As another deep freeze settles into the region, officials warned motorists of hazardous road conditions expected for Monday's morning commute.
Indiana State Police said drifting snow could create whiteout conditions and warned motorists to expect longer commutes.
Lake, Porter, LaPorte, Newton and Jasper counties remained under a travel watch Sunday night, according to the Indiana Department of Transportation.
State police said if people have to travel Monday, they should adjust their speed on the road. Motorists are also encouraged to have a full tank of gas, food, water, a phone charger and warm clothes in case there are troubles with their car — or other vehicles — on the road.
Wind chills will dip to 30 to 45 degrees below zero early Monday and will linger in the area until Wednesday morning, according to the National Weather Service.
The expected high on Monday is 3 degrees below zero with the low of 17 degrees below zero, according to the National Weather Service. On Tuesday, the high is expected to be 1 degree with the low of minus 7.
A winter storm warning was also in effect until 6 a.m. Monday, which warned of snow showers and gusty winds that could create blizzard-like conditions. Meteorologist also warn weather conditions could lead to freezing or wet roadways.
Matt Friedlein, a meteorologist for the National Weather Service, said conditions are expected to stay dry after Sunday night until Thursday when forecasters are predicting a chance of light snow.
The Northern Indiana Commuter Transportation District said South Shore passengers should expect weather-related delays on trains between Michigan City and Chicago early this week. Prolonged subzero temperatures will strain mechanical and track systems.
From Monday to Wednesday, NICTD will temporarily bus passengers between South Bend and Michigan City as a precaution. Hudson Lake passengers are advised to drive to the Carroll Avenue Station in Michigan City.
Eastbound Train 401 and westbound Trains 422 and 424 will not be bused between South Bend and Michigan City.
The expected cold snap has prompted more than a dozen schools in Northwest Indiana to close or issue two-hour delays for Monday. For a full listing, visit www.nwi.com/closings.
According to the National Weather Service, this season already is shaping up to be one of the coldest with the average of 20.3 degrees from Dec. 1 to Jan. 25. The season so far is ranked as the 13th coldest winter since 1872.
There is no immediate relief in sight. Friedlein said the Chicago area won't see any above freezing temperatures at all this week. By Wednesday, temperatures will slowly rise to an expected high of 20 degrees.