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.
The weather service defines a âsevere stormâ as a thunderstorm with âwind gusts to at least 58 mph, and/or hail at least one inch in diameter and/or a tornado.â. There are now six classifications for severe weather: Thunderstorms (no label) : No severe thunderstorms expected, winds to 40 mph, small hail. Marginal Risk: Isolated severe storms are possible, limited in duration or intensity. Winds up to 60 mph, hail up to one inch, low tornado risk. Slight Risk: Scattered severe storms possible, short-lived, some isolated intense storms possible. One or two tornadoes, wind damage potential, hail.