21.   Severe and unpredictable weather is a perennial danger for mountain climbers.

22.   So while the weather is reasonably dry, check the exterior for weak spots in the defences.

23.   That day, the skies had clouded and, for the first time, the weather was cooler.

24.   That happens only once in a blue moon, when the weather is cold enough and thus the ice thick enough.

25.   The British weather is very changeable.

26.   The cold weather is with us again and the misery of the homeless is increasing.

27.   The following day, the weather was a little better.

28.   The local weather was always funereal.

29.   The major part of the flight from Nairobi was uneventful and the weather was good, if a little hazy, at Lusaka.

30.   The most obvious solution was simply to cancel the operation as the weather was totally unsuitable for parachuting.