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Atmospheric MeasurementsRelated Terms
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In Context
Lower central pressure generally corresponds to a stronger storm. Some of the most intense typhoons on record have had central pressures below 900 hPa, far lower than typical fair-weather readings around 1013 hPa.
Related Terms in Atmospheric Measurements
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Air Pressure
Air pressure is another term for atmospheric pressure, the force exerted by the weight of the atmosphere at a given location.
Barometric Pressure
Barometric pressure is atmospheric pressure as measured by a barometer, the standard instrument used to track pressure changes as a storm approaches.
Dew Point
Dew point is the temperature at which air becomes saturated with moisture and condensation begins to form, a more consistent measure of humidity than relative humidity alone.
Hectopascal (hPa)
The hectopascal, or hPa, is the standard unit meteorologists use to measure atmospheric pressure, with a typical fair-weather reading around 1013 hPa at sea level.
Humidity
Humidity is the amount of water vapor present in the air, a key ingredient that fuels the thunderstorm activity within a tropical cyclone.
Millibar
A millibar is a unit of atmospheric pressure, numerically equal to a hectopascal, historically used before hPa became the standard meteorological unit.
Relative Humidity
Relative humidity is the amount of water vapor in the air expressed as a percentage of the maximum the air could hold at that temperature.
Temperature
Temperature measures how warm or cool the air is, and sea surface temperature specifically is one of the main factors determining whether a tropical cyclone can form or intensify.
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This definition is part of the azifind.com Typhoon Wiki, informed by PAGASA and the World Bank/GFDRR catastrophe risk data used across our province pages. View all Typhoon Wiki terms →