A major winter storm is spreading across a large portion of the United States, bringing heavy snow, damaging ice, and extremely cold temperatures to millions of people. The storm spreads across hundreds of miles and is expected to continue affecting different regions until Monday, according to weather reports. Because of the storm including several different hazards, officials say it could be very dangerous.

One of the most serious concerns is the rapid change in temperatures. Extremely cold air has moved quickly across the country, causing sudden drops in temperature in many areas. Some locations are experiencing near record breaking cold, and these freezing conditions are expected to last for several days. The bitter cold increases the risk of frostbite and hypothermia and also makes travel more dangerous by allowing snow and ice to build up faster on roads.

Heavy snowfall has already been reported from the Plains through the parts of the mid Atlantic and Northeast. Many areas including New York and Boston have received between 6 and 12 inches of snow, while some locations have reported snowfall more than a foot. In the Northeast. Several  inches of snow are expected through Monday. At times, snow may fall at rates of one inch or more per hour, making it difficult for snowplows to keep roads clear.

Freezing rain is also creating dangerous conditions that are spreading across the United States. Ice buildup on roads, power lines, and trees has led to slippery travel surroundings and widespread power outages. Hundreds of thousands of people have been left without electricity as heavy ice damages power lines. Officials warn that in areas with power outages and travel issues could last well into the week.

First responders are urging people in affected regions to stay informed, limit unnecessary travel, and prepare for continued winter weather. With snow, ice, and extreme cold all contributing, this storm serves as a reminder of how dangerous winter weather can be.