The National Weather Services has a winter-weather advisory for Boston and other surrounding communities in effect from midnight to 6 a.m. Saturday morning.

The storm could dump another 3 to 6 inches of snow across the city, which is still trying to dig itself out of more than two feet of snow handed down by the blizzard that struck earlier in the week. The white stuff is expected to start falling at or a little after midnight Thursday night and continue into Friday night.

The forecast suggests heaviest snowfall is likely to occur Friday evening and Friday night. Wind gusts up to 30 mph could result in blowing snow, leading poor travel visibility.

Slick Friday and Saturday morning conditions could bring accidents on city streets and highways to a slow creep. Those who plan on traveling should give themselves any early start.

A winter storm warning has been issued for Boston’s neighboring cities – Somerville and Cambridge – also in effect from midnight to Saturday morning. Between 4 to 8 inches of snow is expected in both cities.

Image of Somerville during Winter Storm Nemo via Flickr User Darcy (CC BY 2.0)