About: 1940 Louisiana hurricane

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The 1940 Louisiana hurricane caused record flooding across much of the Southern United States in August 1940. The second tropical cyclone and hurricane of the annual hurricane season, it formed from a frontal low off the west coast of Florida on August 3. Initially a weak disturbance, it moved generally westward, slowly gaining in intensity. Early on August 4, the depression attained tropical storm intensity. Ships in the vicinity of the storm reported a much stronger tropical cyclone than initially suggested. After reaching hurricane strength on August 5 south of the Mississippi River Delta, the storm strengthened further into a Category 2 hurricane with maximum sustained winds of 100 mph and a minimum barometric pressure of 972 mbar (hPa; 28.71 inHg) at 0600 UTC on August 7. The hurrican

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  • The 1940 Louisiana hurricane caused record flooding across much of the Southern United States in August 1940. The second tropical cyclone and hurricane of the annual hurricane season, it formed from a frontal low off the west coast of Florida on August 3. Initially a weak disturbance, it moved generally westward, slowly gaining in intensity. Early on August 4, the depression attained tropical storm intensity. Ships in the vicinity of the storm reported a much stronger tropical cyclone than initially suggested. After reaching hurricane strength on August 5 south of the Mississippi River Delta, the storm strengthened further into a Category 2 hurricane with maximum sustained winds of 100 mph and a minimum barometric pressure of 972 mbar (hPa; 28.71 inHg) at 0600 UTC on August 7. The hurricane moved ashore near Sabine Pass, Texas later that day at peak strength. Once inland, the storm executed a sharp curve to the north and quickly weakened, degenerating into a tropical storm on August 8 before dissipating over Arkansas on August 10. Reports of a potentially destructive hurricane near the United States Gulf Coast forced thousands of residents in low-lying areas to evacuate prior to the storm moving inland. Offshore, the hurricane generated rough seas and a strong storm surge, peaking at 6.4 ft (1.95 m) on the western edge of Lake Pontchartrain. The anomalously high tides flooded many of Louisiana's outlying islands, inundating resorts. Strong winds caused moderate infrastructural damage, primarily in Texas, though its impact was mainly to communication networks along the US Gulf Coast which were disrupted by the winds. However, much of the property and crop damage wrought by the hurricane was due to the torrential rainfall it produced in low-lying areas, setting off record floods. Rainfall peaked at 37.5 in (953 mm) in Miller Island off Louisiana, making it the wettest tropical cyclone in state history. Nineteen official weather stations in both Texas and Louisiana recorded record-level 24-hour rainfall totals for the month of August as a result of the slow-moving hurricane. Property, livestock, and crops–especially cotton, corn, and pecan crops–were heavily damaged. Entire ecosystems were also altered by the rainfall. Overall, the storm caused $10.75 million in damages and seven fatalities. (en)
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  • Southern United States (en)
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  • 1940-08-10 (xsd:date)
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  • 1940-08-03 (xsd:date)
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  • Surface weather analysis of the storm on August 7, at peak intensity (en)
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  • 1940 (xsd:integer)
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  • The 1940 Louisiana hurricane caused record flooding across much of the Southern United States in August 1940. The second tropical cyclone and hurricane of the annual hurricane season, it formed from a frontal low off the west coast of Florida on August 3. Initially a weak disturbance, it moved generally westward, slowly gaining in intensity. Early on August 4, the depression attained tropical storm intensity. Ships in the vicinity of the storm reported a much stronger tropical cyclone than initially suggested. After reaching hurricane strength on August 5 south of the Mississippi River Delta, the storm strengthened further into a Category 2 hurricane with maximum sustained winds of 100 mph and a minimum barometric pressure of 972 mbar (hPa; 28.71 inHg) at 0600 UTC on August 7. The hurrican (en)
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  • 1940 Louisiana hurricane (en)
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