High pressure is forecast to drift east and north from the Adirondacks off the North American continent by tomorrow morning. Meanwhile, low over Minnesota now is forecast to move east and northeast and should be centered just north of Montreal, Canada by Wednesday morning. In doing so, the low will promote northward movement of a stalled frontal boundary to our south, thus becoming a warm front. In concert, these two weather systems will team up to produce an increase in cloud cover this afternoon and eventually a bit of light snow or flurries tonight. These systems don’t have access to much moisture so accumulations look to be negligible, say a coating to one inch by Wednesday morning.
As that low departs to our northeast tomorrow, drier air should build into the region and allow for developing afternoon sunshine. A weak cold front is forecast to graze the region Thursday. Other than some flurries, this system should have little impact on our sensible weather at the ground. Meanwhile, a strong storm is forecast to take shape over the mid-section of the country. It’s expected that this storm will tap into ocean moisture, and thus should have much more moisture than its predecessors. The exact track will have a large role as to what we see from this system come Friday. It’s early, however, preliminary indications suggest that accumulating snow is possible across CNY Friday.
Whatever happens Friday, a large area of high pressure will build into the Northeast to start the weekend. As the high moves off the coast later Sunday, our winds will turn into the south and we will begin to import milder air into central New York. In fact, by Monday we should be in the 40s. That means our next chance for precipitation Monday will be in the form of rain.