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  2. Great Blizzard of 1978 - Wikipedia

    en.wikipedia.org/wiki/Great_Blizzard_of_1978

    Toronto pressure fell to 28.40 inches, breaking its record by 0.17. The 956.0 mb (28.23 inHg) barometric pressure measurement recorded in Mount Clemens, Michigan, was the third-lowest non-tropical atmospheric pressure recorded in the mainland United States [6] and the lowest in the Central United States. [2]

  3. Atmospheric pressure - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_pressure

    Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa ), which is equivalent to 1,013.25 millibars , [ 1 ] 760 mm Hg , 29.9212 inches Hg , or 14.696 psi . [ 2 ]

  4. Inch of mercury - Wikipedia

    en.wikipedia.org/wiki/Inch_of_mercury

    Inch of mercury (inHg and ″Hg) is a non-SI unit of measurement for pressure. It is used for barometric pressure in weather reports, refrigeration and aviation in the United States. It is the pressure exerted by a column of mercury 1 inch (25.4 mm) in height at the standard acceleration of gravity.

  5. Weather map - Wikipedia

    en.wikipedia.org/wiki/Weather_map

    A popular type of surface weather map is the surface weather analysis, which plots isobars to depict areas of high pressure and low pressure. Cloud codes are translated into symbols and plotted on these maps along with other meteorological data that are included in synoptic reports sent by professionally trained observers.

  6. National Weather Service Lincoln, Illinois - Wikipedia

    en.wikipedia.org/wiki/National_Weather_Service...

    [2] [3] [4] In 1898 Springfield became the site of a new weather station that used kites to measure data in the atmosphere using tethered instruments. [2] [5] In 1905 Peoria became the site of a new U.S. Weather Bureau, constructed at the cost of $7,969 the station measured temperatures, wind speeds, precipitation, snowfall, and barometric ...

  7. U.S. Standard Atmosphere - Wikipedia

    en.wikipedia.org/wiki/U.S._Standard_Atmosphere

    Comparison of the 1962 US Standard Atmosphere graph of geometric altitude against air density, pressure, the speed of sound and temperature with approximate altitudes of various objects. [ 1 ] The U.S. Standard Atmosphere is a static atmospheric model of how the pressure , temperature , density , and viscosity of the Earth's atmosphere change ...

  8. 'It's a dire situation': Mandate, crumbling infrastructure ...

    www.aol.com/dire-situation-mandate-crumbling...

    The City of Springfield may see its first water rate hike in 13 years, but officials say the city may not have a choice. 'It's a dire situation': Mandate, crumbling infrastructure behind potential ...

  9. International Standard Atmosphere - Wikipedia

    en.wikipedia.org/wiki/International_Standard...

    Comparison of a graph of International Standard Atmosphere temperature and pressure and approximate altitudes of various objects and successful stratospheric jumps The International Standard Atmosphere ( ISA ) is a static atmospheric model of how the pressure , temperature , density , and viscosity of the Earth's atmosphere change over a wide ...