Weather sticks may be constructed from any of a number of varieties of fir, though willow sticks are common in Russia and there are reports of birch being used in North America.
Weather stick Made of birch and attributed to northeast Native American tribes, the stick is said to rise indicating fair weather and to drop when inclement weather is approaching. The movement of the tip appears to track the relative humidity.
 See also: Horizon, Moisture, Period, Temperature, Humidity
  
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