The Department of Fire and Emergency has issued a severe weather warning for locations including Esperance and Hopetoun.
The warning, issued at 10:41am on June 10, states the weather is not unusual for this time of year, but could damage homes and make travel dangerous.
DFES advises you to close your curtain and stay inside away from windows.
Unplug electrical appliances and avoid using landline telephones if there is lightning.
Those outside are warned to find safe shelter away from trees, powerlines, storm water drains and streams.
If there is flooding, create your own sandbags by using pillow cases filled with sand and place them around doorways to protect your home.
If boating, swimming or surfing leave the water.
Do not drive into water of unknown depth and current.
Slow down, turn your lights on and keep a safe distance from other drivers.
Be alert and watch for hazards on the road such as fallen powerlines and loose debris.
If it is raining heavily and you cannot see, pull over and park with your hazard lights on until the rain clears.
Take care in areas that have been flooded and be careful driving on gravel roads as surfaces will be slippery and muddy, and vehicles could become bogged.
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
The cold front is expected to lie near Geraldton to Hopetoun by about 5.00pm.
The front will begin easing later Monday evening as it moves further east.
Damaging winds up to 100 kilometres per hour are possible today.
Damaging winds are most likely over exposed coastal and adjacent areas between Jurien Bay and Hopetoun, however they may extend to inland areas with the passage of the cold front.
Small hail is possible at times during the day.
Road information may be available by calling Main Roads WA on 138 138 or visiting www.mainroads.wa.gov.au.
DFES is monitoring the situation.
SES volunteers respond on a priority basis and people are asked to remain patient.
If your home has been badly damaged by a storm, call the SES on 132 500
In a life threatening situation call 000
To keep up to date, visit www.emergency.wa.gov.au or call 13 DFES (13 3337).
Updates will be issued if further information becomes available.