Factoid-Free* Potpourri - Home
Easy Wind-Speed Calculation
(Taken from page 88 of the 1996 edition of
"The Old Farmer's Almanac"
-- courtesy Mount Washington Observatory)
To gauge wind speed:
10 miles per hour
you can feel the wind on your face;
at 20 small branches move and dust or snow is raised;
at 30 large branches move and wires whistle;
at 40 whole trees bend.
(And, from personal experience.):
At 45 miles/hour,
you’ll be walking
at a 45-degree angle