1938 Long Island Hurricane

The 1938 New England Hurricane (also referred to as the Great New England Hurricane and the Long Island Express Hurricane) was one of the deadliest and most destructive tropical cyclones to strike Long Island, New York, and New England. The storm formed near the coast of Africa on September 9, becoming a Category 5 hurricane on the Saffir–Simpson hurricane scale, before making landfall as a Category 3 hurricane on Long Island on Wednesday, September 21. It is estimated that the hurricane killed 682 people, damaged or destroyed more than 57,000 homes, and caused property losses estimated at $306 million ($4.7 billion in 2017). Multiple other sources, however, mention that the 1938 hurricane might have really been a more powerful Category 4, having winds similar to Hurricanes Hugo, Harvey, Frederic and Gracie when it ran through Long Island and New England. Also, numerous others estimate the real damage between $347 million and almost $410 million. Damaged trees and buildings were still seen in the affected areas as late as 1951. It remains the most powerful and deadliest hurricane in recorded New England history, perhaps eclipsed in landfall intensity only by the Great Colonial Hurricane of 1635.

At the time, roughly half of the 1938 New England hurricane's existence went unnoticed. The Atlantic hurricane reanalysis in 2012 concluded that the storm developed into a tropical depression on September 9 off the coast of West Africa, but the United States Weather Bureau was unaware that a tropical cyclone existed until September 16; by then, it was already a well-developed hurricane and had tracked westward toward the Sargasso Sea. It reached hurricane strength on September 15 and continued to strengthen to a peak intensity of 160 mph (260 km/h) near The Bahamas four days later, making it a Category 5-equivalent hurricane. The storm was propelled northward, rapidly paralleling the East Coast before making landfalls on Long Island and Connecticut as a Category 3-equivalent hurricane on September 21. After moving inland, it transitioned into an extratropical cyclone and dissipated over Ontario on September 23.

Meteorological history

The Atlantic hurricane reanalysis project analyzed the 1938 Atlantic hurricane season in 2012, and Weather Bureau forecaster Ivan Ray Tannehill noted that the knowledge of the storm's existence at the time remained tenuous until September 17 when the cyclone had already increased to a hurricane. Based on land and marine observations, the reanalysis project concluded that the 1938 hurricane began as a tropical depression just off the coast of West Africa at 12:00 UTC (8 a.m. Eastern Standard Time) on September 9, becoming the sixth tropical cyclone of the season. The depression gradually strengthened, becoming a tropical storm less than a day after tropical cyclogenesis. It was inferred to have reached hurricane intensity over the central Atlantic by September 15, though ship observations became increasingly sparse as the cyclone tracked farther away from land. The first definitive indication of a tropical cyclone at sea was a report from the Brazilian ship SS ''Alegrete'' which documented a barometric pressure of 958 mbar ( hPa; 28.29 inHg) within hurricane-force winds on September 17. Based on this observation, the hurricane had maximum sustained winds of 125 mph (200 km/h), making it the equivalent of a high-end Category 3 hurricane on the Saffir–Simpson hurricane wind scale.

The hurricane continued to slowly strengthen and track westward at around 20 mph (32 km/h) about the southern periphery of a subtropical ridge centered over the Sargasso Sea. On September 18, a strong extratropical cyclone developed just west of Chicago, generating a strong influx of cooler air from Canada into the eastern United States and thus forming a sharp cold front over the region; this frontal boundary resulted in a channel of moist, tropical air being steered northwards into New England. At 18:00 UTC (2 p.m. EST) on September 19, the tropical cyclone strengthened further into a Category 5-equivalent hurricane with sustained winds of 160 mph (260 km/h) while north of the Turks and Caicos; this figure remained unchanged in reanalysis and serves as the storm's peak strength, although the reanalysis project noted that "considerable uncertainty" remains regarding the magnitude of the storm's maximum intensity at sea. Concurrently, the hurricane began to interact with the cold front over the East Coast, causing the tropical cyclone to curve northward towards the northeastern United States; the presence of the subtropical ridge to the east and the stationary nature of the frontal boundary prevented the storm from continuing to curve out to sea.

As the hurricane accelerated northward, it gradually weakened. On the morning of September 21, it passed roughly 75 mi (120 km) east of Cape Hatteras. At 12:00 UTC (8 a.m. EST) that day, the storm was estimated to have a barometric pressure of 940 mbar (hPa; 27.76 inHg); this is the hurricane's lowest documented pressure. At 19:45 UTC (3:45 p.m. EST), the hurricane made landfall on Long Island over Bellport, New York with maximum sustained winds of 120 mph (195 km/h) and a pressure of 941 mbar (hPa; 27.79 inHg), making it the strongest tropical cyclone to hit the New York City area. It was moving rapidly northward at 47 mph (76 km/h), enhancing the intensity of the winds east of the center; in addition, its forward motion displaced its center of circulation 17 mi (28 km) away from the point of minimum barometric pressure. Weather Bureau forecaster Charles Pierce argued that the hurricane became extratropical off of the Outer Banks, though Charles J. Neumann, Frances P. Ho, and the Atlantic hurricane reanalysis project suggested that it was tropical but in the process of extratropical transition at landfall. Afterwards, it quickly tracked across Long Island and Long Island Sound before making a second and final landfall near New Haven, Connecticut as a slightly weaker hurricane with winds of 115 mph (185 km/h), making it one of only three recorded tropical cyclones to hit Connecticut as major hurricanes. The storm steadily weakened, becoming fully extratropical over Vermont by 00:00 UTC on September 22 (September 21, 8 p.m. EST). Following this transition, the remnants continued to weaken before they dissipated over southeastern Ontario on September 23.

