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February 2020

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[2020.02.04 AM] NWS Boston EM Briefing: Wintry Mix Thursday AM Commute Potential
by BOX Operations - NOAA Service Account 04 Feb '20

04 Feb '20

Good morning everyone. Here is an updated briefing on wintry weather that is expected to impact our region for the Thursday morning commute. Details still need to be ironed out on the timing of the precipitation change over. *Changes since the previous update:* System moving in a tad bit quicker than previously forecast. Onset time now around 9 PM Wednesday to 1 AM Thursday roughly from southwest to northeast. *Timing:* - Precipitation begins between 9 PM Wednesday to 1 AM Thursday. - Will start off as snow or a wintry mix - Sleet, freezing rain and rain will spread north from the south coast across the rest of southern New England toward the Thursday morning commute - Wintry mix will change over to rain from mid to late morning on Thursday - The wintry mix may linger across interior MA and northern CT into the early afternoon - Rain continues Thursday night *Impacts:* - Slick morning commute expected across southern New England *Potential Snow/Ice Accumulations: * - Snow accumulations of a dusting to 3 inches, with the greatest risk for snow in northern MA and the east slopes of the Berkshires - Ice accretion of a few hundredths up to one tenth of an inch possible. *Uncertainty: * - Along and southeast of the Boston to Providence corridor, the potential exists for a brief wintry mix at the onset but will likely be short lived with a change to rain. - Confidence is lower as to whether or not there is any snow at the onset, or if precipitation begins as just sleet and freezing rain. - The potential of exceeding one tenth of an inch of ice accretion is low at this time. Thank You 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>

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NWS Boston EM Briefing: Wintry Mix Thursday Morning Commute Potential
by BOX Operations - NOAA Service Account 03 Feb '20

03 Feb '20

Good afternoon everyone, We just wanted to give a heads up on the likelihood for a wintry mix to impact portions of our region during the Thursday morning commute. While specifics need to be ironed out, below is an outline with our current expectations. *What: * - Sleet and Freezing rain along with the potential for a period of snow at the onset. *Where: * - The potential exists for a brief period of snow/ice across the entire region. However, the concern for a prolonged period of wintry precipitation will be northwest of the Boston to Providence corridor especially across interior Massachusetts and northern Connecticut. *When: * - Precipitation starts between 1 and 7 AM Thursday morning. A wintry mix will change to rain by late Thursday morning across eastern MA/RI, but icing may continue into Thursday afternoon across portions of interior MA and northern CT. *Potential Snow/Ice Accumulations: * - Snow accumulations of a dusting to 3 inches with the greatest risk for snow in northern MA. Ice accretion of a few hundredths up to one quarter of an inch possible. *Uncertainty/Impacts: * - Confidence is high that precipitation begins as a wintry mix to the northwest of the Boston to Providence corridor with an impact to the Thursday morning commute. - Along and southeast of the Boston to Providence corridor, the potential exists for a brief wintry mix at the onset but will likely be short-lived with a change to rain. - Confidence is lower as to whether or not there is any snow at the onset or if precipitation begins as just sleet and freezing rain. Greatest risk for a few inches of snow will be across northern MA. - Icing may persist into Thursday afternoon across portions of interior MA & northern CT, but most locations should change to rain by early Thursday evening. - The potential of exceeding one quarter of an inch of ice accretion is rather low at this time. Thank You Meteorologist: Hayden Frank 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>

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