We did expand the winter weather advisory to include all of our area just to the northwest of the Boston to Providence corridor. While some spotty freezing drizzle is possible this evening, there is a higher risk for pockets of light freezing rain/freezing drizzle after midnight and into Monday morning. Biggest concern is the Monday morning commute where untreated roads may be icy. Pockets of minor coastal flooding are still expected during the Monday afternoon high tide along the eastern MA coast, but impacts will just be some brief flooding of some typically vulnerable shoreline roads. Wind Advisories are also in effect for the Cape/Islands, but speeds will not be high enough to result in significant problems.
Interior Light Icing:
Locations: Western, central and interior northeast MA, as well as northern CT and northwest RI.
Timing: Some spotty freezing drizzle is possible later this evening. Greater risk for pockets of light freezing rain/freezing drizzle after midnight and into the Monday morning commute.
Amounts: Up to 1/10 inch of icing.
Impact: Slippery travel, impacting Monday AM commute.
Confidence: High.
Strong Winds:
Locations: Dukes and Nantucket Counties into Block Island, and Cape Cod.
Timing: 6 AM Monday through early Monday evening.
Sustained Wind: NE 25 to 35 mph.
Wind Gusts: NE 35 to 45 mph with a few gusts up to 50 mph possible.
Impact: Minor damage such as downed tree limbs. Perhaps Isolated power outages.
Confidence: High.
Marine Impacts:
Locations: Massachusetts and Rhode Island coastal waters
Timing: Tonight and Monday
Wind Gusts: NE 35 to 45 kt.
Seas: 4 to 9 ft on the inner bays and sounds; 13 to 17 ft offshore.
Confidence: High.
Minor Coastal Flooding:
Locations: Eastern Massachusetts coast
Timing: Monday afternoon high tide (3:10 PM at Boston and 4:17 PM on Nantucket)
Storm Surge: 1.5 to 2.0 feet
Inundation: Less than 1 foot above ground level
Impact: Some vulnerable shoreline roads may become temporarily impassable around high tide. Minor beach erosion is also possible.
Confidence: High. It remains unlikely that the storm surge exceeds 2.0 feet so any impacts are expected to be minor.
Updated storm total ice, maximum wind gust and maximum wave height graphics are attached, as well as an overview of issued hazards.