We are all inclined to think that our first good guide, or the man who has brought us well through a difficult situation, must be the finest fellow in the Alps; and in the moments of generous after-enthusiasm we are in a hurry to say so with an emphasis that we hope will convince a cold-blooded later reader that he is at least a very fine fellow. We produce the same effect better by stating exactly what he did, and our opinion of this rather than of him, leaving it to other leaders to draw their own conclusions about the man himself. We avoid then for the guide the peril of that natural revulsion towards an attitude of antagonistic criticism into which all northern humanity is prone to lapse in the presence of other people’s enthusiasm, and for ourselves the tolerant smile of the time and guide worn mountaineer.
When we read in a guide’s book, returning like an echo from the records we wrote in our own earlier and romantic days, that ‘there is no greater rock climber in the present generation, a born iceman, an intuitive route-finder, a delightful companion and an unrivalled cook,’ we turn on hastily to another reference, with yet a half-sigh of good cheer and thankfulness for the assurance that one more very young climber has started wholeheartedly on our pleasant mountain ways.
WEATHER
There is one variable which belongs to the mountaineering rather than to the human division of the problems with which management has to deal. The weather is the background, foreground and middle distance of all big mountaineering. A change can upset the nicest adjustment of a climb to the strength of a party or to the length of a day. Every climber keeps one eye on this irresponsible neutral, which may at any time turn the scale of the campaign against him.
As a result, no mountaineer will endure, and no leader can afford, not to be thought a good weather prophet, even though the reputation be confined to his own mind. In reality, so unaccountable are changes in the hills, any fame acquired for infallibility must be the result of a large share of good fortune. The happy confidence in his own forecasts, that every leader owes it to his party to display, can only be based upon a few broad considerations, and upon bluff. No previous appearance of a mountain sky can be taken as sure ground for certain prophecy. A particular wind or ‘sign’ may mean totally different weather in two adjacent valleys; or the whole doctrine of the winds may be unaccountably reversed in an exceptional season. In the Alps, for instance, a north wind usually means clear, brisk, settled weather; a west wind, the continuance of unsettled weather; a south wind, a succession of storms that come and pass. But the seasons from 1909 to 1912 will provide instances of the north wind blowing continuously through alternate days of excessive and moderating rain and snow, and of the south and west winds attending an unbroken season of hot sunshine.
A leader, therefore, besides his groundwork of elementary knowledge, has to make himself acquainted with local signs of wind and weather in every season and in any new district; with such details, for instance, as that in the Zermatt valley “the weather comes from the west,” or that in Courmayeur we watch the south and west and do not bother with anything north of the range. Further, that in the Oberland a north-west wind brings storm, but a north-east wind brings clearing weather; that bad weather follows closely on a wind blowing over Col Theodule and round the west of the Matterhorn, but that a wind over Col du Lion and round the Matterhorn to the east is a fair-weather sign. He has to discover the relation which the prevailing wind bears to the weather conditions of a particular season or month. The one thing he can count upon is the habit that weather establishes in the Alps during two summers out of three of remaining one thing or the other for a continued period, once it has started, and of returning to this ‘habit of the season’ whenever there are not evident signs that it means to recommence or continue a spell of change.
The scientific study of weather, and its prediction by the barometer and thermometer, are matters for a whole book, and the authoritative textbooks are available. Instruments larger than of pocket size are something of an encumbrance to a climbing party, although I have always made an exception in favour of the pocket aneroid, because of the excellent humour with which it blesses its possessor whenever its statements and those of the atmosphere or the map happen to coincide. I limit myself here to recalling briefly some of the visible, ordinary and less esoteric ‘signs’ which have proved of common use in my own experience, more especially in the Alps.
Clouds.
Clouds form our principal sign. It is important to remember that clouds, while they continue to retain their original form, whatever that may be, will inflict no rain on us. It is their changes, when they alter, that we watch, and we predict rain or not according to their character during and after the changes.
We distinguish between the upper strata of clouds, whose character and direction are important as giving us the eventual direction of the wind and the more permanent character of the weather, and the lower strata, which have only a meaning for the day or hour, and are not prophetic.