http://kplu.org en http://kplu.org/post/how-avoid-stagnant-air-which-here-til-tuesday <p><span style="line-height: 1.5;">In some places, such as eastern Washington farms, they actually use giant fans to disrupt the inversion that causes stagnant air (which is what we've been experiencing for a week, and can leave frost on fruit trees).</span></p><p>But, KPLU weather expert and UW professor Cliff Mass says those fans won't work in western Washington, because <a href="http://cliffmass.blogspot.com/2013/01/super-inversion-and-bad-air.html">the natural forces creating the inversion</a> are too strong. Instead, he suggests taking a hike. Fri, 18 Jan 2013 17:17:10 +0000 Keith Seinfeld 7584 at http://kplu.org How to avoid that stagnant air, which is here 'til Tuesday