Show velocity cf of wind in meteorological terms a strong wind Is anything from 24 to 37 milea miles an hour a gale gals from 38 to 65 miles and a storm from 56 to t 0 75 miles be yond that it may be described as a hurricane in the convulsion which destroyed the tay bridge in december 1879 the anemometer registered gusts of wind which exceeded miles an hour the connection between the velocity and the pressure of the wind Is not yet known with absolute dainty but roughly speaking wind of 40 miles produces a pressure of eight pounds to the square toot foot and 61 1 miles a pressure of 13 pounds the british association committee on wind pressure has recorded cases of eight to ninety pounds to the square foot london Ct ronicle |