A severe weather warning has been issued for Mandurah with the Department of Fire and Emergency Services (DFES) urging residents to brace for wet and windy conditions.
The alert has been issued for the Peel region along with the Midwest-Gascoyne, Lower South West, Great Southern, Goldfields-Midlands, South West and Perth Metropolitan areas.
The Bureau of Meteorology has advised a rain band and cold front is moving over western parts of the state, with heavy rainfall and potential 100-kilometre winds on the cards.
Thunderstorms are also looming as likely.
DFES is cautioning residents to stay inside, while motorists are urged to slow down, use their lights and not test unknown depths of water.
People are being urged to do what they can to help themselves, if it is safe to do so, before calling the SES for assistance.
Emergency services have answered more than 40 calls for help since 7am.
If your home has been badly damaged by a storm, call the SES on 132 500.
Visit emergency.wa.gov.au to stay up to date.
