11:45 PM Update. Snow showers are building over New York State and the latest Futurecast does give modest snowfall accumulation output for many towns in Connecticut; don't be surprised if you find a light fresh coating of snow tomorrow morning. Beyond that, remember to reset your clocks forward one hour!
We enjoyed a glorious late winter day, with strong March sunshine, only brief interludes with clouds and mild air. Highs today in many towns topped off in the lower-50s and a few areas saw their temperatures peak in the mid-50s. And now that we have had a taste of this splendor…it will be taken away. A cold front will pass through the state tonight and bring the chance for scattered snow showers after midnight. Off and on snow showers may leave a light coating on the ground by morning, requiring a quick brush if you have plans to make early morning errands or go to early services.
Before going to bed tonight, if your clock does not automatically reset itself for Daylight Saving Time, you need to "spring" your clock's time forward one hour. While remembering to complete this chore, this is also a good time replace the batteries in the smoke alarms and carbon monoxide detectors.
Tomorrow will be colder, thanks to the cold front. Perhaps beginning cloudy and breezy, lows in the morning will be in the 20s. Patchy ice is possible where Saturday snow melt refroze and possible slippery areas where snow showers left a coating of snow. As the day progresses, it will become breezy and stay colder, with highs generally in the upper 30s with a few lower-40s, especially near the Shoreline. With the front's departure and building high pressure, there will be more sun as the day progresses, as well.
More snow showers are possible Monday. The front that will have passed by the state tomorrow morning will return as a warm front on Monday and bring clouds and scattered snow showers during the morning and early afternoon. It is entirely possible that we might have areas of minor accumulations again Monday, especially in northern Connecticut and especially in the morning. As it looks now, any accumulation would be minor: under 1". By later afternoon, the sun will try to work through the clouds and the readings will reach into the lower-40s.
Tuesday will be milder, thanks to the warm front's passage. Highs will again reach into the upper-40s and low-50s, in a manner similar to Saturday. There will be a little more wind a little more cloud cover than what we experienced with the warmth Saturday, but the day should still be a fairly nice respite from the cold.
The cold will return Wednesday as a chance for a winter storm looms. Cooler air from the north will start to bleed into Connecticut from the north and northeast as a developing storm system approaches New England from the southwest. The circulation into the storm will help draw the cold air into the region through the morning, likely suppressing the temperatures from reaching past 40°. At the same time, the storm will move closer and start to push precipitation into New England by afternoon. Of course, the details are not clear yet. The models are still not showing the consistency a confident forecast requires. What they do show is that we will likely have a storm nearby later Wednesday and Thursday morning that could bring a wintry mix during that period. Some model runs are colder, showing a more "snowy" scenario, whereas other models do pull in enough warm air that a precipitation evolution of a wintry mix to plain rain, then snow would occur. Yet, one other model early today showed the storm pulling out to sea without affecting New England at all. Right now, my inclination is this: we will likely see a storm with wintry precipitation mid-week, so the situation does bear watching.
Once the storm departs -- regardless if we get a direct effect – colder air will come behind, offering highs in the low-30s and lows in the teens Thursday. It will also be windy in the wake of the storm, making Thursday aggravatingly cold for a March day. Weak high pressure will build into the region in Southern New England as a weak low pressure system moves across northern New England. The end result will be filtered sunshine and moderating temperatures: upper-30s Friday and 40s Saturday.
Hope you are enjoying your weekend!
Meteorologist Mike Cameron