“Blockbuster’ storm heads east, could drop 40 inches of snow. Then an Arctic blast will freeze 200 million Americans.

After hammering California with rain and snow, a “blockbuster” winter storm is taking aim at the East, where as much as 40 inches of snow could fall over the weekend. Road travel may become impossible in the heavy snow, and flight delays and cancellations are likely.

After the storm heads offshore Sunday, the intense cold will be the main weather story as air straight from the Arctic will roar in, bringing below-freezing temperatures to 200 million Americans.