that would be approximately 10000 mm rain per hour.

Also known as 10m/h.

Or departing from the realm of the useful completely, that’s water pooling at roughly 1/30 of the speed with which an elite cyclist ascends a particularly steep gradient.

With a catchment area of “planet earth”, that’s roughly 5,100,000,000,000,000,000 liters of water an hour. That’s more than twice the amount of beer Lemmy Kilminster drank in an entire year!