The Coll rainfall details cannot be displayed because you need Adobe Flash Player.
If you are on a company computer it could be because your company has disabled what is called scripting, in which case you may be able to view the rainfall data by clicking here.
iPod,iPhone or iPad users:-
If you are viewing this page on an Apple iPod,iPhone or iPad then you are doomed. Apple will not allow you to view Adobe Flash files. Please take this up with Apple computers as they are seriously compromising your enjoyment of the interactive web and there is no technical reason for this whatsoever.