southern SA. Gusty N/E'ly winds persisting over southern WA with showers/storms. Storms also in an arc from northern WA across the NT to southeast Qld, with heat in the far north.

Gusty storms will persist in eastern NSW and over Qld near a low pressure area. Storms again for the NT and at least eastern WA in a broad area of instability and heat. Hot also for the northern NT and Qld. Cooler across the south in S'ly component winds, mostly dry in southeast.

Twin low pressure troughs extending south over WA to SA and to NSW from a broad low pressure area over the tropics will generate heat, showers and storms. Cooler but showery in parts across southern areas, including southern WA, Vic and Tas, in southerly component winds.

Twin low pressure troughs over the west and east, extending from a broad low pressure area over the tropics, will generate heat, showers & storms, possibly severe for NSW & Qld. Cooler across southern areas in southerly component winds. A gusty cold front could affect Tas & Vic.

Low pressure troughs extending from northern WA to Qld and NSW and another to southern WA will continue to generate heat, showers, possibly severe storms with heavy rain possible in the east. Cooler in S'ly winds over Tas, Vic and southern SA behind the trough a cold front.