2012- 2013 Winter

The Midwest was previously predicted to have below-normal snowfall, but according to AccuWeather, we should see an average accumulation.

Previously, El Nino was expected to be in effect, but instead it is in a neutral stage which could cause a few things to happen. Either the northern or southern jet streams could be dominant, or they could merge together. Northern jet stream would allow for cooler air accross the US, while the southern stream would be warmer.

On the East coast, above normal snowfall is predicted because of the expectancy of the two jet streams meeting and creating large storms in the area.

As for the Midwest, the air will be cold and there will be 'clipper' snow storms, which are fast moving weak snow storms. A high frequency of these storms will allow for an average accumulation of snow.




source:
http://www.accuweather.com/en/weather-news/sandy-winter-2012-2013-forecast/1741302