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Barometric pressure recorded at Auckland on the 3 February was 955hPA. [4] Blenheim and New Plymouth recorded a minimum of about 968hPA during this event. At Nelson the barometer fell from 30.10 deg to 20.60 deg in 24 hours. Barometric pressure on the West Coast fell to 980hPA.
[8] [9] The temperature was recorded twice a day, at 9 am and noon, and the air pressure was also measured at noon. [1] There are two records of snowfall which is a rare event in Auckland and Northland, having only occurred since European settlement six times as of 2016. An entry from 30 July 1849 reads: "Hail storms.
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]
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 ...
The Danish Meteorological Institute report record barometric pressure for Denmark (since 1874) as: Highest air pressure: 23 January 1907, Skagen and Copenhagen 1062.2 hPa. [107] [108] Lowest air pressure: 20 February 1907, Skagen 943.5 hPa. [107] Danish records both occurred within a month during the same winter, and same winter as Norwegian ...
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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.
The interchangeability of pressure and wind allows for the two to be used to give equivalencies for the public. [3] Pressure-wind relations can be used when information is incomplete, forcing forecasters to rely on the Dvorak Technique. [8] Some storms may have particularly high or low pressures that do not match with their wind speed.