Timeline: Here's when the heavy rain will arrive
There will be periods of moderate to heavy rain throughout Thursday.
Light rain will cover much of the region through the morning hours, but the storm will ramp up in the afternoon when a cold front moves in from the north. The Los Angeles area will see the heaviest rain from mid-afternoon to early evening.
The cold front starts leaving the region Thursday night.
Showers will linger through Friday as the storm moves out, setting up a dry weekend.