When cold air meets warm air, frontal wedging occurs. In frontal wedging, cold air forces warm air upward; the warm air then forms clouds, resulting in rain.Know More
When cold and warm air collide, one of four types of frontal wedging occurs: warm, cold, stationary or occluded. A warm front occurs when warm air pushes away cold air. These usually come in from the southwest. When cold air pushes out warm air from the northwest, this is called a cold front. When a stationary front occurs, warm and cold fronts move in and push against each other, but neither manages to push the other one out, resulting in clouds and storms.
An occluded front occurs when both warm and cold air are moving in the same direction and one overtakes the other. If the cold air overtakes the warm air, then it is considered a cold occlusion. If the opposite happens, it is called a warm occlusion. Experts believe that an occluded front is a sign that a storm is almost blown out and weakening.
Not all air collisions occur between warm and cold air. In some cases, two air masses with the same temperature collide in a process called convergence. When this happens, both air masses rise and form clouds.Learn more in Weather & Tides
Sound travels faster in warm air than in cold air. For example, sound travels 358 meters per second at 45 degrees Celsius, while it travels 330.4 meters per second at minus 1 degrees Celsius.Full Answer >
Hot air rises and cold air sinks due to varying densities. Given the same volume of air, hot air is generally less dense compared to cold air.Full Answer >
Cold fronts result in the appearance of clouds, rain, strong winds and thunderstorms. When these conditions pass, the temperature grows cooler, dropping as much as 15 degrees Fahrenheit within an hour of the cold front's arrival.Full Answer >
An electric heater might blow cold air because the thermostat is set too low or is not working properly, the air has not had enough time to warm up yet or there is leaky or blocked duct work. Most of these are easily determined and corrected by the homeowner.Full Answer >