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.
These images are generated by geostationary satellites orbiting 22,000 miles above the equator looking at the United States. These include visible, infrared and water vapor images. The images are updated once an hour at about 30 after the hour.