From the WABI-TV5 & CW Forecast Center:
An arctic cold front along with an upper level disturbance will continue to bring flurries and snow showers to mostly northern parts of Maine this evening. After the cold front slips offshore a brisk northwest breeze will develop later this evening across our area and a chunk of the arctic airmass currently located just to the north and west of New England will slide into our region tonight. The combination of temps near zero and a gusty northwest breeze will drive the wind chill values as low as -30 up north and near -15 in the Bangor Region on south to the coastline. High pressure will bring Maine partly sunny skies tomorrow, but temps will remain rather cold as highs only reach the upper single numbers north and teens south.
An upper level trough and another strong arctic cold front will slip southeast into our region Saturday. A storm will likely develop along the arctic front as it slips well offshore Saturday but an inverted trough will likely form west of the developing storm somewhere over central or eastern Maine. If the inverted trough does develop a narrow band of heavy snow will likely develop right along the trough, with much lighter snow showers falling elsewhere across the Pine Tree State. The exact location of the trough is still not certain, but it appears it will likely form somewhere between the mid coast and Hancock County. There is the possibility that right along the trough well over a half of foot of snow may fall while only 30 miles away from the trough very little snow will accumulate.
Once the arctic front and storm system moves well off to our east a strong northwest breeze will usher an even colder airmass into New England for Saturday night and Sunday. Temps statewide will likely fall below zero Saturday night and the strong wind will drive the wind chill values down to dangerous levels. Despite some partial sunshine Sunday high temperatures will likely hold near zero up north and only reach the single numbers to near 10 south and once again a strong wind will make it feel much colder. The core of the arctic air will likely slide off to our east by Monday and temps will begin to creep back up to more seasonable levels.
A storm will likely be developing later Sunday near the Gulf Coast which will then begin to track northeast from there Monday. Most of the computer models pull the storm north just up to the west of New England Tuesday night into Wednesday, which would cause the precipitation to change from snow and mix to rain in our area, but there is still a chance that the storm will track just east of New England which would hold more cold air over Maine and cause more of the precipitation to fall as snow and ice. The forecast for later Friday night through Saturday evening is a tricky one so please stay tuned to the latest forecast from the WABI-TV and the CW.
Tonight: Evening flurries and snow showers then breezy and cold, with low temps in the range of -5 to +5.
Friday: Partly sunny, breezy and cold, with high temps in the upper single numbers and teens from north to south.
Saturday: Periods of snow or snow showers likely and becoming blustery, with high teens to low 20s.
Sunday: Partly sunny, blustery and bitterly cold, with high temps in the single numbers to low teens.
Monday: Partly sunny then increasing clouds late and high temps in the mid teens to low 20s.
Tuesday: Snow and mix changing to rain, with high temps in the mid 30s to low 40s.
WABI-TV5 & CW Meteorologist