The phone aps I listed earlier are pretty accurate! Input zipcode you're hunting/fishing, and they'll typically get you within 10 - 15 minutes. Again, they are not infallible, weather patterns can throw them off. But, we've been using those two and tracking movement/bites on HUNDREDS of outings, between the two of us, and I'd give them close to 75+% of time, they're within 15 minutes.