Most fence posts are treated with a wood. preservative to increase their service life, but the. installation method can affect the actual life of. the fence post. These pages will serve as a quick. guide to installing preservative-treated fence. posts for the greatest serviceable life.
The entire lifetime of a thunderstorm can vary. Typical afternoon thun â¦ derstorms in the summer usually consist of just 1 cell, thus lasts 20-30 minutes. Severe thunderstorms can consist of numerous cells, and last several hours.
A: First of all, severe thunderstorms are those that produce 3/4 hail or larger, winds 58 mph or greater or tornadoes. Severe thunderstorms require warm, moist air at the Earth's surface as well as favorable atmospheric conditions to increase instability and shear in storms as they develop.