Surface weather analysis of the hurricane tracking southwest over Andros Island in the Bahamas on September 25
Meteorological history
Formed
September 22, 1929 (1929-09-22)
Dissipated
October 4, 1929 (1929-10-05)
Category 4 major hurricane
1-minute sustained (SSHWS/NWS)
Highest winds
155 mph (250 km/h)
Lowest pressure
924 mbar (hPa); 27.29 inHg
Overall effects
Fatalities
155 direct
Damage
$9.31 million (1929 USD) (U.S. damage only)
Areas affected
The Bahamas
Florida
United States East Coast
Canadian Maritimes
IBTrACS
Part of the 1929 Atlantic hurricane season
The 1929 Bahamas hurricane (also known as the Great Andros Island Hurricane) was a high-end Category 4 tropical cyclone whose intensity and slow forward speed led to catastrophic damage in the Bahamas in September 1929, particularly on Andros and New Providence islands. Its erratic path and a lack of nearby weather observations made the hurricane difficult to locate and forecast. The storm later made two landfalls in Florida, killing eleven but causing comparatively light damage. Moisture from the storm led to extensive flooding over the Southeastern United States, particularly along the Savannah River. Across its path from the Bahamas to the mouth of the Saint Lawrence River, the hurricane killed 155 people.
The storm's origins can be traced to tropical wave first noted near the Cabo Verde Islands on September 11, 1929. This tropical disturbance remained dormant as it tracked west until September 18, when an associated area of thunderstorms developed into a tropical depression northeast of Puerto Rico. Gradually strengthening, the depression reached tropical storm strength on September 22 and hurricane strength on September 23. Beginning on September 24, the storm took a slow and southwestward path through the Bahamas, passing over Nassau and Andros Island between September 25–26 with maximum sustained winds of 145 mph (230 km/h).[nb 1] This southwestward trajectory was unprecedented for the islands. The storm then curved west and struck the Florida Keys at Key Largo on September 28 with winds of 115 mph (185 km/h). Two days later, the cyclone moved ashore Apalachicola, Florida, as a minimal hurricane shortly before transitioning into an extratropical cyclone. This system tracked northeast along the interior of the East Coast of the United States before dissipating near the Saint Lawrence River on October 4.
Poorly-built structures and ships were destroyed throughout the Bahamas. Andros Island was within the envelope of the storm's hurricane-force winds and storm surge for two days. Parts of the island were inundated by a 12 ft (3.7 m) surge that advanced 20 mi (32 km) inland, wiping out all crops and most fruit trees and livestock. A wind gust of 164 mph (264 km/h) was measured in Nassau, which also experienced the calm of the hurricane's eye for two hours. An estimated 73% of the city's homes and businesses sustained damage, leaving more than 5,000 people without homes. The hurricane was a heavy blow to the declining sponge industry on the islands. Following the storm, wild birds and crops were brought from the Caribbean to replenish their losses in the Bahamas. New building codes were enacted after the 1929 storm to prevent similarly extensive destruction.
A 6–9 ft (1.8–2.7 m) storm surge battered the Florida Keys, washing out highways and sinking small fishing boats. At least five tornadoes struck Florida, representing some of the first verified reports of tornadoes caused by a tropical cyclone. One impacted Fort Lauderdale's business center and caused $100,000 in damage.[nb 2] The Apalachicola waterfront sustained heavy damage from the storm's final landfall, including the loss of nearly all wharves. Widespread flooding occurred throughout Georgia and The Carolinas due to the continuous influx of moisture from the slowly-moving hurricane. A maximum rainfall total of 20.0 in (510 mm) was registered in Glennville, Georgia. The Savannah River reached a record stage of 46.1 ft (14.1 m) at Augusta, Georgia, breaching a levee and inundating much of the surrounding floodplain. The damage toll in the United States totaled to at least $9.31 million.
^Landsea, Chris; Franklin, James; Beven, Jack (May 2015). "The revised Atlantic hurricane database (HURDAT2)" (PDF). Miami, Florida: National Hurricane Center. Retrieved April 1, 2020.
^"Original HURDAT Format". Atlantic Oceanographic and Meteorological Laboratory. Miami, Florida: National Oceanic and Atmospheric Administration. Retrieved April 1, 2020.
Cite error: There are <ref group=nb> tags on this page, but the references will not show without a {{reflist|group=nb}} template (see the help page).
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