This is a compact
downburst with a scale of 2.5 miles or less.
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It was an intense downward movement of air, known as
downburst, or a super storm that left nearly 120 people dead.
Despite the fact that most weather-related failures of high-voltage transmission lines (HVTLs) are attributed to
downbursts accompanied by heavy rainfall, research works are mainly focused on the behavior of the transmission towerline structures under dry
downburst winds.
An official report released on Wednesday and filed by a State Council investigation team said that the Capsize was an extraordinarily serious disaster and was caused due to strong winds and heavy rains accompanied by a
downburst that led to the capsize.
An official report released Wednesday and filed by a State Council investigation team said, according to state-run Xinhua news agency, that the capsize was "an extraordinarily serious disaster" and was caused due to strong winds and heavy rains accompanied by a
downburst that led to the (http://www.ibtimes.com/yangtze-cruise-ship-death-toll-mounts-so-do-questions-about-safety-standards-1951988) capsize .
A cabinet-level investigation team concluded the disaster was "caused by strong winds and heavy rains resulting from a squall line accompanied by a
downburst, a very rare weather phenomenon", the Xinhua state news agency said, citing investigators.
Buttrick said the weather service was not able to measure the severity of the winds in those towns, but it appeared to be from a
downburst, a larger-scale microburst.
Section 2 reviews the analytical models of transmission lines, truss towers, and the coupled tower-line system, which contains the theoretical model, finite element (FE) model, and the equivalent model; Section 3 reviews the wind responses of the transmission tower-line system, which contains the structural performance subjected to various wind loadings, such as common winds, tornado,
downburst, and typhoon, respectively, and the experiment and field testing on wind effects; Sections 4 and 5 discuss the seismic responses and ice-induced responses of the transmission tower-line system, respectively.
A
downburst is a strong downdraft which causes damaging winds on or near the ground (National Weather Service Forecast Office, Columbia, SC).
[4]
DOWNBURST: Cold, moisture-laden air sinks, then rushes to the ground, producing strong winds.
A bizarre wind - perhaps a storm-related phenomenon called a
downburst - came out of nowhere Wednesday and briefly whipped through an interior courtyard garden at South Eugene High School, lifting a wooden bench into the air, bending a metal awning and sending students, a teacher and a Register-Guard reporter there on an unrelated assignment diving for cover.