Many anglers believe that a bass cannot read differences in air pressure. According to many studies, if a bass is holding in three-feet of water, a difference in water pressure caused by a difference in air pressure would be so low that neither man nor fish could detect it.
But, If that bass changes depth by three inches, the change in water pressure would be far greater than any change caused by a change in air pressure. And a bass changes depths by more than three-inches several times an hour, while it takes eight or more hours for the change in air pressure that is equal to a three-inch change in water depth.
There is an alternate theory. Moist air is lighter (weighs less) than dry air; and warm air is lighter than cold air. Therefore, warm moist air causes low air pressure readings, not the other way around.
Conversely: dry, colder air causes increases in air pressure, not the other way around.
