Red Bull Racing weather forecasting tips

With the weather forecast for this weekend's Belgian Grand Prix looking decidedly damp, Red Bull Racing offers these tips for making your own weather forecast at the Spa-Francorchamps circuit:
If you stand in the Spa paddock and cannot see the trees, it is raining.
If you stand in the Spa paddock and can see the trees, it will start raining soon.
If the cows in the field near the circuit are standing up, then it might stay dry for half an hour.
If the cows are lying down, it is raining.
If the cows are lying down with their legs in the air, they are dead cows.

As the 1998 GP photo at right shows, Spa in the rain can be a challenge!