Winter storms and extreme cold are forecast to wallop the U.S. with snow and ice through the weekend. Prepare for power outages and transportation issues.

A massive winter storm named fern is set to sweep across much of the United States, bringing snow, ice and extreme cold. Over 230 million people could be affected, with major travel and power disruptions expected.

Sunny with a high of 89 °F (31.7 °C). Winds WNW at 7 mph (11.3 kph). Night - Clear. Winds variable at 6 to 8 mph (9.7 to 12.9 kph). The overnight low will be 73 °F (22.8 °C). Mostly sunny today with a high of 89 °F (31.7 °C) and a low of 65 °F (18.3 ...

Across the United States, a growing body of grid data now points to specific regions where a single storm or heat wave could trigger cascading, multi‑day blackouts. A new generation of outage maps and reliability assessments is turning that risk into something visible,