Winter rain storms preceded by rapidly falling barometer and heavy cirro-stratus clouds, with wind from southeast or southwest.
Upper clouds moving from southwest indicate rain, but if from west or northwest, fair weather.
Heavy ocean-swell from southeast indicates rain from that direction. Wind storms preceded by dense haze, rapidly falling barometer, and rising temperature with southerly winds and with northerly winds, rising barometer, and falling temperature with low humidity.
Cape May, N. J.
Easterly storms are generally preceded from twelve to twenty-four hours by an unusually clear atmosphere, with high barometer and temperature. Light winds prevail and mirage in various forms, but more particularly the variety known as “loom,” which enlarges distant objects in such a manner as to render distance very deceptive. The sea comes in with a long, heavy, easterly, ground swell, and a decided increase occurs in the rise of the tides. An unusual twinkling of stars is observed, and a larger number of them are visible, extending nearly to the horizon. The first clouds are generally cirrus, from the west or southwest, followed often by haze, which gradually thickens and lowers into a stratus, forming a heavy bank in the southwest, which gradually extends over and into the northeast, the whole mass deepening and lowering until nimbus clouds form and appear moving with the wind. Storms of the greatest severity and duration are generally with the wind from north-northeast to east-northeast, and rapidly increase in violence. They are attended with, or preceded by, a rapid depression of the barometer. Temperature rises for a veering, and falls for a backing, wind.
Easterly storms, slowly forming, are attended by moderate winds.
Storms from the southeast are often violent, but of short duration, lasting only from six to twelve hours, and shifting suddenly to the opposite direction.
Charleston, S. C.
During the months of April, May, June, July, August, and September, storms are preceded by slowly diminishing pressure, rising temperature, increasing humidity, and cumulus clouds, with wind from the west and northwest.
Winter storms come from the northeast and southeast. Those from the northeast are preceded, for several days, by brisk wind from that direction, rapidly rising barometer, slowly falling temperature, increasing humidity, with stratus clouds moving slowly from the northeast until the whole sky is covered and a dense mist begins to fall, which soon becomes rain as the clouds approach the earth. Storms from the southeast are the most dangerous. They are preceded by light and variable southeast winds, falling barometer, and rising temperature. The day immediately preceding the storm is generally a fine one, with a few cirrus or cirro-stratus clouds, increasing humidity, wind variable, and rising slowly.