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.
1 The risks begin with marginal, which means that most thunderstorms will likely stay below severe levels, but there could still be an isolated severe thunderstorm or two. 2  The next level up is a slight risk. 3  Then there is an enhanced slight risk. 4  The level above the enhanced slight risk is called a moderate risk.