Alex Coffman - verification text

The past 12-24 hours has brought snow to much of the state of Indiana. The most significant snow in the state came in the form of the lake effect snow over far northwest Indiana, as steep lapse rates and convergence led to heavy snow bands along the lake. The models did a good job at predicting this band of snow developing and continuing through the overnight and morning hours. Throughout the past lastest runs, short-term mesoscale models had a westerly track of the LES. Initially affecting Lake and Porter Counties, it moved westward to affect Cook Co IL and Lake Co IN and that is what happened. Cook county generally had 4-10 inches of snow and Lake county has its highest total of 20" in Griffith (Lake Co)

As the cold air began to force its way southward into Indiana...frontogenesis aided in producing snow showers over parts of central Indiana, which brought Purdue and surrounding areas 1-3 inches of snow.

Further south over parts of south-eastern Indiana, a vorticity max passing directly overhead which helped enhance the snowfall in a small band in that part of the state. Some convective thunder snow was reported in that part of the state with increase 1"+ rates per hour. The models projected an enhanced area of precipitation there, however, models were not projecting the amounts of 6+" that did occur.


Map Designed by Gino Recchia.


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