Snowfall expected tonight through Thursday will drop 4-12 inches in St. Lawrence Valley
Monday, March 12, 2018 - 11:59 am

Quiet weather is expected across the St. Lawrence Valley, but active weather returns tonight with a long duration of snowfall expected Tuesday through Thursday dropping 4-12 inches of the white stuff, according to the National Weather Service (NWS).

Coastal low pressure will bring a moderate snowfall to portions of the region on Tuesday, followed by additional widespread light snow Wednesday and Thursday associated with an upper trough tracking across the Northeast, forecasters say.

Accumulating snow will return the region starting later tonight and last through mid-week for many areas, NWS says.

The area of greatest impact will occur across the eastern Adirondacks of New York, when modest accumulations of 4 to 6 inches are expected, the service says. Lighter totals are expected in the St. Lawrence and Champlain Valleys during this period.

A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. Allow extra time if travel is necessary.

The forecast through the weekend is as follows:

Tuesday

Snow. High near 33. Northeast wind 3 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Snow. Low around 27. Northwest wind 5 to 7 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Wednesday

Snow. High near 33. West wind around 8 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Wednesday Night

Snow. Low around 25. West wind around 10 mph. Chance of precipitation is 80%.

Thursday

A 40 percent chance of snow showers. Cloudy, with a high near 34. West wind 9 to 11 mph.

Thursday Night

A 30 percent chance of snow showers. Mostly cloudy, with a low around 21. West wind around 9 mph.

Friday

Partly sunny, with a high near 32. West wind around 11 mph.

Friday Night

Partly cloudy, with a low around 18. West wind 6 to 9 mph.

Saturday

Mostly sunny, with a high near 36. West wind around 7 mph.

Saturday Night

Partly cloudy, with a low around 25. Southwest wind around 7 mph.

Sunday

A chance of rain and snow showers. Partly sunny, with a high near 41. Southwest wind around 7 mph. Chance of precipitation is 30%.