From the National Weather Service:
Flood Watch National Weather Service Taunton MA 1149 AM EDT Wed Oct 25 2017 MAZ022>024-260000- /O.CON.KBOX.FF.A.0008.000000T0000Z-171026T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 1149 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... The Flash Flood Watch continues for * A portion of southeastern Massachusetts, including the following areas, Barnstable, Dukes, and Nantucket. * Until 8 PM EDT this evening * Periods of rain, moderate to heavy at times, will impact the region this afternoon and continue into the evening hours. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding in urban centers and other poor drainage areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.