Last night, massive supercells cropped up in the eastern plains of Colorado. A few tornadoes were reported, though there isn’t much population to really see much of a threat. The hail was more widespread, however, and it was gigantic.

Take a look at the tweeted imge of Colorado’s new largest recorded ahi slone.

Here is the record setting hailstone, shortly after it fell near Bethune, CO yesterday. Today, @NWSGoodland measured the stone at 4.83" in diameter and it weighed 8.5 ounces. Obviously, a little melting from its original size, but still beats the old state record of 4.5" #cowx pic.twitter.com/wjHCweQ1oq

— Brian Bledsoe (@BrianBledsoe) August 14, 2019

The crazy part is that pattern didn’t change much, if at all. Tennis balls fell on the same location the very next night!

Not record setting tonight, but the same family that endured the record setting hail last night had another round of hail tonight. This time, about tennis ball size…and unfortunately window damage. @NWSGoodland @ColoradoClimate #cowx pic.twitter.com/yNlLZqDvFi

— Brian Bledsoe (@BrianBledsoe) August 15, 2019

Hail stones are caused by strong updrafts, which cause droplets to accrete more and more ice and causes it to become heavier and heavier. The hail stone falls to earth when its weight causes the downward gravitational force to exceed the updraft force. Storms in eastern Colorado have had such intense updrafts so as a half a pound of ice could be suspended. These storms were fueled by the clash of dry air from the west intersecting the heat and humidity in the High Plains.

You can read more about the hail at the Denver Post.