9pm Snowfall Update – 2/24/2011

The snow has been falling steady all evening in Jefferson County. I measured here at the office at 8:30pm and we had 6.5″ of snow. Here is a picture of the measurement.It looks like we will see one more heavy band of snow in the County before it finally tapers off. Final snowfall amounts will far exceed initial forecasts.This can be primarily contributed to the convective (thundersnow) nature of this system. The easiest way to explain this is to compare rainfall amounts and rates between a normal rain and a thunderstorm rain. This same type of effect basically caused extreme snowfall rates in the 2 inch per hour range.