What is the barometric pressure indicated by SLP833?

The value SLP833 indicates a sea-level pressure of 983.3 hPa. The format SLP refers to "Sea Level Pressure," and the number represents the pressure in a specific encoding system used in meteorology.

In this case, the number is constructed as follows: SLP833 means that the last two digits (33) need to be added to 800 hPa. Therefore, to convert this into the correct barometric pressure, you add 800 hPa to the indicated number and arrive at 983.3 hPa.

Understanding this encoding is crucial for interpreting meteorological data effectively, especially when dealing with reports, charts, and practical flight preparations. Recognizing how SLP values translate into actual pressure readings is essential for pilots and anyone working in aviation meteorology.