A brewing storm system in the Central US may hinder Thanksgiving travelers.

More than 82 million people are expected to travel by plane, train or automobile during the days leading up to the Thanksgiving Day holiday, according to the American Automobile Association (AAA). And the one thing that can disrupt those travel plans is the weather.

There's an active weather system across the central region of the United States. This week, from Texas and Louisiana to the upper Mississippi Valley, rain is anticipated. Be alert for flooded roadways as there may be thunderstorms with locally significant rainfall from Missouri southward. Although it's too early to predict if severe thunderstorms will be a hazard, they can't be ruled out right now, according to Weather.com.

Here's the forecast weather outlook for the Thanksgiving holiday week:

Travel conditions for Nov. 25

According to AccuWeather meteorologist Bernie Rayno, the storm will likely come out of Texas and into the Midwest from Tuesday into Wednesday, covering an area from northeast Texas through Arkansas, eastern Missouri and the southern half of Illinois.

“So there’s going to be some travel delays across the central part of the United States," Rayno said. "There could even be some strong to severe thunderstorms."

Travel conditions on Nov. 26

By Wednesday, Nov. 26, "the storm will be losing some of its intensity and moisture as it travels from the central states to the Northeast, but given the travel volume, even a few hours of rain can create significant problems on the roads and runways from Washington, D.C., to Philadelphia, New York City and Boston," noted AccuWeather meteorologist Paul Pastelok in an online forecast.

Travel conditions for Nov. 27

The raindrops that greet New York City parade-goers on Thanksgiving morning might be chased away by dry air. However, a large portion of the Atlantic Seaboard may experience wet conditions for the majority of the day if the cold front moves in several hours later, according to AccuWeather.

From Wednesday into Thursday, cold air coming down from Canada will meet moist air over the Great Lakes to create a chance of snow. This pattern change favors a transition to more winter-like conditions across the west-central and central U.S., including much below-normal temperatures and the potential for heavy snow, according to the Climate Prediction Center.

It's likely to mean an "increased cold air intrusion across the northern tier of the contiguous United States" over the next couple of weeks, the forecast states.

CONTRIBUTING Doyle Rice/USA TODAY

SOURCE NOAA, Weather.com, AccuWeather and USA TODAY research

This article originally appeared on USA TODAY: Traveling soon? Maps show forecast for Thanksgiving travelers

Reporting by Janet Loehrke, USA TODAY / USA TODAY

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