Forward-looking data on the broad economy, along with new reports on employment and wages, indicate the U.S. economy is in the midst of an unexpected surge.

Managers at manufacturing companies responsible for purchasing reported orders were up in August, over July. The Institute of Supply Management, a trade group for professional purchasing managers at large companies, said its index of manufacturing order activity hit a 14-year high of 61.3%, up sharply from July's 58.1%.

The index is based on 10 components and the key one — the forward-looking new orders sub-index — hit 65.1%. After second quarter growth surged to 4.2%, the economy was expected to slow down. The new orders figure is the first confirmation a good surprise is under way.