A large and powerful winter storm is about to hit the United States

A large and powerful storm is heading inland from the Pacific Ocean on Saturday, bringing a range of hazards to the west over the weekend.

This storm is already underway in Washington, Oregon and northern California. The storm will drift south during the day Saturday, with heavy rain moving as far south as Los Angeles and San Diego before Sunday.

One to 2 inches of rain are likely over a wide area of ​​the west coast, with a few localized 2 to 4 inch slabs possible. With this type of rain over a relatively short period of time, flash flooding will be a risk on the California coast throughout the weekend.

Storm totals can end up leaving up to 4 to 8 feet of snow in some of the Sierra Nevada mountains in north-central California.

There won’t be extreme snowfall in the lower elevations, where most cities are, so don’t expect to see any snowfall in Sacramento or the rest of the San Joaquin Valley.

The storm then heads east through next week, growing in size. By Tuesday, it could stretch from the Gulf Coast to southern Canada – more than 1,500 miles long.

On Tuesday, there are two main concerns: blizzard conditions in the northern plains and extreme weather conditions in the Deep South.

Heavy snowfall and gusty winds will bring whiteout conditions from Nebraska to Minnesota on Tuesday and Wednesday. While the other side of the storm will bring a chance for powerful thunderstorms and tornadoes in Louisiana, Arkansas and Mississippi on Tuesday.

PHOTO: Storm warning chart

Sunday snow in the northeast

A smaller, less powerful storm system will cross the Great Lakes and northeast on Sunday. Although not a giant storm, it will bring parts of the northeast the first accumulated snowfall of the season.

Snow will mix with rain along coastal areas, so major cities along the I-95 corridor, Philadelphia, New York and Boston, do not see much, if any, snow accumulation.

Upstate New York, northeastern Pennsylvania, northwestern Connecticut and western Massachusetts could see a few inches of wet snow from this storm.

Traveling on Sunday evening can be tricky with snow and rain in the area. Everything clears up by Monday.

ABC News

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