Pressure tendency refers to:

Pressure tendency specifically refers to the characteristic and amount of pressure change over a given period of time. This is a crucial measurement in meteorology because it helps forecasters understand trends in atmospheric pressure, which are essential indicators of changing weather patterns. For instance, a rising pressure trend typically suggests improving weather conditions, while a falling trend may indicate approaching storms or deteriorating weather.

Static pressure readings over time do not capture the dynamics of change, and simply averaging pressures across various stations misses the critical aspect of how pressure is shifting in relation to time. Additionally, pressure limits set by regulations do not pertain to meteorological observations but rather to standards for equipment or operational procedures. Understanding pressure tendency allows meteorologists to make more informed predictions about upcoming weather events, thereby providing valuable insights for daily weather forecasts and alerts.