CITYWIDE - NEW YORK CITY RESIDENTS are about to experience another weekend of killing cold, according to the National Weather Service, which has issued an Extreme Cold Watch starting at 6 p.m. Saturday and extending to 1 p.m. Sunday. An Arctic air mass combined with strong northwest winds may produce dangerous wind chills as low as 15 degrees below zero from late Saturday afternoon into Sunday morning.
Wind chill is a measure of how quickly bodies lose heat when you combine low temperatures with high winds. And wind chill conditions can be dangerous. "The stronger the winds [and] the colder it is, the more likely you are to develop frostbite in a short amount of time or hypothermia," says Jessica Lee of the National Weather Service's Weather Prediction Center.
Torontonians are being told to bundle up and brace for frigid temperatures Thursday night now that the city has been placed under a yellow cold warning. Wind chill values will make it feel like 30 to 35 Thursday night into early Friday morning, Environment Canada said in the warning. "Cover up," the federal weather agency said. "Frostbite can develop within minutes on exposed skin, especially with wind chill."