LaPorte and St. Joseph counties will be under a winter storm watch beginning Friday night and lasting through Saturday night, according to the National Weather Service.

Heavy and blowing snow is possible, the NWS said, with wind gusts of 20 to 35 mph. 

Drivers should plan for difficult travel conditions, the weather service said. Total snow accumulations of 5 to 8 inches are possible, with localized heavier amounts expected. 

A Winter Storm Watch means there is potential for significant snow, sleet or ice accumulations that may impact travel, the NWS said. 

A dusting of snow overnight made for a slippery Thursday morning commute throughout Northwest Indiana.

Snow is expected to fall mainly before noon Saturday in Lake and Porter counties, while LaPorte County could see a transition to lake-effect snow flurries Saturday afternoon and evening.