Moderate to heavy snow has been falling in Cedar Falls this morning. It was been literally pouring snow due to the convection embedded in the precipitation. So far I have heard one crack of thunder (see post below). The radar image above is showing the precipitation intensity. The green areas are the heaviest bands of snow and are quite likely associated with the convection. The heavier snow bands are producing snowfall rates of up to 3 inches per hour.
The Weather Briefing Blog