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Update: Winter Storm Warning


UPDATE:  National Weather Service has issued a Winter Storm Warning from midnight Monday night through Wednesday morning.  Our second major winter storm in a week is on its way.

As stated in the previous forecast, a deepening low pressure system is now moving from the southern plains to the northeast.  A second deepening low is traveling southeast from southern Canada, and the two will meet and interact over central and northern Indiana on Tuesday and Wednesday, bringing another major snowfall to the region.  The heaviest snow and worst conditions will be particularly along and north of I-70, though the entire region will get quite a bit of snow.  Snow is expected to begin early Tuesday morning, then continue through early Wednesday morning.  It will last the longest closer to the second low as it passes through northern Indiana, where snow doesn't taper off until Wednesday afternoon.  Additionally, winds of 25-35 MPH with higher gusts will cause significant blowing and drifting.  When combined with the snow already on the ground, which is as much as 10 inches in east central Indiana, this could produce waste-high snow drifts in some areas.

The greatest accumulations, now expected to be in the 9-12 inch range, will be north of a Lafayette to Richmond line, including Anderson, Muncie, Kokomo, Peru, and Monticello.  South of this line and north of a Terre Haute to Columbus line, 6-9 inches are expected.  This includes Crawfordsville, Indianapolis, Shelbyville, and Rushville.  Elsewhere, amounts of 4-7 inches are expected.

By Tuesday afternoon, travel will be impossible for most two wheel drive vehicles, and trecherous to four wheel drives.  Preparation should be completed by tonight, as once roads become hazardous, most counties will issue snow emergencies which will allow emergency travel only.  Blowing and drifting snow will reduce visibility to zero at times, and drifts are likely to close most rural roads, even for four wheel drives.


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