When I was a kid in St. Louis, there was a TV weatherman named Jim Bolen who, one winter evening, gave a forecast of partly cloudy. A few hours later a huge snowstorm hit the area, Bolen couldn’t make it home and, when he did get home, he said there was a foot of “partly cloudy” waiting to be shoveled off his driveway.
Back in the early 1990s here in Eastern California, our weatherman predicted “mostly sunny skies” for the following day in early March. We got two feet plus of snow. He was shocked!