After Perth was lashed by torrential rain last week, another low front expected tonight will add damaging winds to the mix as wet and stormy weather is due to continue over the coming weeks.

The Fire and Emergency Services Authority has issued a dangerous weather warning for WA South West of a line from Jurien Bay to Albany tomorrow.

People in Jurien Bay, Perth, Mandurah, Bunbury, Busselton, Margaret River, Bridgetown, Albany and surrounding areas are urged to prepare their homes and property for potentially damaging winds of up to 125 kilometres per hour, abnormally high tides and flash flooding.

Last week's rain caused widespread damage around Perth last week, but Weatherzone meteorologist Robert Wood said tonight's powerful low front was more likely to cause problems from damaging winds.

"I think the wind will be more of an issue with this one, especially on the southern end of Perth and over to Esperance. This part will see winds in excess of 100km/h," he said.

Winds were expected to increase dramatically by this evening with the strongest squalls forecast along the south-west capes and elevated areas, where gale warnings had already been issued.

Mr Wood said the winds would be followed by heavy rain, with the worst expected in the early hours of tomorrow morning.

"The winds will arrive over the far south-west capes at about 8pm with rain following at about 3am. The front will enter the coast about 8am tomorrow morning," he said.

"The worst of the winds will be from midnight 'till about 6am.

"On average we'll see 20-40 millimetres across the whole south-west land division and probably 40-60 millimetres across some elevated coastal areas and as much as 80 millimetres in some hilltops and coastal areas."

Due to heavy rain last week, ground moisture may contribue to flash flooding, and with the expected strong winds, the soft, wet ground conditions could lead to uprooted trees and power lines.

As June comes to a close, Mr Wood said WA residents should brace for more bad weather in the coming weeks.

"The western part of Australia is in a favourable flow for weather events like showers and storms over the next few months," he said.

For more information from FESA visit www.fesa.wa.gov.au