Expected slippery road conditions caused by snow and ice have led the National Weather Service to issue a winter weather advisory for St. Lawrence County.

The advisory, for the areas around South Colton, Star Lake, Ogdensburg, Potsdam, and Gouverneur, will be in place until 7 p.m. Friday.

Mixed precipitation expected. Total snow accumulations of 2 to 6 inches and localized ice accumulations of a light glaze to one tenth of an inch.

Drivers should plan on slippery road conditions. The hazardous conditions will impact this evening`s and Friday morning`s commute, the National Weather Service said.

Rain is expected overnight before becoming accumulating snow on Friday morning.

Drivers are advised to slow down and use caution while traveling and allow extra time if travel is necessary.

The National Weather Service forecast for the next few days is:

Tonight

Rain before 3am, then snow. Low around 32. Northeast wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Friday

Snow. High near 33. North wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Friday Night

Snow, mainly before 11pm. Low around 14. North wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Saturday

Partly sunny, with a high near 21. Northwest wind around 8 mph.

Saturday Night

Partly cloudy, with a low around 6. Northwest wind 3 to 6 mph.

Sunday

Sunny, with a high near 24. Calm wind becoming north around 6 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 7. Northeast wind 3 to 6 mph.

M.L.King Day

Mostly sunny, with a high near 29. Northeast wind 5 to 7 mph.

Monday Night

Mostly cloudy, with a low around 16. East wind around 5 mph becoming calm in the evening.

Tuesday

A 50 percent chance of snow showers. Mostly cloudy, with a high near 35. Calm wind becoming southwest around 6 mph in the afternoon.

Tuesday Night

A 50 percent chance of snow showers. Cloudy, with a low around 27. Southwest wind 6 to 8 mph.

Wednesday

Cloudy, with a high near 36. Southwest wind 6 to 8 mph.

Wednesday Night

Mostly cloudy, with a low around 24. Southwest wind around 5 mph becoming light and variable in the evening.

Thursday

Snow showers likely. Cloudy, with a high near 36. Light southeast wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 60%.