More than 90 million Americans are bracing for severe weather as forecasts call for everything from blinding blizzards to severe thunderstorms and tornadoes from coast to coast.

Heavy snow and strong winds are expected to sweep across the southwestern states, bringing gusts of up to 45 mph and up to eight inches of snow before moving north into the Rocky Mountains and the Pacific Northwest and upper Midwest.

They follow the historical blizzards that shook California this week, leaving people under up to seven feet of snow and tipped Governor Gavin Newsom declared a state of emergency to help with recovery.

And while the west freezes, unusually warm air is expected to settle over the southern plains and move east, bringing with it a cell of strong storms that could bring baseball-sized hail and conditions for dangerous tornadoes.

Snow is expected to change to a wintry freeze in northeastern New York, and parts of New England could see up to 12 inches of snow.

A man shovels snow outside his home in Running Springs, California, on March 1

Snow in California from the storm this week. The governor declared a state of emergency

California

The Golden State turned white this week after rare snowstorms buried parts of the state in snow, with flakes even falling on Disneyland and covering the hills of the Hollywood Sign.

Governor Newsom deployed the National Guard on Wednesday to help residents, particularly in San Bernardino County, where some were trapped in their homes for days.

The National Weather Service has issued wind, freeze and winter storm warnings for the entire Sunshine State that are in effect through Thursday, with some areas dropping as low as 26 degrees Fahrenheit.

The National Guard is working with local law enforcement to open shelters for residents and help get food and water to those trapped, according to the governor’s office.

Southern California’s mountain ranges have been hit with several feet of snow, and residents have asked the governor to help clear roads as supplies of food and water run out.

Several people across the state were trapped by the storm, including workers at the Sugar Bowl Resort in Norden, Calif. – east of Sacramento

Snow on the mountains and plants overlooking Phoenix, Arizona on March 2

“Roofs are collapsing everywhere, people need help and rescue. All stores are running out of food and water. The gas stations are almost out of gas,” Lake Arrowhead resident Mia Nelson told KTLA.

“We need to clear the roads so people can get out of their homes. They are all trapped.”

Counties named in the state of emergency declaration include Amador, Kern, Los Angeles, Madera, Maripasa, Mona, Nevada, San Bernardino, San Luis Obispo, Santa Barbara, Sierra, Sonoma and Tulare.

Some areas not included in the declaration were not ordered to evacuate, including residents of the Olympic Valley east of Sacramento.

The avalanche hit a home in the area around 7 p.m. Tuesday, the Sierra Sun reported, and multiple pictures from around the state showed people buried in snow with white walls climbing over doors and up to second-story windows.

An overturned car due to a tornado that hit Oklahoma on February 27. Similar weather is expected across the region on Thursday

A home destroyed by a tornado in Oklahoma this week. Thunderstorms are expected to intensify in the region

Strong storms in the south

The storm that hit California began moving west on Wednesday and is expected to develop into severe thunderstorms in the southern Plains on Thursday before moving further east to the south.

Storms will begin to develop over eastern Texas, southern Arkansas and northern Louisiana and will bring winds of up to 80 mph and large hail.

Conditions will be favorable for tornadoes, and those that form are forecast to have EF-2 strength and bring winds of 111 miles per hour, according to CNN.

Such storms can tear roofs off buildings, blow up mobile homes and uproot trees from the ground.

Earlier this week, some regions were hit by similar storms that tossed cars and destroyed homes.

As the storm moves east, it will bring severe weather to Alabama, Tennessee, Kentucky, Georgia, northern Florida, and North and South Carolina.

Meteorologists with the National Weather Service warned Thursday’s storms “will not be just another severe weather threat” and advised people in affected areas to remain vigilant.

The storms will be preceded by record winter temperatures in some areas, with temperatures reaching 88 degrees Fahrenheit in San Antonio, Houston and Baton Rouge.

Rain from the storm poses a risk of dangerous flooding in parts of Missouri, Mississippi, Tennessee and Arkansas by Friday.

A flood watch is in effect for those regions through Friday, with up to 6 inches of rain expected Thursday night.

A man shovels snow from the sidewalk in front of a church in Providence, Rhode Island

A man walks his dog in New York after snowfall this week

A woman walks her dog in Boston after the city was covered in snow this week

New York and New England

While New York and New England will be unseasonably warm on Thursday, temperatures will drop quickly overnight, with rain turning to snow by Friday evening.

In New York, that snow will give way to rain, and in other parts of the state, snow melting from this week’s storms could melt and cause flash flooding.

In New Jersey, the Hudson Valley and across Connecticut, that snow could turn into heavy sleet and freezing rain, NBC 4 reports, causing chaos on roads and highways overnight.

Up to five inches of snow fell in the Hudson Valley, with up to eight inches in parts of Connecticut. New York and Long Island will see less than an inch of accumulation.

By Sunday, the weather will ease out of the tri-state region with sunshine and temperatures in the upper 40s.

In Massachusetts and New England, snow and wind will move in Friday night before turning into a strong wintry mix by Saturday morning.

Interior Massachusetts could see up to a foot of accumulation.