Updated at 3:30 p.m. Friday afternoon. Winter storm watch now extends through all of central Indiana and Illinois. Watch is in effect from Sunday morning through Monday morning. Several inches of snow is likely in this area.
Here is the latest snowfall forecast. The heaviest snow will be along the Interstate 70 corridor from Effingham all the way over to Richmond, Indiana. The gradient from light to heavy snowfall will be very tight, so amounts will drop off quickly on either side of the heaviest band. Locally higher amounts are possible.
Winds will pick up out of the northeast at up to 20-30 mph on Sunday afternoon and evening in central Indiana and Illinois, so low visibilities will make hazardous travel even more difficult. Be sure to check back to the blog for updates as we get new information.
Earlier post is below:
Over the weekend, low pressure will track to the south of the Tri-State and draw cold Canadian air down from the northwest while pumping Gulf moisture up and over the cold air. The result will be accumulating snow over much of central Indiana and Illinois—snow that will extend all the way down to the Ohio River, where temperatures will be right at or slightly below freezing. Here is a look at the forecast surface map for Sunday.
Based on the current projected path of the low, northern sections of the Tri-State have the highest probability of seeing 1-3" of snow by Sunday evening into early Monday morning. Here is a look at the HPC snow forecast for the period Sunday morning to Monday morning. Notice that areas along and north of the Ohio River have a 70-percent chance of seeing at least an inch of snow
Here is another chart showing the probability of 2" of snow.
As with all winter storms, snow accumulation is highly dependent on the track that the low takes and the temperature and timing of the arrival of the moisture. Of course, we'll be updating the blog as we get new information through the weekend. In the meantime, dust of your shovel and find your salt !
1115 Mt. Auburn Road
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