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FEMA P-320, Taking Shelter from the Storm: Building a Safe Room for Your Home or Small Business (2014) [3] and ICC/NSSA Standard for the Design and Construction of Storm Shelters [4] provide engineering and testing requirements to ensure that above ground shelters manufactured to the published specifications will withstand winds in excess of ...
A tornado with no obvious funnel from the upper clouds, although the rotating dust cloud indicates strong winds at the surface. A tornado operates as a rotating, funnel-shaped cloud that extends downward from a thunderstorm, to the ground, with swirling winds which have reached 300 miles per hour (480 km/h). [2]
However, Croskery has noted that many tornado shelters don't open until there is an active tornado warning. "Thirteen minutes is the average lead time for a tornado. That's not a lot of time to ...
The physical geometry of a building affects its aerodynamic properties and how well it can withstand a storm. Geodesic dome roofs or buildings have low drag coefficients and can withstand higher wind forces than a square building of the same area. [1] [2] Even stronger buildings result from monolithic dome construction. [3]
A tornado emergency was issued in the late-night hours of Memorial Day on May 27, 2019 for Montgomery County, Ohio, including the cities of Dayton, Ohio, and Trotwood, Ohio. The tornado was rated EF4. A tornado emergency was issued in the night hours of May 2, 2021, in Tupelo, Mississippi. [12]
Gas prices have spiked in and around Chicago after a tornado sidelined a major ExxonMobil oil refinery last week. A gallon of gas in Chicago is now selling for an average of $4.34 , according to AAA.
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