Be prepared and avoid the destruction that comes with severe storms accompanied by lightning, hail and flash flooding.
"Damaging winds can bring down trees, branches, power lines, remove roofs and blow around outdoor items, for example outdoor furniture and trampolines," Mundaring SES administration officer Doug Pitney said.
Heavy rainfall can cause water damage to homes by rising rapidly, flooding homes, property and roads, while floodwaters can also make drains and other water courses a safety hazard.
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READ NOWMr Pitney said now was the time to take a few simple steps to avoid meeting the SES on a cold and wet winter's night.
"Prepare for the coming storm season and you can minimise storm damage to your property and leave us safely tucked up in bed as well," Mr Pitney said.
If property is storm damaged, first access the damage and determine who can help.
The following agencies can provide help in a range of situations:
Life-threatening situation: 000
Power outage : 13 13 51 and this includes powerlines tangled in fallen trees
Water supply: 13 13 75
SES emergency assistance: 132 500
State Emergency Service volunteers can assist people with other emergencies, such as undertaking temporary building repairs to prevent further storm damage.