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  2. 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 ]

  3. Station model - Wikipedia

    en.wikipedia.org/wiki/Station_model

    On the top right corner of the model for a surface weather map is the pressure, showing the last two integer digits of the pressure in millibars, or hectopascals, along with the first decimal. For instance, if the pressure at a certain location is 999.7 hPa, the pressure portion of the station model will read 997.

  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. York, PA Weather - Hourly Forecasts and Local Weather Events ...

    www.aol.com/weather/forecast/us/york-12764776

    30.18 in Pressure --UV Index. 4:57PM ... Winter storm live tracker: Snowfall maps, current alerts, weather warnings, ice forecasts, power outages ... Parts of Indiana expected to get heavy snow ...

  6. List of weather records - Wikipedia

    en.wikipedia.org/wiki/List_of_weather_records

    This is the equivalent sea-level pressure; Tosontsengel is located at 1,300 metres (4,300 ft) above sea level. The highest adjusted-to-sea-level barometric pressure ever recorded (below 750 meters) was at Agata, Evenkiyskiy , Russia ( 66°53′N 93°28′E  /  66.883°N 93.467°E  / 66.883; 93.467 , elevation: 261 m (856.3 ft)) on 31 ...

  7. Jonesborough, TN Weather - Hourly Forecasts and Local ... - AOL

    www.aol.com/weather/forecast/us/jonesborough...

    30.26 in Pressure --UV Index. 5:29PM ... A winter storm watch for central and southern Indiana has been upgraded to a warning as the state braces for cold temperatures. ... current alerts, weather ...

  8. Weather station - Wikipedia

    en.wikipedia.org/wiki/Weather_station

    Personal weather stations have become more advanced and can include many different sensors to measure weather conditions. These sensors can vary between models but most measure wind speed, wind direction, outdoor and indoor temperatures, outdoor and indoor humidity, barometric pressure, rainfall, and UV or solar radiation.

  9. 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]