# pressure (mb)	dew temperature (oC)
  1006		26.4
  924		20.3
  900		19.8
  850		14.5
  800		12.9
  755		8.3
  710		-5
  700		-5.1
  600		-11.2
  500		-8.3
  470		-12.1
  459		-12.5
  400		-32.9
  300		-46
  250		-53
