John Farley
Supporter
As a series of disturbances rotated around the strong upper low over the Great Lakes Monday, several waves of convection occurred in the cold air over Illinois. Lots of small hail reports in the central and northern part of the state. Here in the southwest part of the state, the convection was less intense, but the fact that it occurred in relatively clear air near sunset made it rather photogenic. At times, the setting sun illuminating the precipitation under the cells (which was snow about halfway to the ground) and the accompanying rainbows where it was rain closer to the ground made them even more photogenic:
More discussion and photos at http://www.johnefarley.com/wx42009.htm
More discussion and photos at http://www.johnefarley.com/wx42009.htm