(UNDATED) - A strong winter storm will impact central Indiana Tuesday afternoon through Wednesday afternoon.
A low pressure system coming northeast from the Gulf of Mexico will travel through the Tennessee and Ohio valleys, bringing the potential for significant snow to central Indiana.
Counties affected include: Carroll, Warren, Tippecanoe, Clinton, Howard, Fountain, Montgomery, Boone, Tipton, Hamilton, Madison, Delaware, Randolph, Vermillion, Parke, Putnam, Hendricks, Marion, Hancock, Henry, Vigo, Clay, Owen, Morgan, Johnson, Shelby and Rush counties.
The main impact of the snow will be on roads, which may become impassable due to heavy snow and drifts.
The snowfall may measure between 5 to 9 inches, with the heaviest amounts currently forecast north of an Anderson-to-Crawfordsville line.
Blowing snow could reduce visibilities and cause significant drifts, contributing to an even greater travel hazard.
There remains some uncertainty as to the track of the low pressure system. A more westward track of the low would result in lower snow totals as more warm air would overspread the area.
The big question with this storm will be, how far north does the rain/snow line get? So while accumulations will be in the 5- to 9- inch range to the north, they quickly drop to a band of 2 to 5 inches for Bloomington to Columbus to Richmond.
The highest snowfall totals will likely be for places like Crawfordsville, Anderson and Tipton.
If the low tracks further east, colder temperatures would result in higher snow totals.
Behind this storm system we will see very cold temperatures settle in for the second half of the week with highs in the teens and lows in the single digits.
A Winter Storm Watch means there is a potential for significant snow, sleet or ice accumulations that may impact travel.
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