This may sound like a dumb question, but is mslp the pressure? and if so why is it always an integer such as 1016 whereas whenever I see the pressure on other sites, it always seems to be listed as a decimal e.g. 1016.1.
Yes, MSLP stands for "Mean Sea Level Pressure". Other sites might be displaying more precision in their values, perhaps WUG always has this as an integer...no real reason, just the nature of data from different sources.