Swathes of the US are braced for another weekend of plunging temperatures as a blistering ‘bomb cyclone’ threatens to detonate.

Around 35 million Americans are under extreme weather warnings for snow and ice as Winter Storm Gianna gathers strength and develops into the arctic phenomenon.

The bomb cyclone is expected to bring unusually low temperatures to the Southeast, including typically to mild states like Florida.

Forecasts indicate the cold will reach the Sunshine State by Saturday and intensify through the day into Sunday morning.

But the worst hit areas are expected to be the Carolinas, Virginia and Georgia as well as many other regions still trying to recover from the devastating impact of intense snow and ice during last weekend’s storm.

Flight cancellations have already begun to pile up and topped more than 2,200 on Saturday according to FlightAware.

Wilmington and Raleigh in North Carolina and Columbia in South Carolina could see record breaking snowfall according to forecasts.

Gianna’s pressure is expected to intensify rapidly, which would create an ‘Arctic hurricane’, formally known as a bomb cyclone.

Frigid air from the Canadian Arctic will plunge into the Southeast, raising the possibility of snow along Florida’s Gulf Coast or Atlantic beaches.

The chance of snow flurries around the Tampa Bay late Saturday night into Sunday morning was set at 10 to 20 percent by the National Weather Service. 

The polar temperature will shroud the region in ‘cold, blustery conditions’.

Locals were urged to secure any loose objects as part of the wind advisory, which will also make it hard to drive high–profile vehicles. 

Being on the water will also become perilous for small boats and vessels, according to authorities. 

Orlando could drop to 25 degrees or below, while Miami may see mid–30s Sunday into Monday. That level of cold has not been seen since 2010. 

Wind chills in northern and central parts of the state could fall to the single digits, as well.

The bitter cold has already shuttered the theme parks in Orlando, where both Disney World and Universal Studios announced temporary closures due to the freezing temperatures.

Disney’s Typhoon Lagoon water park will be closed starting today through Monday, while Universal Studios’ Volcano Bay water park will also not operate today.

The freezing conditions are so unique that they could even affect some of Florida’s wildlife, including freezing fruit trees.

 ‘Green iguanas are sensitive to the cold and can become stunned when temperatures fall into the 40s and 30s,’ meteorologist Brandon Buckingham told AccuWeather. ‘When that happens, they may lose their grip and fall from the trees.’

Meteorologists expect the bomb cyclone to form off the Southeast coast near Georgia and South Carolina early Saturday.

The storm is then expected to quickly strengthen as it tracks north along the coast into Sunday.

Some areas are still recovering from Winter Storm Fern last weekend, with residents experiencing power outages.

As of Saturday, more than 150,000 Americans in Louisiana, Mississippi, and Tennessee were still without power following Fern, according to PowerOutage.us.

Overnight lows could drop into the teens and 20s, putting locals at risk.

Tennessee Gov. Bill Lee, a Republican, said that his residents, ‘need a clear timeline for power restoration, transparency on the number of linemen deployed, and a better understanding of when work will be completed in their neighborhood.’

Prolonged exposure to extreme cold can cause hypothermia and frostbite within minutes.

Winter Storm Gianna arrives on the heels of the Winter Storm Fern, which has claimed more than 100 lives.