Connecticut Weather Forecast: Advisories and Warnings Issued for Sunday's Storm

• UPDATE: Timeline of Snow and Ice in Connecticut Sunday: Morning Update

Here we go. The National Weather Service has issued new advisories and warnings for Sunday’s storm and the big change is that the immediate Connecticut coast is now under a “Winter Weather Advisory” and Hartford and Tolland counties have been upgraded to a “Winter Storm Warning.”

In a Saturday evening update, the weather service issued updated advisories and warnings for Sunday’s stormy weather. For coastal areas in Fairfield County snow and sleet may accumulate up to 1 inch Sunday along with a few hundredths of an inch of ice.

For coastal areas of New Haven, Middlesex and New London counties you’ll see 1 to 3 inches of snow and a few hundredths of an inch of ice, the weather service states.

And for areas inland in Fairfield, New Haven, Middlesex, and New London counties snow and ice will accumulate 3 to 6 inches and some sleet may mix in during the day on Sunday.

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Hartford and Tolland counties can expect 4 to 8 inches of snow accumulation. A wintry mix begins Sunday morning and the snow and sleet may mix with some rain during the afternoon and evening hours before turning back to snow again Sunday night. Winds will gust between 15 to 25 mph and an occasional gust up to 40 mph is possible too.

NBC Connecticut Meteorologist Ryan Hanrahan said on social media, "Here's our latest thinking on tomorrow's snow. This is a tough forecast but I think a lot of places away from the coast get about 6" of snow. Tomorrow afternoon and evening is going to be tough time to travel."

The precipitation begins early Sunday morning and continues through most of the day on Sunday.

ORIGINAL POST:

Let's call last night's "snow" the appetizer before the main course, which comes on Sunday in Connecticut. And yes for people living along the Connecticut shoreline you only ended up with a dusting Friday night while inland areas saw an inch or two of new snow.

There's some big changes on the way Sunday as the National Weather Service has already issued a "Winter Weather Advisory" for inland areas of Fairfield, New Haven, Middlesex, and New London counties. A "Winter Storm Watch" has been issued for Hartford and Tolland counties. A "Hazardous Weather Outlook" has been issued for the entire coast of Connecticut.

NBC Connecticut Meteorologist Ryan Hanrahan wrote Saturday morning that, "We have increased our snowfall forecast. High impact storm headed towards CT. The storm moves in tomorrow morning."

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NBC Connecticut Meteorologist Darren Sweeney added that, "Another significant winter storm is headed towards the state tomorrow. We have increased our snowfall totals. This storm will have numerous impacts."

Both Hanrahan and Sweeney said it's possible there may be school delays on Monday morning, depending on where you live. Connecticut could see more snow in the forecast on Thursday too, but it's far too soon to get into anything specific, the meteorologists cautioned.

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Timeline of Sunday's stormy weather and how much accumulation to expect via the National Weather Service:

The immediate Connecticut coast from Greenwich to New London: In the Hazardous Weather Outlook for the area, the weather service says, "there is the potential for high winds late Sunday night into Monday as strong northwest winds develop behind rapidly depending low pressure off the New England coast."

Sunday: Snow, freezing rain, and sleet likely before 8 am, then rain, snow, and sleet between 8 am and 3 pm, then rain and snow after 3pm. High near 37. Wind chill values between 20 and 30. East wind 9 to 11 mph. Chance of precipitation is 100%. Snow could accumulate 1-2 inches here along the coast.

Sunday Night: Rain likely before 7 pm, then rain and sleet likely between 7 pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 34. Wind chill values between 25 and 30. North wind 6 to 11 mph becoming west 12 to 17 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 60%.

Inland areas of Fairfield, New Haven, Middlesex, and New London counties: In the Winter Weather Advisory, the weather service states that snow and ice may accumulate 3 to 5 inches of snow with a trace of ice accumulation.

* Timing...Beginning late tonight, continuing Sunday and ending Sunday evening.

* Impacts...Hazardous/slippery travel due to snow covered roads.

* Temperatures...Upper 20s to the lower 30s.

* Visibilities...1/2SM or less at times in snow.

Hartford and Tolland counties: In the Winter Storm Watch, the National Weather Service says 4 to 8 inches of snow is expected to accumulate.

The National Weather Service has issued a Winter Storm Watch...which is in effect from Sunday morning through Monday evening.

* HAZARD TYPES...include moderate to heavy snow, as well as blowing snow.

* TIMING...Snow will move into the region Sunday morning, perhaps starting as either rain or a wintry mix. Heaviest snow is forecast beginning early Monday morning and persisting through the day, concluding into the evening hours.

* IMPACTS...Especially early Monday morning and through the day, moderate to heavy snow will make for reduced hazardous travel conditions with slick roadways and visibilities down to a quarter mile or less. Coupled with powerful northwest winds forecast will likely result in near white out conditions with blowing snow. Power outages are likely, especially for areas along the coast, due to the combination of winds and the weight of snow on tree limbs and power lines.

* WINDS...North 25 to 35 mph with gusts up to 55 mph.

* VISIBILITIES...One quarter mile or less at times.

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