Did they really say 2-4 inches?????

The forecast for this 48 hour storm which is finally winding down right now was for 2-4 inches of snow along the coastal areas with heavy rain and high winds.
Hmmmmmmm......2-4 inches somehow turned into 24 inches. I understand meteorology isn't an exact Science, but Geezum Crow!!!
Yes, we got close to 24 inches here in my neighborhood.
Here is my backyard shed with a fallen tree limb. Luckily the limb wasn't too heavy and I don't think it caused any damage.