Little has changed from the previous briefing sent earlier this morning. A coastal storm passing southeast of Nantucket Monday will bring the potential for light icing across parts of the interior, strong winds near the coast, and minor coastal flooding to eastern Massachusetts.
Refer to the attached graphics. Here are the details:
Interior Light Icing:
Locations: Western and central Massachusetts and part of northern Connecticut, especially in the higher elevations from the east slopes of the Berkshires, Worcester Hills, and hills of Hartford and Tolland Counties.
Timing: 10 PM Sunday through 10 AM Monday
Amounts: Up to 1/10 inch of icing
Impact: Slippery travel
Confidence: High in light icing across Worcester Hills and east slopes of Berks. Light icing is also possible in the Pioneer and Merrimack Valleys in Massachusetts but temperatures may stay just above freezing in these locations.
Strong Winds:
Locations: The Immediate coastline especially Cape Cod and Nantucket.
Timing: 10 PM Sunday through 10 AM Monday
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: 5 PM Sunday through 10 AM Monday on the south coastal waters; 11 PM Sunday to 4 PM Monday on the eastern waters
Wind Gusts: NE 35 to 45 kt
Seas: 4 to 9 ft on the inner bays and sounds; 14 to 18 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 is unlikely that the storm surge exceeds 2.0 feet so any impacts are expected to be minor.
The next update will be sent early Sunday morning.