A winter storm warning for Jefferson, Lewis and Oswego counties is in effect through 10 p.m. Friday.

A winter storm warning for Jefferson, Lewis and Oswego counties is in effect through 10 p.m. Friday.

The NWS forecasts snow accumulations of 8 to 16 inches, with the greatest accumulations across the Tug Hill Plateau and western Adirondacks.

Winds gusting as high as 35 miles per hour are possible

Winds gusting as high as 35 miles per hour are possible

The second NWS warning is a lake effect snow warning which could dump an additional 8 to 14 inches of snow, with the greatest amounts across the higher terrain of the Tug Hill and western foothills of the Adirondacks.

The lake effect warning goes into effect at 1 a.m. Saturday and continues through 7 p.m. Monday.

St. Lawrence County’s winter storm warning goes into effect at 10 p.m. Thursday and continues through 1 p.m. Saturday.

The NWS says heavy snow is expected with total accumulations of 4 to 10 inches.

The NWS says heavy snow is expected with total accumulations of 4 to 10 inches.

There have already been a number of cancelations and delays.

There have already been a number of cancelations and delays.