Hailstorm.

One afternoon the sky goes as black as night and hailstones as big as golf balls begin to fall. All the lights go out and the computers go down. Some rooms become uninhabitable: windows are broken, or beds get wet because windows have been left open. Our team has no computers to find empty rooms for these displaced people. So we have to go around the house (with only emergency lighting to show us the way) finding what rooms are free.

Terrible damage is done to the vine-growing area around the Lake of Geneva. The only people who will benefit will be the glaziers. Over 300 panes of glass are broken in Caux's main building, Mountain House. Strangely some are not broken by the hail but by the difference of pressure between the inside and the outside air.