I read all the time that big swings in barometric either up or down can spark a bite and that certain pressure trends can kill a bite. What I can't find is hard information about what qualifies as a 'big swing' or what sort of pressure prediction would cause a fella to think about staying home. How much change over what period of time is significant?
I'm asking as it pertains to saltwater and freshwater fishing. I would appreciate any information on how people are absorbing this information and using it to make fishing decisions.
Also, I've mostly looked at windfinder and wunderground for this information. If anyone has a better data source to share that would be great.