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Weather signs.—It is not always possible to obtain a timely professional weather forecast to cover a climb or expedition, nor is such a forecast always the final word about what the weather will do. The ski mountaineer, aided by a pocket aneroid barometer and a thermometer should, with additional study, understand many of the immediate weather signs that prevail in his area. The United States Weather Bureau's table of wind and barometer indications gives further assistance (see table on facing page). Following is the very general behavior of a traveling storm in the Northern Hemisphere. All probably's and if's, although deleted, should be understood. |
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