Cold Fronts

  • Zone/boundary between warmer, more moist, unstable air (usually mT) being replaced by colder, drier, more stable air (usually cP).
  • Location of cold front:
    • leading edge of sharp temperature change
    • moisture content (dew point) changes dramatically
    • wind shift (direction and speed)
    • pressure trough (pressure tendency is useful!!!)
    • often cloudy/showers/thunderstorms/sometimes severe
  • What does a vertical cross section through a front look like??
image from Meteorology Today by C. Donald Ahrens  1994 West Publishing Company