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.
For Day 1, the percentage lines provide the chance that the given type of severe weather (tornado, hail, or damaging thunderstorm wind) will happen within about 25 miles of a point. For Day 2 and Day 3, the probabilities cover all severe storm hazards together.