From the National Weather Service in Boston:
In the short term, there could be some spotty light freezing rain or freezing drizzle in the higher elevations above 500 ft. in MA tonight.
A significant coastal storm will bring a variety of nasty weather to our area Monday into early Tuesday. The brunt of the storm will be Monday night.
Damaging wind gusts to 60+ mph are expected on Cape Cod and the Islands...and possibly the rest of east coastal MA (especially Plymouth County and Cape Ann).
Heavy rainfall, amounting to 2 to 3 inches, is forecast for eastern MA and across RI. This will cause localized urban flooding and may cause some small streams to rise quickly.
We are becoming increasingly concerned about the potential for significant ice buildup in northern and western MA. In the slopes of the Berkshires and northern Worcester County, we are now forecasting 0.25" to 0.5" of freezing rain accretion on trees and power lines. This is borderline Ice Storm Warning criteria. There will also be a bunch of sleet and a some snow (up 1 to 2 inches) in addition to the freezing rain in those areas.
Minor coastal flooding is expected on the MA and RI coasts at high tide Monday evening and in northeast MA Tue. morning. We cannot rule out an isolated pocket of moderate coastal flooding, particularly around Nantucket Monday evening and Newburyport to Plum Island Tue. morning.
Upated High Wind Warning from National Weather Service:
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TAUNTON MA 449 PM EST SUN JAN 22 2017 MAZ022>024-RIZ008-230600- /O.CON.KBOX.HW.W.0001.170123T1400Z-170124T1100Z/ BARNSTABLE MA-DUKES MA-NANTUCKET MA-BLOCK ISLAND RI- INCLUDING THE CITIES OF...CHATHAM...FALMOUTH...PROVINCETOWN... VINEYARD HAVEN...NANTUCKET...BLOCK ISLAND 449 PM EST SUN JAN 22 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM MONDAY TO 6 AM EST TUESDAY... * LOCATION...CAPE COD...MARTHAS VINEYARD...NANTUCKET...AND BLOCK ISLAND. * WINDS...EAST 30 TO 40 MPH WITH GUSTS UP TO 65 MPH. STRONGEST WIND MONDAY NIGHT INTO EARLY TUESDAY MORNING. * IMPACTS...STRONG EAST WINDS WILL BE CAPABLE OF DOWNING TREES AND POWER LINES MONDAY INTO EARLY TUESDAY MORNING. THE WINDS MAY ALSO CAUSE PROPERTY DAMAGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING IS ISSUED WHEN SUSTAINED WINDS OF 40 MPH ARE EXPECTED FOR AT LEAST ONE HOUR...WITH GUSTS OF 58 MPH OR GREATER AT ANY TIME. DAMAGE TO TREES...POWER LINES...AND PROPERTY ARE POSSIBLE WITH WINDS OF THIS MAGNITUDE. POWER OUTAGES ARE LIKELY. TAKE ACTION TO SECURE LOOSE OUTDOOR OBJECTS.