This is a set of contour plots using data from the GFS model. The output fields are consistent with other models so the models can be compared. This model gives forecast information out to 240 hours and plots are 48 and 96 hour 4 panel plots where each plot has a panel data for a specific forecast time (12-48 and 60-96 hrs) and individual forecast times from initialization to 240 hours in 12 hour increments. These plots are updated every 12 hours at roughly 0500 UTC and 1700 UTC.
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).