Metro Boston, North Shore and Metro West: Saturday began with very cold temperatures and brilliant sunshine. As the day wore on temperatures recovered well into the 20s during the afternoon as the sun slowly faded behind clouds through the mid to late afternoon hours. This was caused by a weak disturbance in our vicinity that was moving out to sea bringing the increase in clouds but no precipitation. The clouds hung in for the balance of the overnight which helped to keep the mercury from plummeting last night.
Sunday we wake to temperatures some 10 degrees higher from those of yesterday morning. The high pressure system that has been responsible for the dry conditions of late slowly departs as another disturbance approaches southern New England. This system will be a bit more robust than yesterdays weak disturbance and as a result we can expect some snow showers or even a period of steady light snow tonight into early Monday morning. Also, there are snow showers and flurries lingering just offshore this morning and a few of those will skirt the coastline and parts of interior Essex County from time to time today. At 7 am this morning while it was partly cloudy in Boston light snow was falling in Beverly and Lawrence. That will give you are sampling of the changeable skies expected today. Skies are going to be variable today with splashes of sun at times to mostly cloudy conditions with flurries at times.
As we mentioned here yesterday morning snowfall amounts late tonight into Monday morning are only expected to be a dusting to 2 inches with the possibility of a few localized 3 inch totals closer to the coast, especially inside of Route 128/95. There is a chance of heavier snow bands along the north shore coastline and if it occurs there could be around 4 inches right along the coast of Essex County.
The snow winds down around daybreak Monday, followed by partially clearing skies as colder arctic air begins to overspread the region. With that said expect more below normal temperatures through at least mid week. Monday night and Tuesday night will see substantially colder readings. High pressure builds in to give us dry weather through Wednesday.
A coastal storm could impact the area Thursday, perhaps even holding off until later at night. Models have pushed the timing of this event back as originally it was thought to begin late Wednesday night or early Thursday. Snow across the interior and a wintry mix to rain near the coast is possible, but a word of caution, a near miss or complete miss is still an outlier here. Stay tuned.
72 Hour Outlook:
Sunday: Variable cloudiness. Flurries and snow showers closer to the coast mixed with breaks of sunshine. High temperatures in the upper 20s to 30 degrees. Light north to northeast winds.
Sunday night: Snow showers transitioning to light snow. Lows in the upper teens inland to low 20s along the coast. Light south winds turning northwest late.
Monday: Early clouds erode, followed by a partly to mostly sunny day. Highs around 30. West to northwest winds 8 to 15 mph.
Monday night: Turning much colder with a few clouds around. Lows near 10 inland to the upper teens on the coast. Northwest winds 10 to 15 mph.
Tuesday and Tuesday night: Continued below normal cold. Mostly clear skies, highs in the low to mid 20s. Lows zero to 5 above interior to around 10 along the coast.