Snow Accumulation Estimates Rise For Sunday: Here's How Much To Expect Now

New Update this morning: Snow Accumulation Estimates Increase Again: Here Are The Latest Numbers

Original story: Snow accumulation estimates are rising across Connecticut and the National Weather Service has issued a winter weather advisory for the entire state on Sunday.

First, the weather service said that areas of black ice are possible Saturday night.

"Roads remain wet from earlier precipitation, and with light winds and temperatures falling into the 20s and lower 30s, areas of black ice may develop. Motorists and pedestrians should use extra caution. Reduce speed, allow extra time, and be prepared for slippery travel.

A winter weather advisory is in effect for all of Connecticut from Sunday morning until Sunday night.

"Snow expected. Total snow accumulations between 2 and 4 inches," the weather service said concerning the entire state.

Snow is expected to begin around 9 a.m. Sunday and continue through Sunday night.

"A new Winter Weather Advisory has been issued for Sunday into Sunday night covering eastern Massachusetts, Rhode Island, and all of Connecticut," the weather service said. "Snow is expected to begin Sunday morning or afternoon, with the heaviest accumulation occurring late Sunday afternoon and evening. This is primarily a coastal storm, with the greatest impacts in southeast Massachusetts and Rhode Island. Precipitation will end after midnight."

Here are the forecast details for southern Connecticut via the National Weather Service:

Tonight: A 30 percent chance of snow, mainly after 4am. Mostly cloudy, with a steady temperature around 32. West wind around 5 mph becoming calm in the evening.

Sunday: Periods of snow, mainly after 7am. High near 34. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Sunday Night: A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 22. Light and variable wind.

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M.L.King Day: Mostly sunny, with a high near 33. Wind chill values between 15 and 20. Southwest wind 5 to 13 mph.

Monday Night: Partly cloudy, with a low around 16. West wind around 9 mph, with gusts as high as 20 mph.

Tuesday: Mostly sunny, with a high near 24.

Tuesday Night: Mostly clear, with a low around 12.

Wednesday: Mostly sunny, with a high near 35.

Wednesday Night: Mostly cloudy, with a low around 27.

Thursday: Partly sunny, with a high near 37.

Thursday Night: Partly cloudy, with a low around 18.

Friday: Mostly sunny, with a high near 31.

Friday Night: Partly cloudy, with a low around 21.

Saturday: Partly sunny, with a high near 32.

Here are the forecast details for northern Connecticut via the National Weather Service:

Sunday: Snow likely, mainly after 10am. Cloudy, with a high near 36. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Sunday Night: Snow likely, mainly before 2am. Mostly cloudy, with a low around 20. North wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

M.L.King Day: Mostly sunny, with a high near 31. Light southwest wind increasing to 8 to 13 mph in the morning.

Monday Night: Partly cloudy, with a low around 14. Southwest wind around 9 mph.

Tuesday: Mostly sunny, with a high near 23. West wind 7 to 10 mph, with gusts as high as 20 mph.

Tuesday Night: Mostly clear, with a low around 7. Southwest wind 3 to 6 mph.

Wednesday: Mostly sunny, with a high near 31. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

Wednesday Night: Mostly cloudy, with a low around 23. South wind around 8 mph.

Thursday: Mostly cloudy, with a high near 36. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

Thursday Night: Partly cloudy, with a low around 14. West wind around 7 mph.

Friday: Mostly sunny, with a high near 27. West wind 6 to 9 mph.

Friday Night: Mostly cloudy, with a low around 16. Southwest wind around 7 mph.

Saturday: Partly sunny, with a high near 29. West wind 6 to 8 mph.