1.   Fog grounded a U S Airways flight to Richmond, Va., recently and the passengers in the aircraft at La Guardia were impatiently waiting for takeoff.

2.   Virtually all country roads in the region have been washed out, and a vengeful fog had grounded helicopters.

3.   Winter fog often grounds helicopters.

4.   Coastal fog grounded the helicopter Monday.

5.   The helicopter crew had been scheduled to drop the flowers after a memorial service Monday in San Mateo, but was grounded by fog.

6.   Fog grounded flights from northern Italian airports for the second day running Wednesday while a strike halted trains and ferries.