There's a TikTok video blowing people's minds right now because it reveals that the "chance of rain" in a weather forecast doesn't mean what we all thought....
I was today years old when I learned this and now I'm looking at all my friends at NBC 6 wondering "how could you let me live this lie?!?!?!"
Ok but seriously, thanks to a TikTok video that's going viral we've learned that a "30% chance of rain" does NOT mean there's a 30% chance it's going to rain...
That 30% is based on what the chances that it's going to rain are, multiplied by the percentage of the area that will get the rain.
So "50%" in the forecast doesn't mean there's a 50-50 chance it will rain. It means there's a chance rain will happen in the area, multiplied by how much of the area will probably get that rain.
So if a meteorologist is 50% sure there will be rain that will cover 80% of the local area, that would come out as . . . 40% on the weather forecast.