Posted in Web SLEET, FREEZING RAIN AND SNOW – how do they form? May 8, 2020 Freezing rain occurs when snow travels through a large layer of warm air and melts into rain. It then hits a very thin layer of freezing cold air at the surface. This is when we see our ice storms. https://www.wgal.com/article/winter-weather-how-does-sleet-freezing-rain-and-snow-form-precipitation/30766049