Originally Posted by
ethernal
And more importantly more predictable. A serious ground-stop causing thunderstorm can happen pretty much any afternoon/evening in the summer and throw ops into complete disarray with little to no warning.
I know in advance if I am flying into snow or similar and plan accordingly.
There are actually some decent tools for predicting the *probability* of TS (and turbulence) nowadays. During summer months, I always make sure to check
https://aviationweather.gov/ if I'm going to be flying in the afternoon. Of course it's impossible to say exactly where/when a storm will occur, but it gives a pretty good summary of the TS probability and locations.