>> reporter: same sentiments from the mastandona family. >> they have to fly, somebody has to make them fly. >> reporter: parade organizers aren't concerned about rain or snow, it's wind. giant plans like the all new toothless from "how to train your dragon" measuring 72 feet long and 36 feet ride, could be grounded, if some forecasts are true and sustained winds reach at least 23 miles per hour thursday, or wind gusts top 34 miles per hour. macy's saying regarding the giant balloons a determination is made on their inclusion based on real time weather data parade morning and not forecasts. so it's not helpful to discuss it now." it was a topic of discussion and concern for new york city police. >> we've had several meetings, we have a meeting today on it. we have instruments that give us cross-wind measurements. we've done a lot of training on this. >> reporter: both city and pa