If the authorities tell you everything is okay, pack your bags and run.
This is actually the spill way. However, with the amount of water going over it, the hole is getting bigger. This hole will in time work its way back to the dam. When that occurs, the dam will go.
As Sacramento is downstream from this dam, if you see Jerry Brown running for the airport, you’ll know the dam is about to fail.
Not so. Look, I literally live right down the road from the dam dam...The spillway is toast which means they run water down the hillside channel. Barring that, then there is the Emergency Overflow, which is essentially letting the water flow over the top and down the hill and into the river. The spillway and overflow are off to one side of the dam itself. There is no danger to the integrity of the dam itself, just too much water coming in versus how much they can release.
20 years ago we faced a similar situation in where the dam crested a foot short of the top. The weather begins to clear tomorrow an through the weekend so that will help. There is lots of water coming off the hills and into the dam, but barring any future storms the next few days, it should all be fine.
The pictures are impressive but the dam is not going to fail. The spillway will fail, but that is not the end. Just wait for things to clear, throw some boulders into the spillway and concrete that puppy back up.
Like I said, I live here and things are just fine.