![]() The lower elevations got more than a foot of rain. Post-storm images showed the mountain summits capped in snow. Snow isn’t unusual on the Big Island peaks of Mauna Loa and Mauna Kea, but an actual blizzard is, and that is what arrived in a stronger-than-usual Kona storm over the first weekend of the month. Then in early December, a blizzard hit Hawaii. Flooding was extensive on both sides of the Canadian border. In mid-November some of the same areas of the Pacific Northwest that sweltered through heat and fires in summer and had been doused by rain in October were walloped by the most intense atmospheric river of the season. Tornadoes were the big weather story toward the end of the year, but not the only one. The system produced 61 reports of hurricane-force gusts (75 mph or greater), the most on record in a single day. At least 32 tornadoes were reported to the National Weather Service, including Minnesota’s first ever in December. More than 88 people were killed, making it the country’s deadliest December tornado outbreak ever.įive days later, a historic complex of storms blasted hurricane-force winds from New Mexico to Michigan, grounding planes, generating dust storms, fanning fires and knocking out power to more than 600,000 customers. The twisters sheared houses off their foundations, collapsed huge commercial buildings and tossed train cars through the air. 11, amid record-setting warmth, an even later, larger and more violent outbreak of tornadoes roared through nine states. The instability that produced them came from a strong cold front meeting Atlantic waters that were as much as six degrees warmer than normal.Ī few weeks later on Dec. 14, 11 twisters touched down in New York, Rhode Island and Connecticut the four that landed in Connecticut were the only November tornadoes ever recorded in the state. By late fall, the humid, unstable air needed for tornadoes is usually limited, especially outside the South. Tornadoes occur year-round, whenever hot, moist air close to the ground collides with cooler, drier air above and creates thunderstorms. November and December Late-breaking tornadoes and a blizzard in Hawaii ![]()
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