BISMARCK, N.D. (KFYR) - There is an old wives’ tale that 90 days after fog comes rain or snow. This has been studied that within a window of five days on either side of the 90-day mark ...

The thick fog got me thinking about the thick fog theory. The theory states that 90 days after thick fog, expect precipitation. This is a theory that garners more attention in the winter as snow ...

People reported a persistent "toxic fog" across the U.S. and other areas. The phenomenon may be more benign, though.