This tells you how many flies will be at the beach based on current conditions.
For many local beach users on the East Coast, knowing how many flies--specifically, those gnarly biting black marsh flies--will be at the beach is the most important bit of knowledge in determining whether they'll go to the beach or not.
We all know a west wind is the worst for conditions and the DFM (Damn Fly Meter) will show a 10 during west wind days. We came up with this App to help people determine just how bad the flies will be based on the current conditions.