GFS dProg/dT IVT Difference Maps

Plot Description: Difference in Vertically Integrated Water Vapor Transport (IVT) from previous GFS Forecasts model runs. Difference in IVT is shown for locations where either GFS model run IVT is greater than or equal to 200 kg m^-1 s^-1. Contours indicate the IVT from the most recent GFS run. Positive values (green-blue) indicate that the most recent GFS is higher than the old GFS run.