CAPE COD, MASSACHUSETTS — A big coastal storm is beginning to strengthen well offshore, and parts of New England, Long Island, and a large stretch of the Atlantic shoreline are set to take a significant hit.
The latest National Weather Service wind gust swath shows gusts of 60+ mph around Cape Cod and Nantucket, with isolated gusts near 70 mph possible. At sea, widespread large waves are expected early Saturday, with offshore wave heights reaching as high as roughly 23 feet, while the Washington, D.C. area looks to mostly miss out on the storm’s worst impacts.
Cape Cod and the Islands: Facing the Strongest Gusts
The most intense winds are forecast around Cape Cod, Nantucket, and Martha’s Vineyard, where the gust swath shows values of 63 to 69 mph in the dark red zone. That places the outer Cape and the islands directly in line with the storm’s most powerful wind field.
Gusts of this strength can:
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Snap large tree limbs
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Topple weaker trees
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Bring down power lines
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Create dangerous driving conditions
With trees still holding their leaves in late September, the risk of wind damage and power outages is higher than it would be in winter.
Coastal residents should also expect rough, windblown conditions along exposed beaches, harbors, and causeways throughout the height of the storm.
50+ MPH Gusts Target Rhode Island, Southeastern Massachusetts, and Eastern Long Island
Just west of the Cape, a band of 50+ mph gusts extends across:
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The Rhode Island coastline
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Southeastern Massachusetts
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The eastern end of Long Island
Values in the mid to upper 50s show up near Newport and the South Shore region.
Closer to Boston, gusts in the mid-40s are indicated along the coast, while much of Connecticut falls in the 30s, with a few spots near 40 mph along the shoreline.
These winds are strong enough to bring down tree branches and cause scattered outages, especially in coastal towns with dense tree cover.
30 to 40 MPH Winds Along the Jersey Shore and New York City
Farther south, the New Jersey coastline and New York City fall within a 30 to 40 mph gust zone. Communities along the Jersey Shore can expect breezy to windy conditions, particularly near the beaches and barrier islands.
While these winds are weaker than those in New England, they can still:
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Knock down small branches
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Blow around loose outdoor items
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Cause isolated power interruptions
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Create hazardous driving conditions on exposed roadways
D.C. Area Mostly Misses Out as Interior Stays Breezy
The Washington, D.C. region, along with Maryland and interior Pennsylvania, looks to largely escape the storm’s main impacts. Gusts in these areas are mostly in the 20s, falling into the 25+ mph category on the gust map.
Interior upstate New York, Vermont, New Hampshire, and much of Maine also show gusts mostly in the teens to 20s, with slightly stronger winds along the Maine coast in the low 30s.
Widespread Large Waves Early Saturday Along the Atlantic Shore
The storm’s impact on the ocean may be just as notable as its winds. A wave forecast for early Saturday shows a massive area of large waves stretching from waters south of New England down past the New Jersey and Delmarva coastline toward the Outer Banks of North Carolina.
Wave height breakdown:
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Offshore maximum: Around 22.9 feet (20-25 foot range)
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Closer to shore: Wave heights in the teens along parts of Rhode Island, Long Island, and Jersey Shore coastline
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Coverage: Massive area from south of New England to Outer Banks
Winds pushing waves toward land from the east and northeast will raise the risk of:
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Coastal flooding
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Beach erosion
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Dangerous rip currents
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High surf
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Especially dangerous during high tide cycles
What Coastal Residents Should Expect
Coastal flooding:
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Minor to moderate flooding in vulnerable spots
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Low-lying roads may become impassable
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Marinas and waterfront neighborhoods at highest risk
Beach erosion:
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Dunes could be damaged or washed away
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Shoreline structures may take a beating
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Most exposed stretches face greatest risk
Marine hazards:
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Boaters should stay in port—seas offshore will be extremely dangerous
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Beachgoers should stay out of the water entirely
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Rip currents and powerful waves can overwhelm even strong swimmers
How to Prepare Before the Storm Peaks
Before the strongest winds arrive:
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Charge phones, portable batteries, and flashlights
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Secure patio furniture, trash cans, grills, and decorations that could become airborne
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Move vehicles away from large trees
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Avoid parking in flood-prone areas near the water
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Fill prescriptions and stock up on essentials
If power goes out:
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Never run a generator indoors or near open windows (carbon monoxide risk)
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Use flashlights instead of candles (fire hazard)
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Keep refrigerator and freezer doors closed to preserve food
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Have a battery-powered weather radio available
Safety reminders:
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Stay away from downed power lines and report them to your utility immediately
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Assume all downed wires are live
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Drivers should use caution on coastal and tree-lined roads
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Watch for fallen limbs and standing water that can appear with little warning
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Never drive through flooded roadways
Bottom Line
This is a significant coastal storm with the potential for widespread impacts across New England, Long Island, and the Mid-Atlantic coast. Cape Cod and the islands face the greatest risk with 60-70 mph gusts, but communities from Rhode Island to the Jersey Shore should also prepare for strong winds, large waves, and possible power outages.
The storm peaks early Saturday. Use Friday to prepare, stay informed with the latest forecasts, and keep safety as your top priority.
