Not good news at all:

  • Residents near Oroville in Northern California were ordered to evacuate immediately on Sunday

via Reuters

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More (AP):

  • Officials saying a "hazardous situation is developing" after an emergency spillway severely eroded
  • The emergency spillway of the Oroville Dam in Northern California could fail within an hour unleashing uncontrolled flood waters from Lake Oroville, the California Department of Water Resources said on Sunday afternoon.

Map via Google: