Bad weather grounded air force planes and helicopters for days at a time, slowing troop transport even while commercial airlines kept flying.

It was only 6.15 in the evening but the weather had grounded all aircraft, and the crews were off duty.

I was stranded at the port when the weather grounded my shuttle to Dahkur.

But the weather has grounded the drones.

The weather, they've grounded all aircraft in the area.

Bad weather, however, grounded flights on Tuesday afternoon.

Bad weather in the Canadian Arctic has grounded aircraft chartered to pluck him from the drifting sea ice.

When it was learned how badly he was hurt, and that bad weather had grounded the helicopter, even people who were sick turned out to help.

Bad weather in mid December grounded many of the 8th Air Force Groups.

It got off to a bad start, as fog and snowy weather grounded the planned air support.