Big cities like New York and Philadelphia have set records for the length of time they have gone without receiving an inch of snow in a single day (nearly two years for both locations). Both cities have a chance to end the streak on Sunday, but it all depends on the path of the storm.
Computer weather models continue to show different possible outcomes in the storm's path and intensity, and that is making forecasters hesitant to predict the storm's outcome. The main supercomputer weather models run four times a day, and each time, forecasters compare it with the previous outputs and look for subtle differences or trends.
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