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*).
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 |
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 |
*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.