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Get the Chattanooga, TN local weather forecast by the hour and the next 10 days. ... Associated Press 1 hour ago ... Harrowing video captures aerial Los Angeles firefighter's view above fiery ...
The relationship between treatment effect and the hazard ratio is given as . A statistically important, but practically insignificant effect can produce a large hazard ratio, e.g. a treatment increasing the number of one-year survivors in a population from one in 10,000 to one in 1,000 has a hazard ratio of 10.
A hazard quotient is the ratio of the potential exposure to a substance and the level at which no adverse effects are expected. If the Hazard Quotient is calculated to be less than 1, then no adverse health effects are expected as a result of exposure. If the Hazard Quotient is greater than 1, then adverse health effects are possible.
The system automatically drops the speed limit from 70 to 50 miles per hour (113 to 80 km/h) when visibility drops below 1 ⁄ 4 mile (0.40 km), and to 35 miles per hour (56 km/h) when the visibility drops below 480 feet (150 m). [21] The swing gates at the entrance ramps activate when visibility drops below 240 feet (73 m). [21]
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On May 2 alone, 7.25 inches (184 mm) of rain fell, including 7.20 inches (183 mm) during a 12-hour period and 5.57 inches (141 mm) in a 6-hour period, eclipsing records set on September 13, 1979. The event also set a record for wettest May on record, surpassing the record set in May 1983 with 11.84 inches (301 mm).
The rain lasted for four days, bringing the water level in the Tennessee River 28 feet above flood range. The bridge across the river was destroyed, as were many buildings. There was a considerable loss of life and looting took place. Upwards of 4,000 homeless in Chattanooga were ferried out of the flooding city to areas of higher ground. [1]
The 1867 flood of Chattanooga is the largest flood in the city's recorded history. The flood followed a period of heavy rain that affected most of the Tennessee Valley and lasted from March 7 to March 11, 1867. [1] At its highest point, the water of the Tennessee River crested 58 feet (18 metres) above its normal level, and it inundated much of ...