Harsh conditions, high temperatures slow outback WA search for Mark Sear

An older, dark-haired man with a salt-and-pepper beard wears a high-vis jacket.

Mark Sear was last seen leaving Moola Bulla Station, north of Halls Creek.  (Supplied: WA Police)

In short:

A police search in WA's remote north for a missing 62-year-old man is ongoing but conditions are hampering those involved.

Mark Sear was last seen on September 19, near Halls Creek.

What's next?

WA Police say the search will continue until all avenues are exhausted.