DENVER (CBS4) – Flight schedules are slowly getting back to normal at Denver International Airport after the violent weather caused a ground hold.

The FAA called the ground hold at when a severe storm came through and brought heavy rain, lightning and hail. There was so much hail on the runways that crews had to use snowplows to clear them off.

READ MORE: COVID In Boulder: 2021 Ralphie’s Independence Day Blast Canceled At Folsom Field
(credit: Denver International Airport)

(credit: Denver International Airport)

The ground hold kept flight crews indoors and out of harm’s way.

Many flights going into DIA and coming out were delayed due to the hold, and a few flights had to be canceled.

Approximately 130 outgoings planes were delayed, some by as much as 3 hours. Some flights also had to be diverted to other airports.

READ MORE: Jack Phillips Of Masterpiece Cakeshop Ordered To Pay Fine For Refusing Transgender Cake Order

Airport passengers who drove in to the airport told CBS4 the ride along Pena Boulevard was loud, with all the hail hitting their cars and the road.

MORE NEWS: Denver Weather: Rare Consecutive 100 Degree Days In Denver

According to, DIA was the worst airport for delays in the country on Thursday.