First snowfall came in on tomcat feet rather than Sandburg's delightful description of fog coming on "little cat feet." My helper, Mary, and I lay down in separate places to window-watch its arrival.

By Aislinn Sarnacki When I was a little girl, I learned that no two snowflakes are alike. Each has a unique pattern — complex ...

Most snowflakes fall at speeds of one to six feet per second. A snowflake’s surface area and mass are the most important factors in determining its fall rate. Large flakes act like parachutes and fall ...