Good morning, Initial snows transitioning to a wintry mix of mostly sleet with some freezing rain across the interior, while transitioning to rain along the coast, is forecast for midday Tuesday through early Wednesday morning. Please see the attached slides conveying the anticipated threats while details concerning impacts and uncertainty are provided below. Please note, the timing of precip type graphic is an animation. *What / Where / When ... * - Onset snow transitioning to a wintry mix of mostly sleet with some freezing rain across interior Southern New England, transitioning to rain along the coast. - Beginning late morning to midday Tuesday, continuing through early Wednesday morning. - Biggest concern is impacts for the Tuesday afternoon into evening commute, perhaps lingering into the Wednesday morning commute. Travel headaches with untreated surfaces becoming slick ... reductions in visibility as a result of snow. *Uncertainty ... * - A first guess storm total snow and storm total ice graphic are attached, as well as a rough timing of winter weather outcomes. - However, the forecast beyond 48 hours, there is still some uncertainty as to specific outcomes and impacts for any particular location, especially with regards to transition timing of precipitation-types. - While widespread advisory-level impacts are forecast for most of Southern New England presently, with the threat of warning-level impacts for N/W areas of MA, the latest suite of forecast guidance has trended warmer. - If this warm trend continues, then impacts could be potentially less for particular areas. - Thus no headlines were issued with this latest forecast given uncertainty and lower forecast confidence. We will continue to issue briefings leading up to the event with the latest forecast information. Should you have any questions, comments and/or concerns, please don't hesitate to reach out to us. Respectfully, Benjamin Sipprell Meteorologist NWS Boston / Norton If you have any questions or would like more information, don't hesitate to contact us via this email address, on NWSChat <https://nwschat.weather.gov/>, or at the following: National Weather Service Boston/Norton, MA 46 Commerce Way Norton, MA 02766 508.622.3280 Website <http://www.weather.gov/boston> | Facebook <http://www.facebook.com/NWSBoston> | Twitter <http://www.twitter.com/NWSBoston>
