The short version
Fish feed hardest on a falling barometer, in the twelve to twenty-four hours before a front arrives. They shut down during and just after the pressure bottoms out.
What to watch
- Above 1020 mb and steady — slow, fish deep and slow down your presentation
- Falling from 1015 mb — the window; fish it hard
- Rising after a front — expect a day or two of tough fishing
The pressure trend chart on each pier page plots the last 72 hours so you can see the slope rather than guess at it.