Tiny distances will make a big difference in Saturday snowstorm

A map from the U.S. National Weather Service shows the big snowstorms coming Saturday may clobber one spot but leave a only light dusting a few kilometres away.
The map shows probabilities, not the amount of snow.
Here’s how it works:
This map illustrates the likelihood of getting at least six inches (15 centimetres) of snow by the end of Saturday, and you can pick different time periods on the U.S. National Weather Service winter precipitation page.
The brown strip around the edge of the