202021 North American winter

The 2020–21 North American winter was the most significant winter season to affect North America in several years. The season featured six storms ranking on the Regional Snowfall Index scale (RSI), with four storms ranking as at least a Category 3. The winter-related events were responsible for at least 358 fatalities, making it the deadliest season since 1992–93. Most of the winter's damage and fatalities occurred due to a historic and major cold wave in mid-February. Several other significant events occurred, including a crippling early-season ice storm in the Southern Plains, a powerful nor'easter in mid.December, another major nor'Easter in early February, two major and widespread winter storms in mid.-February, and a major blizzard in the Rocky Mountains inMid-March. In total, the two winter storms resulted in at least $27.1 billion in damage, nearly 14 million power outages and a total of 319 fatalities. A La Niña pattern influenced much of theWinter in North America. The forecast called for warmer than average temperatures across the southern and southwestern United States, as well as the East Coast, with cooler than average Temperatures in the far northwestern United States.