How did the 1938 hurricane reach Category 5 strength?
发布时间:2026-09-21 | 浏览:1
Published: September 21, 2026 | Event Date: September 21, 1938 | By thisDay. Editorial Team | 8 min read
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The storm reached Category 5 strength over the Atlantic before weakening to Category 3 at Long Island landfall
Property losses were $306 million in 1938 dollars, equivalent to about $4.7 billion in 2024
Timeline: the road to New York and its aftermath
September 9, 1938 The storm formed as a tropical depression off the coast of West Africa
September 15, 1938 The system reached hurricane strength
September 16, 1938 The United States Weather Bureau first learned of the cyclone after ships reported strong winds northeast of San Juan
September 21, 1938 The Great Hurricane of 1938 made landfall on Long Island as a Category 3 hurricane
September 23, 1938 The storm transitioned into an extratropical cyclone and dissipated over Ontario
1951 Damaged trees and buildings were still visible in the affected areas
The Questions the Disaster Left Behind
The United States Weather Bureau only learned of the cyclone on September sixteen after ships reported strong winds northeast of San Juan, and the agency’s subsequent reports documented the hurricane’s rapid progression toward the coast.
Contemporary estimates placed the death toll between five hundred and seven hundred people, while some later counts cite six hundred eighty-two fatalities.
On Wednesday, September 21, 1938 the storm struck Long Island as a Category 3 hurricane, remaining the most powerful and deadliest hurricane to ever strike New York State, perhaps eclipsed in landfall intensity only by the Great Colonial Hurricane of 1635.
The lasting importance of Long Island lies in what changed after September 21, 1938.
Its extreme winds, widespread devastation, and the delayed awareness by the Weather Bureau underscore the storm’s singular impact on the region.
Analysis: 1938 New England hurricane
What the record supports
Precise Wind Metrics: The record documents specific sustained winds of 115 to 120 mph and a peak gust of 186 mph at the Blue Hill Observatory.
Quantified Property Loss: Damage assessments value the destruction at $306 million in 1938 dollars, equivalent to $4.7 billion in 2024.
Limits and unresolved questions
Delayed Detection: The U.S. Weather Bureau remained unaware of the cyclone until September 16, when ships reported strong winds northeast of San Juan.
Variable Fatality Counts: Estimates of the death toll range from 500 to 700 people, with some sources citing 682 fatalities.
Evidence Map: How We Checked the Central Claim
This comparison separates the event page selected for the account from the independently verified page used to corroborate it.
Central claim checked: The Great Hurricane of 1938 makes landfall on Long Island in New York. The death toll is estimated at 500–700 people.
Claims are paraphrased for comparison; use the direct source links for the full record.
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Questions readers ask about 1938 New England hurricane
The recorded event date is September 21, 1938.
Key figures included Ivan Ray Tannehill .
The record documents specific sustained winds of 115 to 120 mph and a peak gust of 186 mph at the Blue Hill Observatory.
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