The rain has started to return in Northern California and will continue over the next few days, but officials aren't as concerned about the upcoming weather so much as the damage already done to the Oroville Dam's already compromised main spillway.

The risk of flooding has dropped substantially, but Butte County Sheriff Kory Honea warned residents Wednesday that they remain in "an emergency situation."

Danger lurking at Oroville Dam: Days of rain coming

In some ways, the efforts to make repairs to the damaged emergency spillway at the Oroville Dam are a race against time.

Forecasters say Monday and Tuesday should be dry. But on Wednesday, more rain is possible. And the wet weather is expected to continue into the weekend.

The rain is likely to increase water levels at Lake Oroville. Sunday night, officials were able to send water out of the damaged main spillway, taking pressure off the emergency spillway. Workers plan to make repairs to the emergency spillway beginning Monday.

The main spillway was damaged -- officials say the cost could reach $200 million or more -- after a series of record rain and snow storms swelled the reservoir.

After five years of drought, Northern California has experienced one of the wettest winters on record.

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