The cold front is often the most spectacular feature of a weather system, with violent squalls, towering cloud formations, veering wind and perhaps dramatic quantities of precipitation. After the front, a clearer, windy scene usually brings fairer weather in its wake. Sometimes, the bending of the isobars on the front leads to a brief period of comparative calm immediately after it has passed. Don’t be deceived by this. It may herald a hard northwesterly blow in another hour or two.