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[email protected][_2_] trader4@optonline.net[_2_] is offline
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Default Wind chill and water pipes

On Sunday, January 5, 2014 12:36:25 PM UTC-5, Mike wrote:
On 1/4/2014 11:37 PM, Gordon Shumway wrote:

On Sat, 04 Jan 2014 23:01:32 -0500, wrote:




On Sat, 04 Jan 2014 15:39:20 -0500, Ed Pawlowski wrote:




On 1/4/2014 9:12 AM,
wrote:



That's like saying the pipes will freeze if they will freeze.


Sure, if you want to define ambient to be the temperature at the


pipes. But who measures that? The point is if one hears that


it's going to be 20F tonight, is there valid reason to be more


concerned about pipes in an outside wall, a drafty crawlspace,


etc freezing if the reported windchill is 0F versus 17F? The


answer to that is yes.




Let's change the parameters. Outside temperature is 35 degrees, but


because of the wind, the weatherman says the wind chill factor is 29


degrees. Will the pipe freeze? No.




No, but it will cool faster. Wind chill is still relevant to


inanimate objects, even above freezing.




You would have been 100% correct if you had left off the word "chill."






Reread FAQ 12. Their statement is, 'The only effect wind chill has on

inanimate objects, such as car radiators and water pipes, is to more

quickly cool the object to cool to the current air temperature. Object

will NOT cool below the actual air temperature.' I know in their first

statement they confirmed wind chill only applies to people and animals,

but they can't have it both ways.



Thank you. Another person who sees the contradiction and that what
NOAA says is consistent with what I've been saying.




It appears you and the NWS are not in agreement either.



Perhaps it would be more accurate to say wind chill temperature only

applies to people and animals since it describes a felt condition (I

don't subscribe to the idea that inanimate objects 'feel').


It doesn't just reflect "feel". Wind taking heat away from a human
being is what causes the feeling. It's not some majical effect confined
to living things. It's caused by wind removing heat faster with a higher
wind speed.

The same exact effect applies to inanimate objects, like a bucket of
75F water placed outside when it's 20F. With a lower windchill number,
it's going to freeze faster. Clearly that is an effect.




And, that

wind chill describes the condition where the wind sucks the heat out of

anything.



It sucks the heat above the air temp out of anything, that is correct.
NOAA says it. Therefore Gordon's statement that:

"Wind chill" has no effect on inanimate objects. Period, if I may
quote our fearless leader. "

is wrong. His own link from NOAA says so.


A bucket of 75F water placed outside when it's 20F with a windchill of
0F is going to freeze faster than if the windchill is 20F.

A house is going to take more energy to keep warm on a night when it's
20F outside, but the windchill is 0F instead of 20F.

And pipes in a drafty crawlspace are more likely to freeze on that 20F
night with a windchill of 0F, instead of 20F.

He won't even address any of those. Instead of manning up and admitting
he's wrong, he just keeps digging his hole deeper, like some others.
We;ve seen it before