Field of Science

Brrrrr! Temperature and wind chil

It's bloody cold outside, and a recent trip to the tropics makes it seem even colder.  The temperature this morning was 1 F (-17 C) and a moderately brisk breeze contributed a -15 F wind chill factor so the apparent temperature is -14 F (-26 C).  It makes TPP's sinuses hurt just thinking about this.  Weather persons in the USA quite often screw up the wind chill reporting the factor as the apparent temperature, which today are fairly close numbers.  The apparent temperature is the temperature it feels like when the wind chill factor is subtracted from the air temperature.  They say something like "the temperature is XX and the wind chill is YY", and you have no idea what they are talking about, was that the wind chill factor or the apparent temperature once the WCF was subtracted?  In all likelihood they have no idea themselves, but it's annoying when it comes from someone whose job it is to report the weather that they don't make that clear especially when they portray themselves as a meteorologist.  However, this is quite cold no matter what.  Once in Chi-town the temperature was near zero (F) and the wind was strong enough to generate something like a -50 degree wind chill.  Walking just two blocks was torture. Temperatures like this make it a great pleasure to walk into the local coffee shoppe this AM with its steamy roasted coffee humidity and aroma. Roasted coffee just has an appealing smell, and you also get to wrap both your hands around the cup.  Nice.  A colleague was sitting there with a pile of evolution exams to grade and he has no intention of going anywhere else for quite awhile.  Such a good idea.

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