Sleet
Sleet
Sleet (/sliːt/), in meteorological terms, refers to a form of precipitation consisting of ice pellets, often mixed with rain or snow.
Etymology
The term "sleet" originates from the Middle English word "slete", which is related to the Old English "sceot", meaning "hail".
Pronunciation
The word "sleet" is pronounced as "sleet".
Definition
Sleet is a type of precipitation that occurs when snowflakes partially melt as they pass through a layer of warm air, then refreeze into ice pellets as they pass through a layer of freezing air near the ground. These ice pellets are known as sleet.
Related Terms
- Precipitation: Any product of the condensation of atmospheric water vapor that falls under gravity from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, and hail.
- Snow: A type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds.
- Rain: Liquid water droplets that fall from the sky, which are much larger than drizzle droplets.
- Hail: A form of solid precipitation that is produced by cumulonimbus clouds. Hailstones consist mostly of water ice and measure between 5 millimeters (0.2 in) and 15 centimeters (6 in) in diameter.
- Ice Pellets: A type of precipitation consisting of small, translucent balls of ice. Ice pellets are smaller than hailstones and are different from graupel.
- Graupel: Soft, small pellets formed by the accumulation of supercooled water droplets on a snowflake.
External links
- Medical encyclopedia article on Sleet
- Wikipedia's article - Sleet
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