Nantucket Hurricane & Storm Risk: What's Known, What Isn't

1938: The Regional Benchmark Storm, Without a Nantucket-Specific Number

The 1938 hurricane, commonly called the "Long Island Express" for the unusual forward speed - reported at roughly 60 mph - that let it outrun contemporary warning systems, is the historic benchmark storm for New England hurricane risk. It's extensively documented at the regional level: NOAA's Atlantic Oceanographic and Meteorological Laboratory has published both 75th- and 80th-anniversary retrospectives, the National Weather Service maintains a dedicated 1938 hurricane history page, and Mass.gov's own "Worst Massachusetts Hurricanes of the 20th Century" page treats it as the defining event of the century for the state.

What none of those sources provide is a Nantucket-specific wind reading, storm-tide height, or damage total - the most detailed regional accounts concentrate on Long Island and Connecticut, where the storm's track brought the worst of the destruction. Nantucket was within the storm's path, and it is reasonable to assume the island felt real effects from a Category 3 hurricane crossing New England waters, but that's an inference, not a sourced figure, and this page won't manufacture one or borrow a number from Long Island, Falmouth, or anywhere else and present it as Nantucket's own.

Hurricane Bob and Hurricane Henri: Named in Nantucket's Story, Not Detailed Here

Two more recent storms come up specifically in coverage of Nantucket and Martha's Vineyard's hurricane history: Hurricane Bob (1991) and Hurricane Henri (2021). Henri weakened before its eventual landfall farther west, but AccuWeather's retrospective coverage discusses it specifically in relation to Nantucket and Martha's Vineyard history - a sign these islands are part of how Henri gets remembered regionally, even without the storm delivering a direct island hit at full strength. Bob is more commonly cited across general New England hurricane retrospectives as one of the region's more significant modern-era storms. Neither is detailed here with an island-specific wind speed or damage figure, because none was confirmed for Nantucket specifically in research for this page - treat both as storms worth knowing by name, not as sourced Nantucket damage events.

Nor'easters: The Distinctive Winter Risk a Warm-Climate Buyer Won't Expect

This is the risk that actually separates Nantucket from most of this site's other markets. A buyer coming from a Gulf Coast or Southeast property is used to thinking about hurricane season - June through November - and treating winter as the quiet stretch. On Nantucket, winter is its own season of risk: nor'easters are powerful coastal storms that form and intensify specifically in the cold months, and this island, with open water on every side and no bridge to the mainland, sits directly in their path every year.

The most recent example is close at hand: in late February 2026, Winter Storm Hernando hit the island as a bomb cyclone, and the Town of Nantucket posted its own emergency newsflash - "Winter Storm Hernando: Blizzard Warning, Parking Ban, and Service Updates" - while Nantucket Current's coverage described thousands of island customers left without power. Storms like this aren't rare exceptions: search coverage also turns up an October 2021 nor'easter that CBS Boston reported battering the Cape and Islands with high winds and blowing snow, part of a wider New England event that CBS News reported cut power to hundreds of thousands of customers regionally. And in 2017, Patch reported Nantucket ferry service was canceled outright amid winds from post-tropical storm Jose - a concrete, direct example of exactly what a winter storm does to an island that depends entirely on boats to move people and supplies.

None of this is meant to overstate any single storm's Nantucket-specific numbers beyond what's cited above - these are drawn from outlet headlines and the town's own storm-update posts, not a full damage assessment. The pattern, though, is the real point: nor'easters hit this island every winter with enough regularity that ferry cancellations and power outages during a winter storm are a normal, expected consequence of living somewhere reachable only by water or air, not a freak event.

Ferry-Only Access: Why Storm Timing Matters More Here Than on a Bridge-Connected Coast

Whether the storm is a summer hurricane or a winter nor'easter, Nantucket's access model changes the math on evacuation and recovery. The Steamship Authority is the only ferry operator that carries vehicles to and from the island; Hy-Line Cruises runs passenger and light-freight service only, with no cars. That distinction matters even outside of storms - the Steamship Authority runs a formal vehicle-reservation program because summer slots are booked out well in advance - and it matters more during one: when a storm approaches, getting a car off the island, or getting emergency vehicles and repair crews on, depends on a finite number of ferry crossings and a weather window that a nor'easter or hurricane can close with little notice.

There's no equivalent to driving inland ahead of a storm here. A resident or owner watching a forecast has to plan around ferry schedules, not highway traffic, and a late-developing storm can suspend both Steamship Authority and Hy-Line service before a last-minute departure is possible.

Coastal Erosion Compounds the Storm Picture, Especially at Siasconset

Storms on Nantucket don't just bring wind and flooding - they actively reshape the coastline, and the clearest example is the eastern village of Siasconset ('Sconset), where a bluff has been eroding along Baxter Road for years. A geotextile-tube revetment installed to protect the bluff and the houses on it was ultimately removed after years of dispute over its effects on down-drift erosion, according to Boston.com's January 2023 reporting on the homeowners' group agreeing to take it down. The town's own "Baxter Road Alternative Access" planning effort and a 2025 academic paper in Frontiers in Climate both treat managed retreat as a live, current planning framework for that stretch of coast, not a hypothetical.

The best-known single relocation tied to this erosion is the Sankaty Head Lighthouse, generally reported as moved back from the eroding bluff in 2007 - a widely cited fact, though the exact date and distance moved are worth confirming against a Coast Guard or Nantucket Historical Association source before quoting specifics in a transaction. Separately, a federal FEMA Region I Coastal Erosion Study covering Nantucket County is dated September 3, 2019, and the Trustees of Reservations' State of the Coast Report has specifically warned that landmarks, homes, and landscapes here are threatened by accelerated flooding and erosion by 2050. A single storm - hurricane or nor'easter - can accelerate erosion that's already underway on a multi-year timeline, which is part of why flood-zone and erosion history matter as much as wind-speed history for a Nantucket property.

What This Means for a Buyer

The honest summary: Nantucket sits inside the same 1938-hurricane regional history as the rest of New England, without a sourced island-specific number attached to that storm, and it carries the same kind of modern hurricane-season exposure as nearby Cape Cod. What's genuinely distinctive here is the winter risk - nor'easters that arrive with real regularity, on an island where every evacuation, repair crew, and delivery of supplies has to cross open water or fly in - plus an active, well-documented erosion story at Siasconset that a storm can accelerate overnight.

None of this is a substitute for direct confirmation on a specific property. Before buying, check current FEMA flood-zone status and any erosion or setback restrictions directly with the Town of Nantucket, ask about the property's storm and power-outage history from an agent who works the island through winter as well as summer, and talk to a licensed Massachusetts insurance professional about windstorm and flood coverage - rates and availability on this island are their own specialized subject, and local emergency-management guidance changes as storms develop. Nothing on this page is emergency-management or insurance advice.