HOUSTON (KTRK) -- Travelers faced heavy delays at Bush Intercontinental Airport this morning as storms threatened their Thanksgiving holiday travel plans.A ground stop was ordered at IAH after heavy thunderstorms have moved into the area.The airport said there are no destination-specific delays to report, but travelers could experience delays for departure.Incoming flights were expected to be delayed by 15 minutes or less.We're following this story on Eyewitness News. Watch for updates on air, online and on our mobile news app.