"Oil could be closer to $100 a barrel towards the end of this year, this could be a negative shock to the economy," he said, adding that other dangers come from long-term interest rates and big budget deficits.
In the next few months, unemployment may reach 11 percent in the US and around 10 percent in Europe.
Because of bad macroeconomic data and poor earnings prospects as companies have weak pricing power and demand is still subdued, the surprises will be on the downside, he said.
"That's why I believe there's going to be a significant market correction for equities, for commodities and even for credit," Roubini added.
He said recovery signs should come from unemployment, housing, industrial production, sales and consumption data.
"When I look at them I see so far still more yellow weeds than green shoots. They have to bottom out, in my view they haven't bottomed out. This recovery, unfortunately, because of the debt overhang… is going to be a very weak economic recovery, in my view," he added.