Definition: The probability of precipitation in a weather forecast is an estimate of the chance of a measurable amount of rain or snow falling anywhere in a given forecast region over the forecast period. Probabilities are given in 10 percent increments.
To extend the legs to help create lift off the ground (i.e. an ollie) or "center pop" in which the entire length of the skis or snowboard leaves the ground.
when youre talking about the pop of a ski you are mostly talking about its flex. A skis pop depends on the rider like how big you are or how hard you go but pop is when you would flex the ski for ollie or nollie and then using that flex to pop yourself so buying the softest ski in the world wont necessarily give you flex unless ur a really light skier or if ur a bigger guy you can make pretty much any ski pop