Barometric pressure's only role is that it tell us there is a change in
weather, and that those changes can effect the bass's behavior (wind
direction & speed, cloud cover or light penetration, rain - be it hot or
cold can cause changes in current speed, etc.) It is the overall effects
that weather changes bring to the situation that causes changes in the
bass's behavior. You don't need a barometer to identify these changes, but
if you have done your homework before going out, and know what is
approaching (a High Front or Low Front), you can use it to identify the
changes as they are about to occur. So that you can anticipate the fish's
movement and react accordingly.

--
Craig Baugher
Be Confident, Focused, but most of all Have FUN!