(CNN) — According to AAA, 50 million people are expected to take to the roads, rails and skies during Thanksgiving week. However, two big storms could slow your roll to grandma’s house. Do keep in mind that Thanksgiving is a week away, and the forecast can change. But as of now — here’s an early look at what you can expect.

Storm to batter the Midwest

Low pressure pushes east of the Rockies during the day on Tuesday, bringing a quick round of snow to the Plains before quickly strengthening and taking aim at the Midwest.

  • Chicago will start out with rain on Tuesday afternoon, then turn to snow late Tuesday. The snow should be out of Chicago by Wednesday morning.
  • Parts of Wisconsin and Michigan will get a round of heavy snow on Tuesday and early Wednesday before clearing out.
  • Behind the system, temperatures will drop 5-15 degrees. Much of the Midwest will have highs in the upper 30s to low 40s for Thanksgiving day, with dry conditions.

Busiest travel season

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AAA is expecting this year to be the second-highest number of travelers in at least a decade. The organization is predicting an increase of 1.6 million travelers compared to last year, with most people driving to their destination — thanks to lower gas prices.

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Wednesday is expected to be the day with the most traffic congestion. Atlanta, Los Angeles, New York, Boston, Houston and San Francisco could see more than three times their normal traffic on Wednesday.

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