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*).

 

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850 hPa 00h 03h 06h 09h 12h 15h 18h 21h 24h 27h 30h 33h 36h 39h 42h 45h 48h 51h 54h 57h 60h
700 hPa 00h 03h 06h 09h 12h 15h 18h 21h 24h 27h 30h 33h 36h 39h 42h 45h 48h 51h 54h 57h 60h
600 hPa 00h 03h 06h 09h 12h 15h 18h 21h 24h 27h 30h 33h 36h 39h 42h 45h 48h 51h 54h 57h 60h




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850 hPa 00h 03h 06h 09h 12h 15h 18h 21h 24h 27h 30h 33h 36h 39h 42h 45h 48h 51h 54h 57h 60h
700 hPa 00h 03h 06h 09h 12h 15h 18h 21h 24h 27h 30h 33h 36h 39h 42h 45h 48h 51h 54h 57h 60h
600 hPa 00h 03h 06h 09h 12h 15h 18h 21h 24h 27h 30h 33h 36h 39h 42h 45h 48h 51h 54h 57h 60h

                  *ReferenceWetzel, 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.