The Mean Sea Level pressure field is plotted together with Reduced Pressure (millibars). In some cases the reference level for reduced pressure is set to 0m or sea level. In other cases it is set to an elevation more representative of the station elevations, especially in mountainous areas.

Surface Wind Barbs are also plotted in knots. Wind barbs show wind direction and speed. A barb pointing to the left means the wind is from the west. Each flag is 10 knots (11.5 mph), and half flags are 5 knots.