By Josh Bendoski
Barometric pressure is the weight of the atmosphere, and it is critical to understand why you have excellent days fishing and why you have had tough days after. As many of you know, you can go to the exact same fishing hole using the exact same bait, and from one day to the next, you could catch 20-50 fish one day and you could catch one fish the next.
The easiest way to think about how barometric pressure affects fishing is to think about a time you swam to the bottom of a deep swimming pool. It gives you kind of headache.
The headache is caused by the pressure of the water, but the same thing is true about barometric pressure which is the weight of the atmosphere. If you have ever met someone that has a bad knee or arthritis in their fingers, sometimes, they can feel a storm coming before it actually rains. That is due to the barometric pressure.
Normal barometric pressure is measured at 29.92. Anything higher is considered high barometric pressure, and anything lower is low barometric pressure.
Fish have an air sack inside of their stomachs which is there to control their buoyancy. This is how they control where they are in the water column. If the fish want to be 20 feet deep or 5 feet deep, whatever it may be, It is the air sack that controls that.
The air sac inside of them is affected by barometric pressure. On high-pressure days it would be comparable to attempting to do math at the bottom of a pool with a headache.
It is almost as if they have a stomachache, so the fish are not biting. As you begin to watch this element of fishing, you will see a very clear connection between the success of your fishing trip and the pressure of the atmosphere. In fact, I know many guides that will reschedule their guided trips around barometric pressure to ensure success of their fishing tours.
Barometric pressure is included on most weather reports. You simply have look up the weather report, and it will tell what the pressure is for the day. A good field reference is looking at the clouds. A Cristal clear day generally means high pressure, and a cloudy or stormy day means low pressure. So, if you are really hungry? Go fishing on the cloudy day.
Tight lines!
BendoskiPowerFishing.com