In what units is surface level pressure (SLP) measured?

Surface level pressure (SLP) is commonly measured in millibars (mb), which is a unit of pressure. This measurement is widely used in meteorology to provide an understanding of atmospheric conditions. One millibar is equivalent to 100 pascals, and in the context of weather observations, it allows for easier comparison of pressure readings across different locations and times.

While inches of mercury, pascals, and atmospheres are all valid units of pressure, they are less commonly employed in meteorological reporting when it comes to surface pressure. Millibars provide a standard way to express pressure in weather forecasts and analyses, allowing meteorologists and other scientists to communicate findings effectively.