Hurricane Hilary is a Category 4 hurricane with maximum sustained winds of 140 mph.
The storm is expected to make landfall in California on Sunday, August 20.
The hurricane is expected to bring heavy rain, strong winds, and flooding to California.
The storm could also cause power outages and mudslides.
The National Hurricane Center has issued a hurricane warning for parts of California.
Residents in the affected areas should evacuate if told to do so.
They should also have a plan in place in case of power outages or flooding.
The hurricane is expected to weaken as it moves inland, but it could still cause significant damage.
Residents should stay informed about the storm's progress and follow the advice of local officials.
Stay indoors and away from windows. If you must go outside, wear protective clothing and eyewear.