This is a set of contour plots using data from the NAM model. The output fields are consistent with other models so the models can be compared. This model gives forecast information out to 48 hours and plots are sorted 48 hour 4 panel plots where each plot has a panel for the 12, 24, 36 and 48 hour forecast and individual forecast times from initialization to 60 hours in 6 hour increments. These plots are updated once every 12 hours at roughly 11:15 EST.
The sea level pressure and precipitation forecast chart includes three parameters: sea level pressure (cyan lines), 1000-500 mb thickness (solid yellow to red lines; 5400 is orange, 5700 is red) and quantitative precipitation (color filled contours).