Wind Chill Warning Ends For Central Interior
Wednesday, January 18, 2012 @ 7:25 AM
Prince George, BC – The extreme wind chill warning that was to have blanketed the local region this morning has been lifted by Environment Canada…
The forecast high for Prince George, Vanderhoof, Quesnel, and Williams Lake remains a bone-chilling minus-27, but the anticipated wind chill would have made it feel more like minus-43 – meaning the risk of frostbite in just minutes.
Currently, Williams Lake is the regional ‘cold spot’, with the temperature reading minus-39.
The wind chill remains in effect for the Peace River Region this morning – with the temperature set to feel like minus-47 in Fort St. John, Dawson Creek and Chetwynd.
Comments
Did we even have a wind chill….
Here is the Canadian chart.
http://www.ec.gc.ca/meteo-weather/default.asp?lang=n&n=5FBF816A-1#table1
As the wind speed increases, the rate of change in the temperature equivalent is reduced. Thus, it is the low speeds which have the greatest effect.
From the chart, as an example, a -20C temp feels like -27C at a 10kph wind speed. So, a 7C change. Doubling the speed to 20kph increments it another 3C. Doubling that to 40kph increments it another 4C. It is a logarithmic scale.
So, even the slightest wind, say 5kph, will start cooling the skin down more quickly than no wind.
But yes, you are right, it was not all that windy when I was out.
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