With due respect to MrSpock, I’ve often wondered what 50% probability of precipitation means. Will it rain on half the area but not the other, as he suggests? Will it rain half the time? Does it mean the prediction is no better than a coin toss?
I suspect these predictions are useful only toward the extremes of the range: do I carry an umbrella or not? Should I skip the car wash or not? Do I water the lawn or not? 50%, 60%, I’ll look at the sky and judge for myself.
With due respect to MrSpock, I’ve often wondered what 50% probability of precipitation means. Will it rain on half the area but not the other, as he suggests? Will it rain half the time? Does it mean the prediction is no better than a coin toss?
I suspect these predictions are useful only toward the extremes of the range: do I carry an umbrella or not? Should I skip the car wash or not? Do I water the lawn or not? 50%, 60%, I’ll look at the sky and judge for myself.