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redout 1st December 2007 17:32
Winds aloft problem
 
I have a question about the winds aloft. Is the winds aloft given in reference to sea level (which I always thought) or by area concerned. The dilemma is that Madrid is 2000ft above sea level and the current winds aloft state.

WND/T: LA CORUNA MADRID SANTANDER ZARAGOZA
-------------- -------------- -------------- --------------
020HFT 273/011KT PS07 078/001KT PS07 285/018KT PS07 321/024KT PS09
050HFT 283/015KT PS03 355/005KT PS05 269/022KT PS02 332/017KT PS05

I am thinking that its referenced to sea level as the velocity for the wind in Madrid is very low compared to the other winds aloft in the areas nearby. So does this mean the wind at the surface in Madrid is 078/001KT and say the wind given at 050HFT is actually 3000ft AGL at Madrid ?


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