"::British Isles is to be avoided on Wikipedia. Part of the ambiguity has probably arose from the fact that we are dealing with a geographical area (Great Britain and Ireland) and a lot of the sources come from the Met Office and Met Eirann, which almost exclusively publish information relevant to the UK or Rep. Ireland. I think it would be best practice to keep to geographical terms and use country names only when referring to jurisdictions of the met offices.  Ω Janner 

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