At mid-latitude, a warm front will advance, rising slowly warmer moist air, causing clouds that will end up by precipitation. As the trailing cold front passes, it will be much steeper, causing shifty wind and precipitation showers, sometimes with thunderstorm. read more
They all are, for the following reason: A front is the separation between two air masses with different temperature, moisture and pressure. Meteorology is all about the thermodynamic effects of air masses with different temperature, moisture and pressure. read more
A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena outside the tropics. In surface weather analyses, fronts are depicted using various colored triangles and half-circles, depending on the type of front. read more
Precipitation Along a Cold Front lifting the warm moist air ahead of it The animation below is a sequence of vertical cross sections that depict the development of precipitation ahead of and along a cold front. read more