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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 ...
It resulted in heavy damage due to the high winds and produced record low pressure readings. [1] The lowest confirmed barometric pressure reading, 955.0 mb (28.20 inHg), for a non-tropical system in the continental United States (CONUS) was recorded during this storm at Canton, New York.
However, with a barometric pressure of 895 mbar (hPa; 26.43 inHg), Rita is the strongest tropical cyclone ever recorded in the Gulf of Mexico. [64] In between Rita and Katrina is Hurricane Allen. Allen's pressure was measured at 899 mbar. Hurricane Camille is the sixth strongest hurricane on record.
1667 – Robert Hooke builds another type of anemometer, called a pressure-plate anemometer. [22] 1686 – Edmund Halley presents a systematic study of the trade winds and monsoons and identifies solar heating as the cause of atmospheric motions. – Edmund Halley establishes the relationship between barometric pressure and height above sea ...
The observer would first note if the pressure was lower or higher than three hours prior. Next, a code number would be chosen that best represents the three-hour trace. There are nine possible choices (0 to 8) and no single code has preference over another. In the case of the graph on the barograph, one of two codes could be picked.
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 ]
– Hurricane Leslie attains its initial peak intensity, with sustained winds of 90 mph (150 km/h) and a barometric pressure of 980 mbar (28.94 inHg), about 1,000 mi (1,610 km) west of the southernmost Cabo Verde islands. [92]
On October 6, a vessel near the center of the storm recorded a barometric pressure of 938 mbar (27.7 inHg), signalling it was an intense hurricane even after it crossed the 40th parallel north. [5] [13] This was also the lowest pressure associated with the storm and was used to estimate that maximum sustained winds peaked at 125 mph (205 km/h).