Good morning, Please find a briefing attached regarding the potential for heavy rainfall and urban/poor drainage flooding today and tonight. There has been a significant trend upwards in the expected rainfall from today/tonight's system over the last 12-24 hours. Widespread rain totals of 1-3" are likely, with isolated amounts of up to 4" possible across the CT River Valley. A secondary local maximum of precipitation is possible across southeastern Massachusetts and southern Rhode Island, though confidence is lower in maximum rain totals in this region. While rain will fall over a 12 hour period, downpours and isolated thunderstorms are possible; though the threat for thunder is isolated to the south coast and southeastern Massachusetts. Kind regards, Kristie Smith and Andrew Loconto 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>