Travelforecast.com's TripCast airport delays are based on future weather events and expected airport volume. The delays you see here are the expected delays 6 hours from now out 24 hours.  

Travelforecast.com's TripCast airport delays  should not be confused with FAA delays.  The FAA reports delays that are happening at the present, and not in the future. 

For a detailed explanation of Travelforecast.com's TripCast airport delays, click here.

Looking for more, check out Weather Depot where you can view TripCast airport delay maps out 60 hours into the future.