Yarmouth Hurricane & Storm Risk: What's Regional vs. Town-Specific

The Confirmed Gap: No Yarmouth-Specific Figures for 1938, Carol, or Bob

This is worth stating plainly rather than glossing over: no source found in this research - across two independent research passes - attaches a specific damage figure, wind reading, or storm-surge number to Yarmouth for the 1938 Hurricane, Hurricane Carol, or Hurricane Bob. That's true of Yarmouth Port on the bay side and of West and South Yarmouth on the sound side alike. What exists instead is generic Cape Cod-wide and Massachusetts-wide coverage of those three storms - real, well-documented history, but regional history, not a Yarmouth-specific account.

That gap shouldn't be read as evidence Yarmouth was spared. An absence of a documented, town-specific figure is not the same as proof of no damage - it just means the specific record wasn't found in this research. Given Yarmouth's frontage on both Cape Cod Bay and Nantucket Sound, it would be reasonable to assume all three storms affected the town in some way. But reasonable inference isn't a sourced number, and this page won't manufacture one just to sound more authoritative than the record actually supports.

The Regional Benchmark Storms: 1938, Carol and Edna, and Bob (Cape-Wide Context)

What follows is regional context only - drawn from Cape Cod-wide sources, not Yarmouth-specific ones - included because it's the closest documented history to what Yarmouth's shoreline experienced, even without a town-specific figure to attach to it. The 1938 Hurricane, often called the "Long Island Express," made landfall on September 21, 1938 as a Category 3 storm. Blue Hill Observatory recorded 121 mph sustained winds with gusts to 186 mph, and storm tides ran 18 to 25 feet from New London, Connecticut east through Cape Cod; parts of Falmouth sat under 8 feet of water. Massachusetts alone recorded 99 deaths, and Southern New England as a whole (Massachusetts, Rhode Island, and Connecticut) recorded 564 deaths by the National Weather Service's count - both regional figures, not Yarmouth-specific ones.

Hurricane Carol struck in late August 1954 and caused serious, broad devastation from eastern Connecticut across to Cape Cod. Less than two weeks later, Hurricane Edna followed nearly the same track, producing 120 mph gusts on Martha's Vineyard and severe flooding across the Cape and Islands - flooding made worse in places Carol had already stripped of protective beach and dune material. As with 1938, no Yarmouth-specific figure for either 1954 storm turned up in this research; the documentation describes the wider region, not a Yarmouth harbor, beach, or neighborhood.

Hurricane Bob made landfall in Rhode Island on August 19, 1991 as a Category 2 storm and is the best-documented of the three at the regional level. Provincetown recorded 100 mph sustained winds, with an unofficial 125 mph gust in the Brewster/North Truro area; storm surge peaked at roughly 5.8 feet in Buzzards Bay and Woods Hole. Massachusetts sustained over $1 billion in damage and one death, and more than 500,000 customers lost power across the state, including all of Cape Cod, with some areas out for two weeks or more. Those are Cape-wide and Massachusetts-wide totals - not a confirmed Yarmouth number, even though it's reasonable to assume Bob caused real local effects given the town's Nantucket Sound and Cape Cod Bay frontage.

Two Coastlines, Two Exposure Profiles: Yarmouth Port's Bay Side vs. West and South Yarmouth's Sound Side

Yarmouth is unusual among Cape towns in having meaningfully different shorelines on two different bodies of water, and that distinction matters for thinking about storm exposure even without town-specific damage figures to cite. Yarmouth Port, the northernmost village, faces Cape Cod Bay along historic Route 6A. Bay-facing shorelines on the Cape have generally been described as more sheltered from the worst of hurricane storm surge than sound-facing or open-ocean shorelines, owing to the more enclosed geometry of Cape Cod Bay and its different relationship to typical hurricane tracks.

West Yarmouth and South Yarmouth, by contrast, face Nantucket Sound - open water more directly exposed to the tracks that most Atlantic hurricanes affecting New England have historically followed, and more exposed to storm surge as a result. This is a general, structural difference in exposure, not a claim backed by a Yarmouth-specific storm-surge measurement - no such measurement was found for either side of town in this research. It's offered here as a reasonable way to think about relative risk across Yarmouth's villages, not as a substitute for a current, property-specific flood-zone determination.

Lewis Bay and Bass River: Low-Lying Tidal Areas Worth Watching

Two features of Yarmouth's geography are worth naming specifically as areas of potential storm-surge vulnerability, even though no flood-depth or surge-height figures specific to either one were found in this research. Lewis Bay, whose watershed lies entirely within Barnstable and Yarmouth, is a low-lying tidal embayment on the town's southern, sound-facing side. Bass River, commonly described locally as one of the longer tidal rivers on the eastern seaboard (a claim this page treats as celebrated local lore rather than an authoritatively sourced superlative), runs inland from the sound and separates South Yarmouth from neighboring Dennis.

Low-lying tidal areas like these are the kind of terrain that's generally more susceptible to storm-surge flooding during a hurricane or strong nor'easter than higher, more sheltered ground - a structural observation, not a specific prediction. No source in this research attaches a flood-depth number, a surge height, or a historical damage account to Lewis Bay or Bass River specifically. Anyone weighing a purchase near either one should treat that as reason to check current FEMA flood-zone maps for the exact parcel, not as reason to assume either area carries a known, quantified risk level.

Active Planning Today: The Coastal Bluffs Toolkit and the 2025 Hazard Mitigation Plan Update

The absence of historical damage figures doesn't mean Yarmouth is passive about storm and coastal risk today - the opposite is true, and it's worth stating clearly. The town published an August 2025 "Coastal Bluffs" resident toolkit, aimed at giving property owners along Yarmouth's bluff areas practical guidance on erosion and storm-related risk.

Separately, Yarmouth is in the middle of a 2025 Hazard Mitigation Plan update: a public survey has already been conducted, and a draft mitigation-actions table is dated January 29, 2026 - a genuinely current, active planning document, not a stale one. This research couldn't pull the full contents of either document, so this page can't summarize their specific recommendations. But their existence, and their recent dates, are themselves useful evidence that Yarmouth is actively planning for storm risk in the present, even without a historical damage figure on record to point to. Anyone who wants the specifics should ask the Town of Yarmouth directly for the current Hazard Mitigation Plan draft and the Coastal Bluffs toolkit.

What This Page Cannot Tell You

To be direct about the limits of this page: it does not state a Yarmouth-specific damage figure, wind speed, or storm-surge height for the 1938 Hurricane, Hurricane Carol, or Hurricane Bob, because none was found despite genuinely thorough searching. The regional figures above - the 1938 storm's 18-to-25-foot storm tides, Bob's roughly 5.8-foot Buzzards Bay surge and $1 billion-plus Massachusetts damage total, Carol and Edna's back-to-back 1954 flooding - describe Cape Cod and Massachusetts broadly, not Yarmouth Port, West Yarmouth, or South Yarmouth specifically. This page also doesn't assign a flood-depth number to Lewis Bay or Bass River, or a storm-surge figure to either of Yarmouth's coastlines, because no such Yarmouth-specific figures exist in the sources checked.

Hurricane and storm risk for any specific property should be assessed using current FEMA flood maps, a licensed insurance professional, and the Town of Yarmouth's own hazard mitigation planning - not assumptions carried over from Barnstable, Dennis, or any other neighboring town, and not the regional history above treated as if it were a Yarmouth-specific record. Confirm current flood-zone designation, evacuation-zone status, and storm-preparedness resources directly with Yarmouth's own emergency management office or building department before making any purchase, insurance, or preparedness decision. Nothing on this page is insurance or engineering advice.