Nearly 200,000 people were evacuated near Lake Oroville, California, as authorities attempt to fix erosion of one of the emergency spillways of the Oroville Dam. The Oroville Dam, located about 150 miles northeast of San Francisco, is the nation's tallest dam, and a failure could unleash devastating floodwaters downstream.

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With more rain on the way, officials are releasing as much water as possible while working on a fix for the broken spillway. According to the Associated Press, there is no timetable for when residents might be able to return to their homes, and the spillway might need to be fixed before tens of thousands can go back home.

(MORE: Latest News on the Oroville Dam Spillway Emergency)

Water levels were at 101 percent capacity at one point on Sunday evening after flooding and heavy rains have hit the area over the last several weeks, CBS San Francisco reported. For the first time in almost 50 years, an emergency spillway was used Saturday, and water continues to be released on Monday to relieve pressure on the eroding spillway. The evacuation was issued Sunday afternoon to residents living below the lake.

Additional evacuations were ordered in Yuba County, including areas around Hallwood, Marysville, Olivehurst, Linda and Plumas Lake, as well as Biggs and Loma Rica.

We will continue to document this ongoing situation in the gallery at the top of this page, so please check back frequently for the latest images.

MORE ON WEATHER.COM: Flooding in California, Nevada