Do You Open Your Windows During A Tornado __link__
Meteorologists and structural engineers have thoroughly debunked the pressure-equalization theory for several key reasons:
For decades, a persistent myth has suggested that opening windows in a home during a tornado helps equalize pressure, thereby preventing the building from exploding due to the low atmospheric pressure of the funnel cloud. This paper examines the structural physics of tornadoes, the origins of this misconception, and the guidance provided by meteorological experts. The conclusion reached is that opening windows is not only ineffective at saving a structure but is a dangerous practice that wastes critical time that should be spent seeking shelter. do you open your windows during a tornado
Atmospheric pressure differences between the inside of a home and the center of a tornado are indeed significant, but they do not happen instantaneously. A tornado moves, meaning the pressure drop is transient. Even if a house were perfectly sealed (which most houses are not, due to vents, chimneys, and general air leakage), the structural integrity of wood, brick, and drywall is capable of withstanding the pressure differential. The explosion effect often seen in tornado aftermaths is caused by wind entering the structure, not by pressure vacuum alone. Atmospheric pressure differences between the inside of a
The belief likely stems from observations of tornado damage in the early 20th century. Survivors would see homes with collapsed walls and blown-out windows and assume the internal pressure had caused the explosion. In reality, the windows were almost certainly blown inward by the tornado’s extreme winds, and the walls failed from external wind pressure, not internal expansion. The explosion effect often seen in tornado aftermaths
But does this advice hold up to modern meteorological science? The short answer is . Not only is it ineffective, but it is dangerously counterproductive.