Sleet forms when snows travels through a layer of warm air, melting into raindrops, before re-freezing into tiny ice pellets upon hitting a colder layer of air.Know More
Sleet can only form under very specific weather conditions, which is why it is not as common as other forms of precipitation. It usually occurs during the winter when the proper conditions are most common. Sleet is different than freezing rain. Freezing rain also falls through a layer of cold air towards the ground. However, it freezes upon contact with the object and not in the air. Freezing rain lands as rain, but sleet lands as ice. Sleet is also different than hail. Similarly to sleet, hail is made of ice. Hail, however, freezes while in the clouds. Sleet freezes while it falls.
Additionally, hail freezes in an outward direction, but sleet freezes in an inward direction. Sleet is most common in the eastern United States and Canada, where warm air from the Gulf of Mexico flows north and can create the warm layer of air needed to form sleet. Unlike other forms of precipitation, sleet is very light and does not collect easily. Because of this, sleet cannot harm crops or vehicles.Learn more about Storms
Although science is very advanced, there is not enough data to fully understand all the reasons behind tornado formation, but they are believed to occur when rotating thunderstorms form mesocyclones. Once the mesocyclone forms, temperature differentials cause air to wrap around it.Full Answer >
A blizzard requires three things to form: temperatures below freezing at ground level and in the clouds to allow snow to form, enough moisture to allow clouds and eventually snow to form, and a mass of warm air rising over a mass of cold air that creates strong winds. Bizzards are typically formed when a high-pressure system meets a low-pressure system.Full Answer >
Windstorms, also known as derecho winds, are produced by what meteorologists call downbursts. A downburst is a ground-level wind system in which gusts may blow in all directions from a single source. Most windstorms are made up of several downburst clusters, which in turn are composed of smaller bursts.Full Answer >
A flood forms when water submerges a typically dry area. This occurs in various ways, commonly when bodies of water, such as rivers, rise over their banks.Full Answer >