February 1, 2007
The National Weather Service in the United States switches from the Fujita scale to the new Enhanced Fujita scale to measure the intensity and strength of tornadoes.
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Source: Wikipedia (CC BY-SA)
On February 1, in the year 2007:
The National Weather Service in the United States switches from the Fujita scale to the new Enhanced Fujita scale to measure the intensity and strength of tornadoes.
The Fujita scale, or Fujita–Pearson scale, is a scale for rating tornado intensity, based primarily on the damage tornadoes inflict on human-built structures and vegetation.
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Why February 1, 2007 matters:
The National Weather Service in the United States switches from the Fujita scale to the new Enhanced Fujita scale to measure the intensity and strength of tornadoes.
What began on this day left a lasting mark on history. The effects were felt immediately and continued to shape events, ideas, and lives long afterwards.
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Historical context: February 1, 2007
The 21st century has already seen profound shifts: the digital revolution has connected billions while reshaping politics and culture; climate change has emerged as a defining crisis; and new powers have risen to challenge the world order that followed the Cold War.
The event on this day: The National Weather Service in the United States switches from the Fujita scale to the new Enhanced Fujita scale to measure the intensity and strength of tornadoes.
Source: https://en.wikipedia.org/wiki/Fujita_scale (Wikipedia, CC BY-SA)
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