“We’d already had sleet, and hoar frost, black ice and rime, and that hail–snow hybrid known as graupel, which forms when snow falls through clouds and supercooled water droplets accrete to form white pellets a few millimetres across.”
“We’d already had sleet, and hoar frost, black ice and rime, and that hail–snow hybrid known as graupel, which forms when snow falls through clouds and supercooled water droplets accrete to form white pellets a few millimetres across.”