I believe its put on the ATIS not just for the benefit of the commercial crews who receive it over the RT or at breifing, but also for GA & light aircraft pilots some of which could be considering a cross country flight for example & want to get the ATIS via the phone before hand, or even en route so they can plan ahead as to whether to fly into BRS or give the whole place a miss based on these warnings.
I have seen a few interesting approaches & landings from the ones who have departed BRS & on the return found the weather not to be as they thought it would be.
I suppose we could say nothing & sod the lot
Check my post 29/01/05
Cheers