BOSTON (CBS) – What a nice week…and break from the harsh winter conditions over the past few weeks. The high today reached 47 degrees in Boston but many surrounding suburbs touched or went slightly over 50..a feel of Spring! That feel will be gone this weekend as cold and snow return to New England.
A coldfront will slide through early tomorrow morning, the wind will swing into the NW and temps will begin a steady drop from the upper 30s to the lower 30s by the end of the day. More importantly, along the front a weak wave of low pressure will develop and spread light, wet snow into the area. This snow will slowly pivot thru the area during the day. Due to the recent warmth and sunshine, I do not see this snow accumulating well on roads but we’ll still see a coating to two inches through the day. The snow will then temporarily taper off for the first half of Saturday night as we wait for the main event to evolve.
A potent piece of mid-level energy will spin up a new area of low pressure out over the water to our east late Saturday night. This storm will develop quickly and explosively…the wind and snow field will expand back toward the Eastern MA coastline and snow will become steadier and a bit heavier by Sunday morning. Snow will taper off through midday leaving behind a new round of 2-4 inches for the coastline and 4-6+ inches for the Cape and Islands…west of 128/495 there won’t be much at all 0-2 inches. The timing of the offshore storm development is critical and amounts for Saturday night and Sunday may still need to be adjusted up or down.