An aid to forecasting heavy snowfall episodes

A conceptual model has been devised and tested to demonstrate the importance of assigning critical thermal profiles to the warm conveyor belt when diagnosing and forecasting the possibility of heavy snowfall 06 in) events. Values of between +9°C to -f-12°C characterizing the ascending saturated air are highlighted as being critical to the precipitation physics accounting for the heavy snowfall. The corresponding mean temperatures for 700 mb, 600 mb, and 500 mb are -7°C, -15°C, and -23°C, respectively.