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Heavy snow and high winds have created blizzard conditions in northwest Indiana.

Lake County, Indiana declared a state of emergency with only emergency and law enforcement vehicles allowed on the roads.

Heavy snow continues in northwest parts of the state where snowfall has exceeded one foot in many location. Near blizzard conditions are occurring in many areas with low visibility and much blowing and drifting snow due to the strong winds.

Some motorists attempted to navigate through unplowed roads in near-whiteout conditions.

Still, others were helping neighbors and strangers with shovels.

The Indiana Dept of Transportation and the Indiana State Police have determined the following interstates are impassable the result of the ongoing winter snow storm:

• I-65 north and southbound from State Road 26 (172 mile marker) to U.S. 30 (253 mile marker); and

• I-80/94 east and westbound from U.S. 421 (34 mile marker) to the Illinois State Line (0 mile marker)

Governor Mike Pence has authorized all state government offices to remain closed on Monday. Essential personnel will report to work to ensure public safety and critical services are available.

“We want to ensure that our employees are safe and that Hoosiers have access to critical public services,” said Governor Pence said in a statement. “I am limiting the number of employees who must report to work on Monday to help keep people off the roads and out of the extreme cold, even while we make sure that Hoosiers have access to necessary government services.”

WEATHER UPDATES AT CHICAGO WEATHER CENTER BLOG