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What is the average width of the precipitation zone of a cold front?
  • A
    500 – 1000 km
  • B
    50 – 100 NM
  • C
    150 – 300 NM
  • D
    10 – 30 km

Refer to figure.

COLD FRONT. Can be defined as cold air replacing warm air.
The denser cold air displaces/overtakes the less dense warm air => cold air will slide itself under the warm air, forcing it to rise.

  • The slope of a cold front is approximately 1:50 to 1:80.
  • Cold fronts are typically much faster than warm fronts. The front moves at right angles to itself at a speed equal to the geostrophic interval (full) measured along the front.
  • Precipitation associated with a cold front usually affects a narrow area (rain belt) of 50 - 100 NM (93 – 185 km) – mainly showery precipitation on both sides of the front, but mostly behind it.
  • A winter cold front in Europe will usually produce more intense weather and precipitation.

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