"Matthew Chidester" wrote in message
news:PM5Pa.23360$N7.2983@sccrnsc03...
but everytime I take a lesson here from salt lake international and listen
to atis.. why doesn't atis just GIVE you the density alt. at the surface
on
hot days instead of the "check density alt." we get here..

I don't know the answer. You're right, it would be useful. Most
high-altitude airports I've been to carry a similar warning.

However, I will mention that at some airports, I have heard the density
altitude reported on the *automated* weather system (ASOS or AWOS). I don't
know what it takes to include that, though I assume it does involve extra
equipment (after all, if it didn't you'd think they'd all report it).

Pete