Forecasting Snow over the Upper Midwest
            MM5 Forecast "Ingredients" Maps

These maps will be created during the winter season to aid in the forecasting of snowfall over the upper Midwest. The ingredients displayed in these maps help a forecaster to identify the role each ingredient plays in the model-generated precipitation forecast and can aid in identifying areas of potentially convective snowfall.  Please follow this link for more information about the methodology (or see reference*).

The 00 maps were not be updated
This update at 01:15 AM CDT, Tue 04/22/03

These are the 1200 UTC maps for 04/22/03
1200 UTC Maps updated at 12:49 PM CDT, Tue 04/22/03

                  *Reference:  Wetzel, S.W., and J.E. Martin, 2001: An operational ingredients-based methodology for forecasting
mid-latitude winter season precipitation. Weather and Forecasting, 16, 156-167.