Waves slammed into beaches along Argentina’s northern coast, including Santa Clara del Mar, Mar Chiquita Partido and Mar de Cobo. The freak waves, known as a meteotsunami, killed a 29-year-old man and injured 35 others, officials said. Meteotsunamis are generated by meteorological conditions. Air-pressure disturbances, the kind linked to fast-moving weather events like severe thunderstorms and squalls, drive meteotsunamis. The storm generates a wave that pushes toward the shore. The wave can become dangerous as it reaches shallow water because it slows down and increases in height and intensity.

Some models and plenty of social media hype have proposed that a snowstorm is ahead this weekend. We look at what might be fact or fiction.

Arctic air will continue to funnel into the U.S. this week and into the weekend. Gusty winds will result in wind chills below zero across the Midwest and Great Lakes with the most dangerous conditions expected Saturday to Monday. The cold air will sink as far south as the Gulf Coast with lows in the 20s and 30s by Thursday and Friday mornings. Watch this video to see how low those temperatures will go.

An arctic cold front will send the Sunshine State into a deep freeze Thursday and Friday. Friday morning will be the coldest morning of the season with lows expected to drop into the 20s in Jacksonville and Tallahassee, near freezing in Orlando and Tampa and with 40s across south Florida including West Palm and Miami. Watch this video to see just how low those temperatures will go.

A dangerous snow squall blasted through the Chicago area Wednesday morning, causing travel troubles across the region. Multiple ground stops were ordered, lasting nearly three hours in total, at O’Hare International Airport as winds were reported over 50 mph in the area. Five flights were also canceled at the airport.