Washington has weather worries of its own.
Officials are hoping that rain forecast for this weekend could douse the wildfires that have ravaged California in recent weeks, and have been reignited in the hills behind LA – though there are fears that the water could now bring mudslides instead.
The new President is flying there to see the damage for himself – but is likely to be met by scepticism and concern by Californians, after he suggested he could cut off disaster relief and cancelled a swathe of Biden administration climate policies.