Forecasting the storm

In 1938, United States forecasting lagged behind forecasting in Europe, where new techniques were being used to analyze air masses, taking into account the influence of fronts. A confidential report was released by the United States Forest Service, the parent agency of the United States Weather Bureau. It described the weather bureau's forecasting as "a sorry state of affairs" where forecasters had poor training and systematic planning was not used, and where forecasters had to "scrape by" to get information wherever they could. The Jacksonville, Florida, office of the weather bureau issued a warning on September 19 that a hurricane might hit Florida. Residents and authorities made extensive preparations, as they had endured the Labor Day Hurricane three years earlier. When the storm turned north, the office issued warnings for the Carolina coast and transferred authority to the bureau's headquarters in Washington.

At 9:00 am EDT on September 21, the Washington office issued northeast storm warnings north of Atlantic City and south of Block Island, Rhode Island, and southeast storm warnings from Block Island to Eastport, Maine. The advisory, however, underestimated the storm's intensity and said that it was farther south than it actually was. The office had yet to forward any information about the hurricane to the New York City office. At 10:00 am EDT, the bureau downgraded the hurricane to a tropical storm. The 11:30 am advisory mentioned gale-force winds but nothing about a tropical storm or hurricane.

That day, 28 year-old rookie Charles Pierce was standing in for two veteran meteorologists. He concluded that the storm would be squeezed between a high-pressure area located to the west and a high-pressure area to the east, and that it would be forced to ride up a trough of low pressure into New England. A noon meeting was called and Pierce presented his conclusion, but he was overruled by "celebrated" chief forecaster Charles Mitchell and his senior staff. In Boston, meteorologist E.B. Rideout told his WEEI radio listeners – to the skepticism of his peers – that the hurricane would hit New England. At 2:00 pm, hurricane-force gusts were occurring on Long Island's South Shore and near hurricane-force gusts on the coast of Connecticut. The Washington office issued an advisory saying that the storm was east-southeast of Atlantic City and would pass over Long Island and Connecticut. Re-analysis of the storm suggests that the hurricane was farther north and just from Fire Island, and that it was stronger and larger than the advisory stated.

Impact

The majority of the storm damage was from storm surge and wind. Damage was estimated at $308 million, the equivalent of $5.1 billion adjusted for inflation in 2016 dollars, making it among the most costly hurricanes to strike the U.S. mainland. It is estimated that, if an identical hurricane had struck in 2005, it would have caused $39.2 billion in damage due to changes in population and infrastructure.

Approximately 600 people died in the storm in New England, most in Rhode Island, and up to 100 people elsewhere in the path of the storm. An additional 708 people were reported injured..

In total, 4,500 cottages, farms, and other homes were reported destroyed and 25,000 homes were damaged. Other damages included 26,000 automobiles destroyed and 20,000 electrical poles toppled. The hurricane also devastated the forests of the Northeast, knocking down an estimated two billion trees in New York and New England.
Freshwater flooding was minimal, however, as the quick passage of the storm decreased local rainfall totals, with only a few small areas receiving over 10 inches (250 mm).

Over 35% of New England's total forest area was affected. In all, over 2.7 billion board feet of trees fell because of the storm, although 1.6 billion board feet of the trees were salvaged. The Northeastern Timber Salvage Administration (NETSA) was established to deal with the extreme fire hazard that the fallen timber had created. In many locations, roads from the fallen tree removal were visible decades later, and some became trails still used today. The New York, New Haven and Hartford Railroad from New Haven to Providence was particularly hard hit, as countless bridges along the Shore Line were destroyed or flooded, severing rail connections to badly affected towns such as Westerly, Rhode Island.

Due to the lack of technology in 1938, Long Island residents were not warned of the hurricane's arrival, leaving no time to prepare or evacuate. Long Island was struck first, before New England and Quebec, earning the storm the nickname the "Long Island Express." The winds reached up to 150 mph (240 km/h), with waves surging to around 25–35 feet (7-10 m) high.

Yale and Harvard both owned large forests managed by their forestry departments, but both forests were wiped out by the hurricane. However, Yale had a backup forest at Great Mountain in northwestern Connecticut which was spared from the totality of the damages, and they were able to keep their forestry program running, which maintains operation today. Harvard's program, however, was reduced as a result.

New Jersey

The western side of the hurricane caused sustained tropical storm-force winds, high waves, and storm surge along the Jersey ShoreThe Weather Doctor Almanac 2008 The Great Hurricane of 1938: The Long Island Express Part 2
Retrieved August 20, 2013. and destroyed much of the boardwalk in Atlantic City. The Brigantine Bridge was destroyed over Absecon Inlet between Atlantic City and Brigantine, New Jersey