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Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.
A tornado is an example of an extreme weather event. This tornado struck Anadarko, Oklahoma during a tornado outbreak in 1999.. Extreme weather includes unexpected, unusual, severe, or unseasonal weather; weather at the extremes of the historical distribution—the range that has been seen in the past.
Severe weather is one type of extreme weather, which includes unexpected, unusual, severe, or unseasonal weather and is by definition rare for that location or time of the year. [5] Due to the effects of climate change, the frequency and intensity of some of the extreme weather events are increasing, for example, heatwaves and droughts. [6]: 9
Climate change made the 10 deadliest extreme weather events over the past two decades worse, contributing to the deaths of more than 570,000 people, scientists have said.
The global weather phenomenon El Niño, in which surface waters are abnormally warm in the eastern tropical Pacific, was a major player in many of the top weather events in 2023.
Christopher C. Burt, a weather historian writing for Weather Underground, believes that the 1913 Death Valley reading is "a myth", and is at least 2.2 or 2.8 °C (4 or 5 °F) too high. [13] Burt proposes that the highest reliably recorded temperature on Earth could still be at Death Valley, but is instead 54.0 °C (129.2 °F) recorded on 30 ...
The World Weather Attribution initiative – a team of scientists that analyze the role of climate change in the aftermath of extreme weather events – found planet-warming pollution made the ...
NOAA's National Centers for Environmental Information (NCEI) has reported growing numbers of weather and climate-related events costing at least a billion dollars, [1] exceeding the 1980–2019 inflation-adjusted average of 6.6 such events. [2] This list of United States natural disasters is a list of notable natural disasters that occurred in ...