You are now in California and the U.S. category.

A new train of storms has arrived along the Pacific coast, and a potent one is set to hit California hard with heavy rain, mountain snow and strong winds during the latter part of this week. The first storm will focused on areas from Northern California to Washington during Wednesday and Thursday. The second storm in the series will focus most of its moisture on Central and Southern California from Thursday night to Saturday.

Northern California residents, who had spent days at evacuation shelters, were allowed to return to their homes but many stayed only long enough to pack valuables before fleeing an approaching storm that will test recently repaired spillways at the nation’s tallest dam. Authorities say the immediate danger has passed for the nearly 200,000 people living downstream of the Oroville Dam. They said the Lake Oroville water level was 26 feet below the emergency spillway by Wednesday night.

A soft light was just beginning to outline the Tejon Hills as Bret Adee counted rows of wizened almond trees under his breath. He placed a small white flag at the end of every 16th row to show his employees where they should place his beehives. Every so often, he fingered the buds on the trees. “It won’t be long,” he said. Mr. Adee (pronounced Ay-Dee) is America’s largest beekeeper, and this is his busy season. Some 92,000 hives had to be deployed before those buds burst into blossom so that his bees could get to the crucial work of pollination.

The critical document that determines how much space should be left in Lake Oroville for flood control during the rainy season hasn’t been updated since 1970, and it uses climatological data and runoff projections so old they don’t account for two of the biggest floods ever to strike the region. Independent experts familiar with the flood-control manual at Oroville Dam said Wednesday there’s no indication the 47-year-old document contributed to the ongoing crisis involving the dam’s ailing spillways. The current troubles stem from structural failures, not how the lake’s flood-storage space was being managed.