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The lowest sea-level pressure in the Western Hemisphere, and the highest reliably-measured non-tornadic sustained winds, are recorded in Hurricane Patricia, which strikes Mexico hours later, killing at least 13 and causing over $280 million in damages.
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Atmospheric pressure
Static pressure exerted by the weight of the atmosphere
Atmospheric pressure, also known as air pressure or barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa (1,013.25 hPa), which is equivalent to 1,013.25 millibars, 760 mm Hg, 29.9212 inches Hg,…Source: Wikipedia (CC BY-SA)
Western Hemisphere
Half of Earth west of the Prime Meridian
The Western Hemisphere is the half of the planet Earth that lies west of the Prime Meridian and east of the 180th meridian. The other half is called the Eastern Hemisphere. Geopolitically, the term Western Hemisphere is often used as a metonym for the Americas or the "New…Source: Wikipedia (CC BY-SA)
Hurricane Patricia
Category 5 Pacific hurricane in 2015
Hurricane Patricia was the most powerful tropical cyclone on record worldwide in terms of maximum sustained winds and the second-most intense on record worldwide in terms of pressure, with a minimum atmospheric pressure of 872 mbar, just behind Typhoon Tip's 870 mbar.…Source: Wikipedia (CC BY-SA)