Table 1. Comparison of predicted and observed foehn warmings at the Knoxville airport (TYS).

Time and Date 850-hPa temperature (immediately upwind of the Smokies) Predicted TYS temperature (using the dry adiabatic lapse rate Observed TYS temperature
06 UTC (1 am LST) on 23 December 2004 7 0C (45 0F) 17 0C (62 0F) 17 0C (62 0F)
12 UTC (8 am LDT) on 17 October 2006 11 0C (52 0F) 21 0C (70 0F) 17 0C (63 0F)
06 UTC (1 am LST) on 25 February 2007 6 0C (43 0F) 16 0C (61 0F) 16 0C (61 0F)
15 UTC (10 am LST) on 1 March 2007 8 0C (46 0F) 18 0C (64 0F) 13 0C (56 0F), but 17 0C (63 0F) at 12 UTC (7 am LST)

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