The chart below (click on it to get it full size; and apologies for its less-than-satisfactory readability --- I'm still working on the program which I wrote to create graphs and indices) shows the year on year % change in real GDP and my index. Consider this a work in progress, which it (especially the plotting program) is. The shaded areas show the periods of NBER-determined US recessions. Note how the labour market index starts turning down before the recession and turns up slightly before or coincident with the beginning of recovery. Key point: note that there are no signs of an impending downturn.
The chart below shows the same series for a shorter period. The conclusion is clear. Remember that GDP "data" tend to get revised a lot, especially for recent years.