Sea Level Pressure and Fronts
Surface pressure charts showing pressure and weather fronts are provided for Europe and the North East Atlantic.
These charts show the surface pressure pattern using isobars (lines of equal pressure) and indicate areas of high (H) and low pressure (L) along with their central pressure value. Isobars are represented by solid lines. High pressure is usually associated with settled weather while low pressure is normally associated with unsettled weather. Fronts are also displayed.