CNN  — 

According to AAA, 55 million people are expected to take to the roads, rails and skies during Thanksgiving week. But three 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.

Track the storms with CNN’s storm tracker

Another storm will batter the Midwest Tuesday into Wednesday

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.

thanksgiving week weather tuesday 20191121
  • 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.

The next system moves through the West Wednesday

An area of low pressure will pump moisture into California late Wednesday and throughout the day Thursday, leaving Thanksgiving Day gray and dreary.

thanksgiving week weather wednesday 20191121
  • A quick shot of rain for Northern California and the Bay Area is expected late Tuesday into Wednesday morning.
  • The heaviest rain will be in Southern California and Western Arizona – including Los Angeles and San Diego throughout the day Wednesday and Thursday.
  • A quick round of snow will blanket the Sierras on Thursday.
  • Much of the rain and snow will be moving out of the Southwest by Saturday morning.
  • Snow is also forecast for the Rockies through Saturday.

What about the Northeast and Macy’s Parade?

There will be a quick round of rain for the Northeast on Wednesday, but it should be cleared out by Thanksgiving Day.

thanksgiving week weather temperature 20191121

So far, the forecast looks dry for the Macy’s Thanksgiving Day Parade. The start of the parade should be under partly cloudy skies with temperatures in the low 40s, and a Northwest wind 10-15 mph. Highs are expected in the mid-40s.

Busiest travel season

AAA is expecting this year to have 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.

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.