The ISM Manufacturing Employment index is usually closely correlated with other data released by the Bureau of Labor Statistics. Growth of employment in the manufacturing sector usually reflects a generally positive situation in the labor market: manufacturers hire more employees, so the number of jobs is growing, and the unemployment rate is declining.
Now, the average period from low unemployment, high unemployment is about 27 months. The shortest period US experienced in the beginning of 60:s, was 7 months and the longest was 44 months inte beginning of the 90:s.
So we can expect a peek in unemployment all between 7 months from now to 44 months.