If there be showery weather, with sunshine and increase of heat in the spring, a thunder-storm may be expected every day, or at least every other day.
First thunder in the spring—if in the south it indicates a wet season, if in the north it indicates a dry season.
South or Southeast Thunder.
Thunder from the south or southeast indicates foul weather, from the north or northwest fair weather.
Sheet Lightning.
If there be sheet lightning with a clear sky on spring, summer, and autumn evenings, expect heavy rains.
South Thunder.
If the first thunder is in the south, aha! the bear has stretched his right leg in his winter bed. (Zuñi Indians.)
Summer Lightning.
Lightning in summer indicates good healthy weather.