
The Autumn of 2000 was the wettest recorded in the United Kingdom since records began in 1766. Several regions of Atlantic Europe from France to Norway received double their average rainfall and there were severe floods and landslides in the southern Alps. In October and November 2000 a successive series of extratropical cyclones caused severe flooding across the UK.

Cyclone Oratia, was an unusually deep European windstorm which affected Western Europe early in the year for a storm of this type. The storm was the fiercest to hit Britain in October since the Great Storm of 1987, with wind gusts reaching 109 mph (175 km/h), and gusting at up to 90 mph (140 km/h) over much of the south of England. Its barometric pressure fell to 941 hPa (27.8 inHg), over the North Sea making it one of the deepest lows recorded in the country in October. The lowest land-based pressure observation reached 951.2 hPa (28.09 inHg) at RAF Fylingdales, which is not lower than the UK record October value of 946.8 hPa (27.96 inHg) observed at Cawdor Castle on 14 October 1981. Three tornadoes were reported from this storm. The storm contributed to the Autumn 2000 western Europe floods.

The December 2000 nor'easter was a significant winter storm that impacted the Mid-Atlantic and New England regions of the United States around the end of the month. It began as an Alberta clipper that moved southeastward through the central United States and weakened over the Ohio Valley. However, it redeveloped off the coast of North Carolina and moved northward as it intensified. It moved into central Long Island and eventually tracked northward into New England. The storm dropped heavy precipitation throughout the Northeast, especially in northern New Jersey and eastern New York, where snowfall often exceeded 2 ft (0.61 m). Even so, as it struck on a weekend, its effects were generally minor and mostly limited to travel delays, traffic accidents, and business closures.

The Carolina Crusher was one of the most powerful winter storms on record in parts of North Carolina. The storm hit Central Virginia on January 25, 2000 causing thousands of power outages within the area leaving 11 inches in Richmond, VA and 20.3 inches in Raleigh-Durham International Airport before moving out to the Atlantic.

The October 2000 Atlantic Canada storm complex was reported as the worst storm in Prince Edward Island in 30 years. Environment Canada considered as one of the ten most significant weather events in Canada in the year. It moved southeastward from Atlantic Canada in late October 2000, producing high snowfall totals in Maine. It absorbed an unnamed subtropical cyclone, and remained nearly stationary in the Gulf of Maine for over a week. Some locations in Atlantic Canada reported record durations of continuous cloud cover. Daily amounts of rainfall produced flooding in Nova Scotia, while a high storm surge associated with the storm washed out roads in New Brunswick and Prince Edward Island. The storm produced wind gusts that peaked at 104 mph (168 km/h) in Newfoundland, and across the region there were scattered power outages.

Singapore Airlines Flight 006 (SQ006/SIA006) was a scheduled Singapore Airlines passenger flight from Singapore Changi Airport to Los Angeles International Airport via Chiang Kai-shek International Airport in Taipei, Taiwan. On 31 October 2000, at 23:17 Taipei local time, the Boeing 747-412 operating the flight attempted to take off from the wrong runway at Taiwan Taoyuan International Airport during a typhoon. The aircraft crashed into construction equipment on the runway, killing 81 of the 179 occupants aboard. Ninety-eight initially survived the impact, but two passengers died later from injuries in a hospital. As of 2021, the accident is the third-deadliest on Taiwanese soil. It was the first fatal accident involving a Boeing 747-400 and the only fatal accident involving the passenger variant. It is also the first and only Singapore Airlines crash to result in fatalities.

This page documents the tornadoes and tornado outbreaks of 2000, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally, particularly in parts of neighboring southern Canada during the summer season.

Wuhan Airlines Flight 343 was a domestic scheduled passenger flight between Enshi Airport and Wuhan Wangjiadun Airport, both in Hubei province, Central China. On June 22, 2000, the Wuhan Airlines Xian Y-7, registration B-3479, flying the route crashed after encountering an area of adverse weather; the aircraft was struck by lightning and encountered windshear.