The Ontario Weather Page - Weather Lore And Fact Sheets


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Weather Lore and Fact Sheets

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Weather Lore And Fact Sheets - Weather Lore

Want to impress your friends and business associates with some weird and wacky weather trivia, try a few of these ones out.

Take a cup of warm water outdoors and fling the contents into the air. If it freezes in midair and hits the ground with the sound like glass breaking, the temperature is somewhere between -60° and -70° F or –51° and –57° C.
During calm, clear weather, the dew point (the temperature at which dew appears) during the early evening – at about 6:00pm or so – is an excellent predictor of what the overnight low is going to be. In other words, if the evening dew point is 0° C or below, gardeners should be prepared for a frost. This rule does not apply to very dry areas in the West, but it works well in most of the eastern and central sections.
If you’re wondering whether an approaching thunderstorm is going to break overhead or blow over, pay attention to the air temperature and the wind. If you feel a chilly downdraft, abandon any idea that the storm will pass by. It’s almost certain to be raining hard where you are within the next few minutes.
If a jet flying overhead does not leave a visible contrail, you can be pretty sure it won’t rain the next day.
Packed snow begins to squeak underfoot at about -15° C. At about -18° C, it squeaks with a distinct hollow sound.
Walking a kilometer through six inches of snow takes as much effort as walking 2 kilometers on bare ground.
If it’s snowing hard enough that you can’t use your high beams while driving because the flakes in the air reflect the light back into your eyes, you can figure the snow is accumulating at a rate of about an 2.5 cm per hour.
Watch for bugs when you’re flying in a private plane. The higher you encounter flying insects, the smaller the chance of rain. During dry conditions, you might see them up as high as 3000 feet. If you don’t see any insects above 2000 feet, you’re probably looking at an increasing chance of rain.