After a VERY nice weekend weather-wise, the new work-week starts with some light snow (for some). This morning, a quick moving disturbance diving southeast across New England is producing scattered snow showers. Many communities haven't received much, if any snow, due to how dry the air is at the surface. However, at the shoreline snow reached the ground and coated up areas in and around Groton/New London. Any lingering snow will wind down or end by mid-morning. This afternoon, anticipate a mostly cloudy sky with highs in the lower to mid 40s.
With weak high pressure in control tomorrow, expect a mix of sun and clouds with highs back into the 50 to 55 degree range!
The big timeframe of interest is Wednesday into Thursday as a storm system that we've been forecasting since last week impacts Connecticut. By Wednesday morning, clouds will be building overhead as a developing area of low pressure strengthens over the Ohio Valley. This one could be rather potent with cold air and a strong northern jet merging with a moisture-laden southern jet. By noon on Wednesday, the storm will be entering New England with precipitation. As of right now, it appears that the storm will start out as rain for much of CT (the exception would be the far northwestern corner). That rain will be fairly steady during the afternoon and could also become rather heavy into the evening hours. Wednesday night, however, as colder air filters into the state expect a transition to snow that could and likely will accumulate --- this could be problematic for the Thursday morning commute.
Thursday afternoon, the storm is gone, but in its wake – it will be COLD and windy. Highs will only be in the mid to upper 20s. Thursday night temperatures drop to the lower teens and on Friday only rebound to the upper 30s under a mostly cloudy sky.
The weekend is a big one with St. Patrick's Day parades happening in Hartford and New Haven… Saturday, highs will be in the 40s with a slight chance for an isolated rain or snow shower (not a big deal). Sunday, highs will again be in the 40s under a mix of sun and clouds.
Make it a great week!
Meteorologist Mark Dixon