The Rural Fire Service says strong winds and high temperatures have led to the season's first severe fire warning today.
Inspector Ben Shepherd said there's a total fire ban in place in the Far Western area and residents should check their bushfire plan.
He said people should call triple-zero if they see an unattended fire.
"We are expecting temperatures to get into the high 20s early 30s but coupled with some quite strong north-westerly winds with gusts up to 75 kilometres an hour," he said.
"And for that reason no fire may be lit until midnight tonight."
Inspector Shepherd said far west residents should check their bushfire survival plan.
"We've already seen a number of fires further east in the state," he said.
"So what we just want to ensure is that when people see a new fire and no one is in attendance, please call 000 immediately, because we have got high grass loads in areas west of the state and we need to jump on these as quickly as possible before they escalate."
© ABC 2012
16:01 EST Sydneysiders should brace for a cold and wet weekend ahead, the coldest since last winter.