Floating Harbour
The thing is you should already have those warnings in your Met briefing notes - How do the ATS get them in the first place. Sometimes these warnings can take one pilot from the Active frequency for a long period of time whilst waiting for the ATIS weather. Only once you have this do you know what type of approach if any you can do.
Last night (In darkness) the warning was intense bird activity, surely not valid at the time I was listening to the ATIS.
What next 'Caution Mad Hungarian on approach to Cardiff'?