The Shannon radar can go to hell for all I care, it was just as useless for my region when 'operating' as when it is not. Showing rain when there isn't any, and none, or the lightest blue, when rivers are running down streets.
As an aside. I just recently purchased a manual rain gauge similar to this one from 'CLIMET':
Pretty cheap and pretty flimsy, but apparently quite accurate and plan on setting it up at the start of next year. Although I have a Davis weather station, I have come not to trust the rain readings as they always under record. Always suspected this by comparing measurements in a humble mug place near it (always by between about 10% to 20%) but confirmed by the recent introduction of a nearby Met Eireann station located about 2 miles away. So from next year on, any rain totals I will be reporting on here will be from this new, simple gauge rather than from the overly expensive Davis one.
I've an old met Éireann gauge alongside my Davis and readings are pretty much the same
I understand Danno also has this down in Durrow so should be able to concur or not