Excellent!
Loads of details and up to date for our local rivers too !!
It would seem we are benefitting from the flood watch monitoring service that is updated at least daily or more often in times of flood from automatic monitoring installations (so we can take these to be accurate). There are around 10-15 stations for our river system, quite comprehensive.
The aim is to provide flood warnings but has an obvious side benefit for fishermen, either way, hurrah for something else to back up value for our license fees.