Low pressure off the coast of New England is forecast to rapidly strengthen as it heads towards the Canadian Maritimes, bringing snow to areas hit by last week’s blizzard. In fact, Winter Storm Warnings and Advisories are up for Boston area along with a Blizzard Warning in portions of Maine, where they’re expecting 5-10” of snow by tonight.
This low will affect us in CNY only indirectly. As high pressure builds in to our west while the coastal low strengthens, the pressure gradient over our area will increase and cause NW winds to build to 15-25+ mph. That will bring in a reinforcing shot of cold air for the second half of the weekend. Highs will mainly be in the teens, but those gusty winds will cause a chill factor in the single digits to near 0°.
With winds out of the northwest, lake effect snow will begin to organize. Lake Effect Snow Advisories are up for several counties, including the immediate Syracuse area. While snow showers are possible through the day, the greatest risk for squalls and reduced visibility will likely be in the afternoon and evening. Snow is expected to accumulate to 3-6” by Monday morning.
The shot of cold air for the weekend should begin to exit our region by Monday afternoon as high temperatures return to the mid or upper 20s…still below average but a 10 degree improvement upon Sunday. A storm system is forecast to take aim on the region Tuesday. Exactly how this storm track will have a large role as to what we see with regards to precipitation type. For now, we’ll call for rain and/or snow; however, we should have a better handle on what falls by Sunday or Monday. More snow showers and lake effect is possible behind the system for Wednesday.