BANGOR, Maine — Don’t put your shovels and plows away just yet. The National Weather Service forecast for Maine is calling for another round of snow on Saturday that is expected to drop as much as half a foot of snow in some areas.

A winter weather advisory will be in effect from 11 a.m. to 7 p.m. Saturday for parts of Somerset, Piscataquis and Penobscot counties.

Snow accumulations of 3 to 5 inches — and up to 6 inches in some spots — are possible, forecasters said.

The snow is expected to fall quickly, reducing visibility and making for tricky driving conditions.

In addition, a gale watch is in effect for coastal waters Saturday afternoon and evening, the weather service said. High winds are expected to result in hazardous wave conditions for small vessels.

But it doesn’t end there.

The weather service’s long-term forecast is calling for yet another arctic front across New England beginning Sunday, with temperatures expected to fall below -20 degrees by evening.

Arctic high pressure will continue to build over the region through Tuesday, setting the stage for a mid-week storm system that could bring significant precipitation to the state Wednesday into Thursday.