Northeasterly winds precede storms that approach from the southwest; that is, in New England and the Middle States and the Ohio Valley. Southeasterly winds precede storms that approach from the Lake region.
THERMOMETERS
For information regarding the manufacture of thermometers, we recommend P. R. Jameson’s book, “Weather and Weather Instruments,” published by the Taylor Instrument Companies of Rochester, N. Y.
Thermometers are of great importance to us in determining weather.
LOCATION OF THERMOMETERS
1. They must be properly exposed.
2. A good circulation of air around them is necessary.
3. They must be properly protected from the rays of the sun.
Note: If these instructions are not carefully followed out, errors are apt to occur, and you will be misled.
For a change of wind towards northerly directions, a thermometer falls. For a change of wind toward southerly directions a thermometer rises.