Updated on January 6, 6:00 PM:
An Arctic air mass persistent in parts of the Northeast United States on Friday had sent temperatures below zero.
The frigid weather conditions are prevailing due to bomb cyclone and polar vortex that hit the East Coast.
Cyclone Bomb left some vehicles sheathed in ice on roads in Boston. It covered landmarks in New York with snow. Airports were also closed for hours in wake of the storm.
As per weathermen, wind chills in one part of New Hampshire were also in the forecast to hit -100°C.
As per the National Weather Service, cities such as Minneapolis and Boston are likely to reach below zero degrees on Saturday and with low wind chills. Many places could also witness a low as minus 40 degrees. Hefty snowfall activity has stopped, though chilly weather with harsh winds will prevail.
Updated on January 4, 4:00 PM:
An extreme winter storm is hitting the eastern provinces of the US, extending a chilly snap that has already killed eleven people. As per the weathermen, an excessive pressure drop is already bringing in the snow to Florida and will lead to an explosive wintry weather typhoon alongside the Eastern US.
The USA has been reeling under this record-breaking frigid temperature for the last 10 days that commenced around Christmas. But the expected new chilly storm has led meteorologists to coin a brand-new term - bomb cyclone.
The National Weather Service (NWS) has warned that the polar air mass will remain rooted over the eastern two-thirds of the country through the weekend. NWS further added that bone-chilling temperatures and hazardously cold wind chills are also expected predicted.
A "bomb cyclone" or "climate bomb" is an informal term used to refer an explosive cyclogenesis. This generally happens when the central pressure of a low-pressure system falls via 24 millibars in 24 hours. This would further cause violent winds developing around the system.