What's up with winter this year?

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PHOENIX -- Every winter is different, but this winter has people talking.

Some parts of the country, like Chicago, got no snow around Christmas while the usually rainy cities of Seattle and Portland recently got hammered by a major snowstorm.

3TV meteorologist April Warnecke had the opportunity to chat with Gail Skofronick Jackson, a research physical scientist as NASA's Goddard Space Flight Center in Maryland.

She explained how new NASA research is helping weather experts understand the mechanics of winter storms from coast to coast, including the "snowmageddon" event two years ago.