During the 3 hour spell starting midnight, the rainfall was often torrential, and spent more than half the time in the 16-70mm/hr range... a big range, yes.
So perhaps 25mm is a reasonable representation, although I suspect Whiteknights Campus might have had a higher value as it scored a few more direct hits than Benson... in fact about as many as anywhere in England as far as I could tell!
Today, GFS is keen on substantial shower development again, and EURO-4 is still showing something in the same sort of region. WRF sort of has something but seems to fizzle everthing out shortly after it gets going, except along the South Coast where it develops a marked convergence line that is most likely a result of the sea breeze meeting the northerly airflow. The UK doesn't often see that sort of thing happen to a large enough extent to bring notable precipitation, so it will be interesting to observe if it occurs.
The radar is showing some cells already building to the NE of Reading, to the SW of which is an area of pleasant sunny spells which I intend to take a short walk in to seek out any surface water flooding from alst night.
Originally Posted by: Stormchaser