XVIII.
WEATHER "WRINKLES"
The boat sailer or yachtsman should be able, from close observation of the barometer and the general appearance of the sky, to foretell the weather with a certain degree of accuracy. The aneroid barometer is peculiarly sensitive to all atmospheric changes, and is thus invaluable for meteorological forecasts. A regular code of phenomena has been formulated by meteorologists, from which I take the following:
A rapid rise indicates unsettled weather.
A gradual rise indicates settled weather.
A rise with dry air and cold increasing in summer indicates wind from the northward, and if rain has fallen better weather may be expected.
A rise with moist air and a low temperature indicates a continuance of fine weather.
A rapid fall indicates stormy weather.
A rapid fall with westerly wind indicates stormy weather from northward.
A fall with northerly wind indicates storm with rain and hail in summer and snow in winter.
A fall with increased moisture in the air and increasing heat indicates southerly wind and rain.