Residents across the United States have been alerted to prepare for a range of extreme weather events in the coming days, as everything from scorching heat to icy conditions is expected to impact the nation.

In the Southwest, cities like Phoenix, Arizona, may experience temperatures soaring up to an intense 107 degrees, while Los Angeles is forecasted to endure an unusual March heatwave with temperatures hitting 90 degrees.

Forecasters attribute these sweltering temperatures to a heat dome that is expected to settle over the region as the week begins.

Meanwhile, the Midwest and East are getting ready for a polar vortex, which could affect close to 200 million individuals.

In the Great Lakes area, up to four feet of snow might accumulate following two back-to-back storms, with temperatures expected to dip into the 20s in parts of the Southeast.

Over in Hawaii, continuous rain from an atmospheric river is already causing significant flooding concerns throughout the islands.

Meanwhile in the heartland, wildfires have already torched hundreds of square miles in Nebraska and powerful gusts of wind threaten to fan the flames even further.

‘All of the country, even if you’re not necessarily seeing extremes, are going to see generally changing from cold to warm, or warm to cold to warm,’ Marc Chenard, a National Weather Service meteorologist, told the Associated Press.

Scorching high temperatures were expected to last through the weekend in Southern California, with locals warned that the heat could be life-threatening

Construction workers spray water during an unseasonably hot day at MacArthur Park on Thursday in Los Angeles

Pedestrians on the West Coast sought refuge from the blistering heat by walking with umbrellas (left), meanwhile in Washington D.C. they were being used to avoid the snow

In southern California and Arizona, temperatures in the 80s and 90s are making it feel like summer before spring even officially begins.

Heat advisories and extreme heat watches have been issued in many areas across the Southwest, including Los Angeles and Phoenix.

Highs in Los Angeles could reach 100 degrees between March 17 and 19.

Downtown Los Angeles already registered a record 92 degrees on Friday, but locals have been told to expect even more scorching weather.

Meanwhile, Phoenix could see temperatures between 103 and 109 degrees.

Phoenix has never hit 100 degrees before March 26 in 137 years of record-keeping, according to the NWS.

Officials warned that the ‘historic, long and record breaking March heatwave’ could be life–threatening and highly dangerous for the very young and very old.

Residents without air conditioning and locals exercising outdoors were told to take precautions. 

Highs in Los Angeles could reach 100 degrees next week, urging officials to tell residents to stay inside. The downtown area of the city reached a record 92 degrees on Friday

A National Weather Service meteorologist warned that the entire United States could expect up-and-down weather

This weekend will simultaneously bring extreme heat to the Southwest and frigid cold to other parts of the country

The danger is not just due to the extreme heat, but also because of how unusual it is for this time of the year.

On the opposite side of the country a polar vortex is set to return, bringing frigid temperatures to the Midwest and East.

In Minnesota, snow is expected to begin Saturday and continue through Sunday, with most of the state under winter weather alerts.

Blizzard warnings have been issued for south central Minnesota, including just outside the Twin Cities metro area.

Officials cautioned that heavy snow and strong winds could create dangerous conditions for locals over the weekend.

‘Travel will be very difficult to nearly impossible by early Sunday morning,’ the NWS said Saturday.

A blizzard is expected late Sunday and the cold is set to continue into Monday.

High sustained wind speeds with strong gusts caused widespread damage to equipment that delivered power to customers in Ohio

Heavy snow and strong winds are expected to begin Saturday and continue through Sunday in Minnesota

Snowy conditions in the north might make travel close to impossible. Blizzard warnings have been issued for south central Minnesota

Over in Chicago, a high wind warning was issued on Friday and officials warned that the ‘damaging’ winds could continue through the weekend.

Single digits have been forecast by Tuesday, despite spring being just around the corner.

The polar vortex could also hit some of the Southeast, with Atlanta set to drop into the 20s.

In total, the storm could reach almost 200 million people across the central and eastern US, according to AccuWeather.

Michigan and the Great Lakes will also see cold and snow over the weekend after two storm systems in a row.

The second storm is expected to intensify rapidly, with powerful winds and plummeting pressure creating what is called a bomb cyclone or an Arctic hurricane.

Parts of Michigan could be buried under three to four feet of snow from the upcoming storm.

Authorities have also warned of dangerous travel conditions.

An aerial image showed the damage to Menards caused by an EF-2 tornado that swept Three Rivers, Michigan, on March 6

Strong winds are expected to wallop the east coast after tornadoes already caused damage in Michigan and Oklahoma last week

Power outages and widespread disruptions have already been reported across the state.

More than 110,000 locals were without power due to high winds on Friday, according to the Detroit Free Press.

The National Weather Service has issued a winter storm watch for Mason, Lake, Oceana, Newaygo and Mecosta counties from 2am Sunday through 8pm Monday. 

Michigan was recently rocked by extreme weather when at least eight people died last week following a streak of tornadoes in the state.

Oklahoma, which also experienced the tornadoes, is also preparing to see high winds this weekend.

The same goes for Kansas and Texas, where winds are predicted in the 60 miles per hour range for Sunday night.

Such gusts could pose a problem in Nebraska, where Governor Jim Pillen declared a state of emergency to fight wildfires that prompted evacuations across the state.

National Guard troops have been mobilized to combat the two dozen fires, which have consumed more than 550 square miles.

A powerful Kona storm has caused days of downpours in Hawaii. Floods were expected to continue throughout today and perhaps subside around Sunday

Schools, universities and public libraries have been closed across Hawaii, as the state continues to deal with the dangerous cyclone

Most of Hawaii was under a flash flood warning and more than 130,000 locals lost power as a seasonal cyclone blasted the island state

At least one person has been reported dead to date, according to KETV.

Ohio has also been battered by high winds and more than 100,000 homes are without energy, per the Columbus Dispatch. 

As a whole, the extreme weather across the US is expected to cause mass flight delays and cancellations from Sunday through Monday night, compounding chaos caused by the partial government shutdown which has left 50,000 Transportation Security Administration (TSA) workers without pay.

The extreme weather even extends to outside the mainland, where parts of Hawaii have been hit with an unusual winter weather warning.

Flood watches and high wind watches are in effect throughout the islands as a powerful cyclone called a Kona storm sweeps through.

More than 130,000 Hawaiians are currently without electricity due to power outages, according to the Honolulu Star–Advertiser.

Schools, university campuses and public libraries were closed because of the inclement weather.

The storm was even expected to bring heavy snow, thunderstorms and strong winds to the Big Island Summits, the NWS said.

Flash floods are expected, though the threat is expected to wane on Saturday night into Sunday.