Now could anyone
predict with accuracy that I would not get wet? Yes, knowing exact location
of the shower, its expected lifespan, etc, would have worked on the day, but
at T-24? That must remain a dream.

Not a dream, Jack, but a nightmare, though I see your point of view. The
day the weather becomes that predictable at the meso- or micro-scale will be
the day to stop taking any interest in it and frankly I hope it never happens.
For instance, today I recorded my highest November max (17.8) in the 21 yrs I
have been recording. From the forecast I did not expect it but it all adds to
the interest. Maybe a professional would think differently.

Tudor Hughes, Warlingham, Surrey.