In the US “sleet” is the term for a winter precipitation that occurs when snow falls through a layer of warm air and melts into water droplets, then re-freezes into ice pellets as it passes through colder air closer to the ground. In many other areas that were part of the British empire that precipitation is called “ice pellets” and “sleet” instead refers to a mix of snow and rain. In the US that’s called a “wintry mix.”
Hail is precip that has been able to repeatedly rise and fall on air currents, building up in size. What they’re referring to as sleet is essentially just crunchy snow in size and texture.
Sleet is usually kind of slushy. Hail can crack a windshield. I’ve never heard of the pellets as sleet.
Yeah. This is hail. 2018 Denver area, Colorado. When the conditions are right, I suspect the air currents swirl this against the mountain range until its heavy enough to get launched across the state.
I wouldn’t call this sleet in any country as sleet just sounds too dainty.
Sleetstorm