There is a repeating rain pattern in silverstone

In the last series of races this week in TC cars, the rain pattern repeats itself from the third lap onwards. My question is: is the weather random or predetermined?

@SnugBrush838381
Would it be possible to provide a video of this in action?

I ran three races, two of which were during the day. The daytime races had a similar rain pattern, around the third lap it started to rain, similar to the races I had all afternoon, 90% with the same rain pattern, in the current series of TC rounds. The third race was at night, just like this afternoon when I turned on the game there were no notable changes.

three more images of the races in question



Here’s another race with the same rain pattern, this time I decided to go out with rain tires, I knew it was going to rain around the third lap.


here another race. lap 2,3,5 of the rain pattern