This evening's sounding (00Z 19 October 2010) at Flagstaff (top image) is very strange and very bad. The strange, nearly saturated layer in lower levels jumps to very warm temps just below 500 mb. The sounding then appears to have a superadiabatic lapse rate for much of the rest of the tropospheric data. With only a quick look, I'm not quite sure what the likely explanation might be. But, the 500 mb plot for 00Z (bottom graphic) shows that Flagstaff data were plotted and that its temperature is 6 to 7 degrees C warmer than surrounding stations!
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