Bushfire alert lowered in southeast Perth

Bushfire warnings have been downgraded in Perth's southeast and an area in the southwest of Western Australia.

Lives and homes are under threat as an out of control bushfire burns in Perth's southeast. (AAP)

The emergency warning for an out of control bushfire burning in Perth's southeast has been downgraded.

The DFES has issued a watch-and-act alert on Monday night for people in the western part of Wattle Grove in an area bounded by Bickely Road, Roe Highway, Welshpool Road East, Hale Road, Wandoo Road, Lesmurdie Falls National Park and Kelvin Road.

But there is still a possible threat to lives and homes as the fire moves slowly in a northerly direction.

An evacuation centre has been set up at the High Wycombe Recreation Centre.

An uncontained bushfire 4km northwest of Kirup in the southwest of Western Australia has been downgraded to advice-level as the fire has moderated.

But the DFES issued a severe fire danger warning for inland parts of the Midwest Gascoyne on Tuesday, advising residents to have their bushfire survival plans and kits ready.