[wxqc] Katabatic Wind Heat Spikes?

[Dave Helms]

We see lots of sun spikes in stations with poor radiation shielding, but 
sometimes you have to believe the data! 

Check out CW2749 in Loveland, Colorado:
http://www.findu.com/cgi-bin/wxpage.cgi?call=CW2749&last=72

On January 11th at about 4 UTC (10/22L), 12 UTC (11/06L), and 18 UTC 
(11/12L), there are three 20F degree rise and fall in temperature.  
Coincidently, there are three wind squals from the southwest with gusts 
over 30 mph.  Given that CW2749 is in the shadow of the Rocky Mountain 
front range, its a good bet this is a result of katabatic (downslope) 
warming,  aka  "Chinook" winds.

Dave
CW0351 

More on Katabatic Winds...
http://www.blackhillsweather.com/chinook.html
http://wxpaos09.colorado.edu/windstorms/chinook.html