Israel knew about the bombing before it happened?

According to Los Angeles Times,

The Israeli newspaper Haaretz reported that Israelis staying at the Radisson on Wednesday had been evacuated before the attacks and escorted back home "apparently due to a specific security threat."
Amos N. Guiora, a former senior Israeli counter-terrorism official, said in a phone interview with The Times that sources in Israel had also told him about the pre-attack evacuations."
It means there was excellent intelligence that this thing was going to happen," said Guiora, a former leader of the Israel Defense Forces who now heads the Institute for Global Security Law and Policy at Case Western Reserve University in Cleveland. "The question that needs to be answered is why weren't the Jordanians working at the hotel similarly removed?"

Horrifying but also interesting. Isn't it?