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STATE WIDE–You should prepare for a significant winter storm in Indianapolis and points north, said National Weather Service Meteorologist Mike Ryan, in a Tuesday afternoon briefing. He said forecasters now expect the air to get colder faster, pushing the threat for freezing rain further south.

“We now have very high confidence in a dangerous, high-impact winter storm,” said Ryan. “We also do have confidence in a potentially record-breaking snowfall north of Indianapolis.”

LISTEN The NWS update on the winter storm

Ryan and the NWS team predicted snowfall as high as a foot in the Indianapolis Metro area, and areas north could get up to 18 inches.

“Our highest amounts are expected to be in the I-74 corridor from near Danville, Illinois to Crawfordsville and then points northeast: Through Lafayette, Delphi, Kokomo, Tipton, Frankfort, northern Madison County.”

Ryan stressed that impacts to life and property include difficult to near-impossible driving conditions into Thursday.

“The trends we’ve seen over the last day is a gradual colder trend, so the risks for icing and sleet have shifted further south across the area,” said Ryan. “Any ice impacts are expected to be largely south of the Interstate 70 corridor, and really some of the most significant impacts at this point, may end up being in the Vincennes to Seymour corridor and south towards the river.”

But, Ryan said the central part of the state may still get some ice before the precipitation changes over to snow Tuesday night and Wednesday morning.