Firefighters have spent the night mopping up a bushfire that reached a watch and alert in West Pinjarra.
The blaze erupted near the Ampol service station along the Forrest Highway just after 2pm on Tuesday.
The fire forced the closure of the highway for several hours as crews worked to bring the blaze under control.
A bushfire advice remains for the area with nearby residents and businesses urged to remain vigilant as temperatures soar into the high 30s on Wednesday and Thursday.
The cause of the bushfire is not yet known.

Locals urged to look out for man who removed electronic monitoring device
Four charged over brutal Warnbro home invasion allegedly linked to illicit tobacco trade
WATCH: Whale beached at Long Point
City of Rockingham records steep increase in animal cruelty complaints related to untreated medical conditions
Accused dirt bike hoons charged by Mandurah Police
Heavy rainfall, thunderstorms to lash Mandurah down to Busselton
Drivers escape serious injury after West Pinjarra, Baldivis crashes
Police investigate stabbing of two men at Warnbro home
Shark sighted in Dawesville Channel
