A SEVERE thunderstorm warning has been issued for Mandurah this afternoon.
The Bureau of Meteorology warned the storm could produce damaging winds, heavy rainfall that may lead to flash flooding and large hailstones in the warning area.
Locations which may be affected include Mandurah, Collie, Manjimup, Harvey, Pinjarra and Williams.
This would be the second time Mandurah has been hit by a severe storm this week.
The storm is expected to hit between 12pm and 5pm and ease by 8pm.
— MandurahCoastalTimes (@MandurahCoastal) November 16, 2017
Residents are asked to make sure personal and household belongings outside are brought under cover or held down by something heavy.
The State Emergency Service number is 132 500.
The next weather update is due at 3pm at BOM.