5 minutes agoLast updated 5 minutes ago
There'll be rain and freshening winds over the next couple of days before the weather starts to turn much warmer for some.
Heat wave alerts were issued in several countries as temperatures rose to 40C this weekend.
The storm is travelling slowly up the coast, bringing strong winds and rain to the US state.
In the latest edition of Climate Check, we look at why the polar regions are warming so fast and how higher temperatures there can affect the rest of the world.
Around 7,800 people are told to leave their homes in southern California because of the fire.
BBC Weather in association with MeteoGroup
All times are BST (Europe/London, GMT +0100) unless otherwise stated.